a 2.50 kg block, sitting on the floor, is attached to a wall by a spring with a spring constant of k
Answers
The force exerted on the block by the spring is 89.7 N and it will experience an acceleration of 35.8 m/s².
Mass of the block = 2.5 kg
Spring constant of the spring = 115 N/m
Change in the length of the spring = 78.5 cm = 0.78 m
Friction = 0
The force exerted on the block by the spring is,
\(Spring \: constant = \frac{Force }{ Change \: in \: length \: of \: the \: spring}\)
\(k = \frac{F}{x}\)
\(F = x \times k\)
\(F = 0.78 \times 115\)
\( = 89.7 \: N\)
The force exerted on the block by the spring is 89.7 N.
It will experience an acceleration of,
\(Force= mass \times acceleration\)
\(F = m \times a\)
\(a = \frac{F}{m} \)
\(a = \frac{89.7}{2.5} \)
\( = 35.8 \: m/s ^{2} \)
Thus, it will experience an acceleration of 35.8 m/s².
Therefore, the force exerted on the block by the spring is 89.7 N and it will experience an acceleration of 35.8
m/s².
To know more about acceleration, refer to the below link:
https://brainly.in/question/9415862
#SPJ4
Related Questions
Jan is holding an ice cube. What causes the ice to melt?
Thermal energy from the ice is transferred to the air.
Thermal energy from Jan’s hand is transferred to the ice.
The air absorbs thermal energy from Jan’s hand.
Jan’s hand absorbs thermal energy from the ice.
Answers
The ice melts because Thermal energy from Jan’s hand is transferred to the ice.
What is thermal energy?Thermal energy is the energy due to temperature difference.
Thermal energy flows from hotter to colder bodies.
The ice Jan is holding melts because heat is transferred from his hands t the ice.
In conclusion, thermal energy flow causes melting.
Learn more about thermal energy at: https://brainly.com/question/19666326
#SPJ1
Answer:
its b
Explanation:
because the heat from your hand makes the ice melt!
Do the Pressure vs. Depth Lab (record Describe how the distance the water
your activity)
•When will the water flow out the farthest: when the water is nearly full, half-full, or nearly empty?
•Hold the bottle over the bucket so that the water will flow out the hole into the bucket and loosen the bottle cap.
Observe the flow of water. PUT THE CAP BACK ON!
•Describe how the distance the water flowed out changed as the depth of the water changed.
fill in the blanks
•The pressure of a fluid _____ as depth increases. So pressure and depth are _____ proportional.
This can be written as _____
Answers
Pressure vs. Depth Lab:
The water will flow out the farthest when the bottle is nearly full.As the depth of the water increased, the distance the water flowed out also increased.The pressure of a fluid increases as depth increases. So pressure and depth are directly proportional.This can be written as P ∝ d, where P is pressure and d is depth.What is pressure?Pressure is defined as the force per unit area applied on an object. It is a scalar quantity, which means it only has magnitude and no specific direction.
It is often measured in units of Pascals (Pa), which is equivalent to one Newton of force per square meter of area. Pressure can be caused by the weight of an object, the force applied by a fluid, or the collision of particles with a surface.
Find out more on pressure here: https://brainly.com/question/28012687
#SPJ1
A penny is dropped off the top of the Statue of Liberty, 93 m tall. What is the speed of the penny after 2.5 seconds (assuming no air resistance)?
Answers
The speed of the penny after 2.5 seconds is 24.5 m/s.
What is speed?
Speed is a scalar quantity that refers to "how fast an object is moving." It is the rate at which an object changes its position, and it is measured in units of distance per unit of time (such as meters per second or miles per hour). Speed is related to the distance traveled by an object and the time it takes to travel that distance, and it can be calculated by dividing the distance traveled by the time it took to travel that distance.
The speed of an object in free fall can be calculated using the equation:
v = g * t
where v is the velocity, g is the acceleration due to gravity (approximately 9.8 m/s^2 on the Earth's surface) and t is the time elapsed.
In this scenario, the penny is dropped off the top of the Statue of Liberty, which is 93 m tall, and we want to find the speed of the penny after 2.5 seconds.
So, we can substitute the values in the equation:
v = 9.8 m/s^2 * 2.5 s = 24.5 m/s
Therefore, the speed of the penny after 2.5 seconds is 24.5 m/s (assuming no air resistance).
To learn more about speed:
https://brainly.com/question/26046491
#SPJ1
what is the source of energy that directly drives atp synthase in its production of atp?
Answers
The sun's thermal energy serves as the primary energy source for producing atp during the photosynthesis process. Essentially, it serves as the primary catalyst for all metabolic processes in plants. Protons diffusing through the F0 section of ATP synthase
What is adenosine triphosphate?All living things contain the energy-carrying molecule adenosine triphosphate (ATP) in their cells. When food molecules are broken down, chemical energy is released that is captured by ATP and used to power other cellular operations.
To drive metabolic events that would not happen naturally, to transfer necessary molecules across membranes, and to do mechanical labor, such as moving muscles, cells need chemical energy.
Chemical energy cannot be stored by ATP; lipids and carbohydrates such as glycogen serve this purpose. ATP is created when energy from storage molecules is required by the cell.
To know more about adenosine triphosphate:
https://brainly.com/question/859444
#SPJ12
how much does a change in mass affect the kinetic energy of two balls of comparable diameter?
Answers
Answer:
Mass and kinetic energy have a positive relationship, which means that as mass increases, kinetic energy increases, if all other factors are held constant.
In this state, Kinetic energy is equal to half of the product mass and velocity. SI unit is joules. So it's if the mass is doubled then the kinetic energy also gets doubled.
A person walks 6.0 miles in 2.5 hours. Calculate the average velocity of the person.
Please show the work and the answer ty.
Answers
Answer:
\(1.1 \: \mathrm{m/s}\)
Explanation:
The formula for average velocity is \(\frac{\Delta x}{\Delta t}\), where \(\Delta x\) = total displacement and \(\Delta t\) = time.
Because velocity is usually given in meters per second, convert 6.0 miles to meters and 2.5 hours to seconds:
6.0 miles = \(9656.09\: \mathrm{meters}\)
2.5 hours = \(9000 \: \mathrm{seconds}\)
Therefore the average velocity of the person is \(\frac{9656.09}{9000} \approx 1.07 = \fbox{$1.1\: \mathrm{m/s}$}\) (two significant figures).
I need help with this will give brainly.
Remote-controlled planes may take over most hurricane-hunting missions
A. Vivid Language
B. Objective Language
Answers
There is really no words that would engine any emotion. It is really just stating what may happen.
Correct me if I am wrong
Answer:
gogo
Explanation:
A rubbing or scraping force that penetrates and destroys the outermost layer of skin is called a(n):
Answers
A rubbing or scraping force that penetrates and destroys the outermost layer of skin is called an abrasion.
An abrasion is a type of injury to the skin caused by friction, typically through rubbing or scraping against a rough surface. When an object or surface applies force and moves across the skin, it can cause the outermost layer of the skin, known as the epidermis, to be worn away or damaged.
The force applied during an abrasion is strong enough to disrupt the integrity of the skin and remove the superficial layers, exposing the underlying tissues. The severity of an abrasion can vary depending on factors such as the force applied, the duration of the contact, and the nature of the surface involved.
Abrasions commonly occur as a result of falls, accidents, or contact with abrasive materials such as rough pavement, gravel, or sandpaper. The friction and scraping action during an abrasion can cause pain, bleeding, and the formation of a raw or scraped area on the skin.
Treatment for an abrasion typically involves cleaning the wound to remove any debris or dirt, applying an antiseptic to prevent infection, and covering the area with a sterile dressing. In most cases, abrasions heal on their own over time as new skin cells regenerate to replace the damaged layers.
It is important to keep an abrasion clean to prevent infection and promote healing. Additionally, proper wound care, such as keeping the area moisturized and protected, can help minimize scarring and promote optimal healing.
Learn more about abrasion here:
https://brainly.com/question/31914760
#SPJ11
the total energy of a system is 300j. if the potential energy is 40j what is the kinetic energy if the object started 300m above the ground?
Answers
Answer:
43.3 m/s.
Explanation:
Assuming the potential energy is due to the gravitational potential energy, we can use the conservation of energy to find the kinetic energy:
Total energy = Potential energy + Kinetic energy
Kinetic energy = Total energy - Potential energy
Kinetic energy = 300 J - 40 J = 260 J
However, we need to know the mass of the object to convert the kinetic energy to velocity. We can use the potential energy to find the mass:
Potential energy = mgh
40 J = m(9.81 m/s^2)(300 m)
m = 0.137 kg
Now we can use the kinetic energy to find the velocity:
Kinetic energy = (1/2)mv^2
260 J = (1/2)(0.137 kg)v^2
v^2 = (2*260 J) / 0.137 kg
v = 43.3 m/s (rounded to one decimal place)
Therefore, the kinetic energy is 260 J and the velocity of the object when it reaches the ground is 43.3 m/s.
What is the converse of the statement "No pilots are mechanics"?
a. No mechanics are pilots.
b. Some mechanics are pilots.
c. All pilots are mechanics.
d. None of these
Answers
The converse of the statement "No pilots are mechanics" is No mechanics are pilots.
Hence, the correct option is A.
The converse of a statement switches the subject and the predicate and negates both. In the original statement, the subject is "pilots" and the predicate is "mechanics."
The original statement states that there is no overlap between pilots and mechanics. In the converse statement, the subject becomes "mechanics" and the predicate becomes "pilots," and it still states that there is no overlap between the two groups.
Therefore, The converse of the statement "No pilots are mechanics" is No mechanics are pilots.
Hence, the correct option is A.
To know more about converse here
https://brainly.com/question/1833821
#SPJ4
which of the following substances has the highest specific heat?
a. steel
b. water
c. alcohol
d. chloroform
Answers
The substance which has the highest specific heat is b. water
The quantity of heat energy needed to raise a substance's temperature by a certain amount is measured by its specific heat. The term specific heat capacity refers to total amount of heat energy needed to increase a substance's temperature by one degree Celsius per kilogram. In terms of joules per gramme per degree Celsius or calories per gramme per degree Celsius, it is measured.
Compared to many other substances, water has a high specific heat. Water has a specific heat of about 4.18 °C or 1 cal °C). This means that to raise the temperature of one gram of water by one degree Celsius, 4.18 joules or which can be one calorie of energy are required.
Read more about specific heat on:
https://brainly.com/question/29792498
#SPJ4
Two particles, A and B, are in uniform circular motion about a common center. The acceleration of particle A is 8.5 times that of particle B. The period of particle B is 2.0 times the period of particle A. The ratio of the radius of the motion of particle A to that of particle B is closest to
Answers
The ratio of the radius of the motion of particle A to that of particle B is closest to 1:5 or 1/5.
The acceleration of the particle is given as;
a = v²/r
Where v is the velocity of the particle.
Hence, the ratio of the acceleration of the particles is given as;
a₁/a₂ = v₁²/v₂²... (1)
The period of a particle in uniform circular motion is given as;
T = 2πr/v
Where v is the velocity of the particle in circular motion.
Hence, the ratio of the periods of the particles is given as;
T₁/T₂ = r₁/r₂... (2)
From equation (1);
a₁/a₂ = v₁²/v₂²
Let us assume the velocity of the particle B to be V then;
8.5 = v₁²/V²
V = v₁/√8.5
Let the period of particle A be T, then from the question, the period of particle B is 2T.
T₁/T₂ = r₁/r₂
T/T2 = r₁/r₂
From equation (2);
T/T₂ = r₁/r₂
Let the radius of the particle B be r.
Then, the radius of particle A is;
8.5 = v₁²/V²
v₁²/V² = 8.5
v₁/√8.5 = 2.915v₂
v₁/v₂ = 2.915r₂ = r/2
r₁/r₂ = T/T₂ = 1/2r₁/r = 1/5
Therefore, the ratio of the radius of motion of particle A to that of particle B is 1:5, i.e. the closest to 1/5.
Learn more about uniform circular motion here: https://brainly.com/question/30215891
#SPJ11
Choose the option that best suit the question .
An inclined plane of angle Ɵ, acting as a simple machine has a velocity ratio :
(a) sinƟ
(b) 1/sinƟ
(c) cosƟ
(d) 1/cosƟ
(e) sinƟcosƟ
Answers
Answer:
(b) 1/sinƟ
Explanation:
A simple machine can be defined as a type of machine with no moving parts but can be used to perform work.
Basically, a simple machine allows for the transformation of energy into work. The six simple machines are; lever, wedge, pulley, screw, wheel and axle, and inclined plane.
Inclined plane is a simple machine set at an angle and then used to lift an object.
In Physics, the velocity ratio of a simple machine is calculated as a ratio of the distance moved by the effort to the vertical distance through which a load is raised.
Mathematically, the velocity ratio of an inclined plane of angle Ɵ, acting as a simple machine is given by the formula;
Velocity ratio (V.R) = 1/sinƟ
Basically, an increase in the angle of inclination (measured in degrees) of an inclined plane increases its velocity ratio.
Which is a compound?
A) A sandwich with bread, meat, and cheese?
B) A spoon made of pure silver?
C) Nickel and oxygen reacting chemically?
D) Long and short nails in the box
Answers
Salinity measures the amount of salts dissolved in water. Which statement correctly explains what happens whenaquatic animals are moved to an aquatic ecosystem with a different salinity?
Answers
The individual effect of salinity reduced organism performance in 43% of the observations, including decreased survival and growth, increased osmolyte content in bodily fluids, altered metabolic rates, etc.
What effects does salinity have on aquatic life?Estuarine water's salinity varies from one estuary to the next and can alter day to day based on the tides, weather, and other variables. Estuaries are transitional regions that connect land and water, as well as habitats for both freshwater and saltwater species.Ocean water density can be impacted by salinity: Water with a higher salinity is denser, heavier, and will sink beneath less salinized, warmer water. Ocean currents may be impacted by this. It may also have an impact on marine life, which may need to control how much saltwater it consumes.It makes a significant contribution to conductivity and influences many aspects of the chemistry of natural waters as well as the biological activities that take place there. Temperature, pressure, and salinity all influence the physical properties of water, including its density and heat capacity.To learn more about aquatic ecosystem with a different salinity refer to:
https://brainly.com/question/1563358
#SPJ1
Calculate the maximum absolute uncertainty for R if:
R = B - A
A = 32 +/- 2 seconds
B = 11 +/- 3 seconds
43 seconds
1 second
21 seconds
5 seconds
6 seconds
Answers
Answer:
ΔR = 5 s
Explanation:
The absolute uncertainty or error in an expression is
ΔR = | \(\frac{dR}{dB}\) | ΔB + | \(\frac{dR}{dA}\) | ΔA
the absolute value guarantees to take the unfavorable case, that is, the maximum error.
We look for the derivatives
\(\frac{dR}{dB}\) = 1
\(\frac{dR}{dA}\) = -1
we substitute
ΔR = 1 ΔB + 1 ΔA
of the data
ΔB = 3 s
ΔA = 2 s
ΔR = 3 + 2
ΔR = 5 s
A 5. 0kg box is at rest on a table. The static friction coefficient μs between the box and table is 0. 50, and the kinetic friction coefficient μk is 0. 30. Then, a 30N horizontal force is applied to the box. What is the best estimate of the magnitude of the box's acceleration?
Answers
The acceleration of the box is best calculated to be equal to 3.06m/s²
How can I calculate the acceleration of the box?We would first compute the magnitude of the kinetic frictional force in order to determine the size of the acceleration of this box.
The following equation can be used to determine the kinetic frictional force acting on a physical body mathematically:
F = μkN = μk(mg)
F = 0.30 × 5.0 × 9.81
F = 14.7Newton.
Newton's second law of motion is used to calculate the net force, which is as follows:
∑Fx = Applied force - kinetic frictional force = ma
Acceleration, a = [Applied force - kinetic frictional force]/m
Acceleration, a = [30 - 14.7]/5
Acceleration, a = 15.3/5
Acceleration, a = 3.06m/s²
To know more about acceleration visit:
https://brainly.com/question/20382454
#SPJ4
the question is confusing
Answers
Alpha particles have highest mass.
Alpha particles are most ionising.
Gamma particles are the most penetrating.
Beta particles are negatively charged.
Gamma particles have the highest speed.
Comparing the three types of ionizing radiation-alpha particles have the greatest mass. Alpha particles have approx 4 times the mass of a proton or neutron and 8,000 times the mass of a beta particle. Ionising power of alpha particle is very high due to double positive charge, large mass as compared to a beta particle. Alpha particles can cause multiple ionisations within a very small distance. Beta radiation is more penetrating than alpha radiation. beta radiation can pass through the skin, but it is absorbed by a few cm of tissue of the body or a few mm of aluminum. Gamma radiation is the most penetrating of the three radiations. Alpha particles are positively charged, while beta particles are negatively charged, and gamma radiation is electrically neutral. Gamma rays are similar to visible light but they have higher energy. Gamma rays are emitted along with alpha or beta particles during radioactive decay.learn more about gamma rays here:
https://brainly.com/question/2399890
#SPJ10
a battery made up of two cells joined in series supply current to an external resistance of each cell is 0.6v and 3 ohms respectively. calculate 1 the current flowing in the external resistance 2 the thermal potential difference 3 the lost voltage
Answers
Answer:
We have a battery here, composed of two cells joined in series, which is supplying current to an external resistance. The voltage of each cell is given as 0.6 volts and the resistance is 3 Ohms. In order to solve the problem, we need to calculate three things: the current flowing in the external resistance, the thermal potential difference and the lost voltage.
First, let's calculate the current flowing in the external resistance. Using Ohm's Law, we can find the current as I = V/R, where V is the total voltage of the battery (i.e. 2*0.6=1.2V) and R is the external resistance, which is given as 3 Ohms. Therefore, I = 1.2/3 = 0.4 amps.
Next, let's calculate the thermal potential difference. This is the amount of heat generated by the current flowing through the external resistance, and is given by the formula P = I^2*R, where P is the power, I is the current, and R is the resistance. Plugging in the values, we get P = 0.4^2*3 = 0.48 watts. Since we know that power is equal to voltage times current (P = VI), we can rearrange the formula to get V = P/I, which gives us V = 0.48/0.4 = 1.2 volts.
Finally, we need to calculate the lost voltage. This is the voltage drop that occurs across each cell due to internal resistance. We can use the formula V_lost = I*R_int, where R_int is the internal resistance. Since we know the current and the resistance of the external load, we can use the total voltage of the battery to find the internal resistance. Recall that the total voltage of the battery is 1.2V. Therefore, V_lost = I*R_int, or R_int = V_lost/I. We know that the voltage drop across each cell is equal, so we can divide the lost voltage by 2 to get the voltage drop across each cell. Therefore, V_cell = V_lost/2 = (0.4)*(R_int/2). Plugging in the values, we get V_cell = 0.4*(1.2-0.4*3)/2 = 0.06 volts.
In summary, the current flowing in the external resistance is 0.4 amps, the thermal potential difference is 1.2 volts, and the lost voltage across each cell is 0.06 volts.
What is the formula for calculating force?
Answers
The formula for calculating the force is to multiply the mass of the body by the acceleration of the body.
When we move a body, we apply a force on it and the force that we apply on the body can be calculated by using the standard relation derived from the Newton's second law of motion.
F = dp/dt
P = Mass x Velocity
If the mass of the body is constant.
F = Mass x d(velocity)/dt
F = Mass x Acceleration
So, the formula for calculating the force applied on the body is the product of the mass and acceleration acting on the body.
To know more about force, visit,
https://brainly.com/question/12785175
#SPJ4
Write an expression for the maximum angle, θm, that the board can make with respect to the horizontal before the block starts moving.
Answers
sin(ø)=Us*cos(ø) is an expression for the maximum angle, θm, that the board can make with respect to the horizontal before the block starts moving.
What is friction?
The force that prevents one solid item from moving over another is known as friction. Static friction, sliding friction, rolling friction, and fluid friction are the four major categories of friction. Two surfaces that come into contact and slide against one another produce frictional energy. Surface roughness and the quantity of force pressing them together have the biggest an impact on these forces.
The angle of friction is the product of normal reaction and limiting friction with the normal reaction. The tangent of the friction angle is equivalent to the coefficient of static friction.
0= Usmgcos(ø) - mg*sin(ø)
mgsin(ø) = Usmg*cos(ø)
=> sin(ø)=Us*cos(ø)
To learn more about friction use:
https://brainly.com/question/24338873
#SPJ1
Basic design elements include (Check 7)
What are the 3 properties of color? Immersive Reader
depth, shade, fragrance
value, hue, depth
saturation, hue, chroma
hue, value, intensity
Answers
Answer: depth, shade, fragrance
Explanation:
Anyone who’s good at grade 9 physics please help answer these 2 questions correctly.
For both it’s asking to look at the diagram and explain if the light bulb with light up. Thanks!!
WILL MARK BRAINLIEST FOR ANYONE WHO CAN HELP I APPRECIATE IT!
Answers
The bulb will light up in A but not in B because B is a short circuit.
What is a short circuit?
When an electrical current bypasses the circuit's intended path or typical load and instead flows via an unanticipated path, the result is a short circuit. This could lead to a sudden surge in current that could harm electrical machinery, ignite a fire, or endanger nearby occupants' safety.
A direct connection between a power source's positive and negative terminals or a path with less resistance than the planned circuit are examples of the path that the current will take in a short circuit.
Learn more about short circuit:https://brainly.com/question/31476272
#SPJ1
calculate the speed of a bowling ball that travels 4 meters in 2 seconds
Answers
Answer:
2 m/s
Explanation:
Just divide the distance and time. 4/2= 2 m/s
A 5.00 Ω and a 10.0 Ω resistor are connected in series across an unknown voltage. The total current in the circuit is 3.00 A. What is the total voltage drop for the entire circuit?
Answers
The total voltage drop for the entire circuit is calculated as 45.00 V.
What is voltage drop?Amount of voltage loss that happens through all or part of circuit due to impedance is called as voltage drop.
When resistors are connected in series, the total resistance is the sum of individual resistances, i.e., R = R1 + R2.
For 5.00 Ω resistor, the voltage drop is V1 = IR1 = (3.00 A)(5.00 Ω) = 15.00 V.
For 10.0 Ω resistor, the voltage drop is V2 = IR2 = (3.00 A)(10.0 Ω) = 30.00 V.
Total voltage drop for the entire circuit is the sum of the voltage drops across each resistor:
V = V1 + V2 = 15.00 V + 30.00 V = 45.00 V.
Therefore, the total voltage drop for the entire circuit is 45.00 V.
To know more about voltage drop, refer
https://brainly.com/question/28786270
#SPJ1
which phase of the ism is most opaque to visible light?
Answers
The most opaque phase of matter to visible light is the solid phase.
In solids, the atoms or molecules are closely packed and have strong interactions with each other. As a result, visible light has difficulty passing through the solid material, leading to high levels of opacity. The orderly arrangement of particles in a solid causes the light to scatter and be absorbed or reflected, preventing it from transmitting through the material with ease.
Materials such as metals, wood, rocks, and opaque plastics are examples of solid substances that exhibit high opacity to visible light. The dense and tightly bonded nature of solid structures contributes to their ability to block or absorb light, making them appear opaque or non-translucent.
In contrast, gases and liquids are generally more transparent to visible light compared to solids. The molecules or atoms in gases and liquids are more dispersed and have weaker interactions, allowing light to pass through with less obstruction and resulting in lower opacity.
To learn more about solid phase, Click here: brainly.com/question/1348844
#SPJ11
The differences between microwaves and infrared radiation are due to differences in their _____.
A 25 V battery is connected into a circuit with two resistors in series. One resistor has resistance 5.0 Ω and the other has resistance 7.5 Ω. What is the voltage drop across the 7.5 Ω resistor?
Answers
Answer:
15 V
Explanation:
From the question,
For series connection: (i) Both resistor have a common current flowing through the (ii) The combined resistance = R1+R2
Rt = R1+R2.................. Equation 1
Given: R1 = 5 ohms, R2 = 7.5 ohms.
Rt = 5+7.5 = 12.5 ohms.
Applying Ohm's law,
V = IRt................... Equation 2
Where V = Voltage, I = current.
make I The subject of the equation
I = V/Rt.............. Equation 3
Given: V = 25 V, Rt = 12.5 ohms.
Substitute into equation 3
I = 25/12.5
I = 2 A.
Now,
Voltage drop across the 7.5 ohms resistor = R2×I
Voltage drop across the 7.5 ohms resistor = 7.5×2
Voltage drop across the 7.5 ohms resistor = 15 V
I need help pls help I am struggling bad
Answers
Due to the battery's ability to transform chemical potential energy into electrical energy, the circuit is kept running. Because it transforms electrical energy into light and heat energy, the light bulb consumes power from the circuit.
What is the resistor value of brown black brown gold?I = Req V = (24/5)24 = 5 A of current is being taken from the battery. Using Ohm's Law, V = IR, one may determine the current. In order to compute the current, one must first know the value of R. V is the battery voltage. As a result, a resistor's colour coding is brown, black, brown. 0 ohms, or 100 ohms, is the resistance value. calculating the values for the resistor colour code .
Taking a resistor as an example, the marks are as follows: Yellow Violet Red = 4 7 2 = 4 7 x 100 = 4700 or 4k7 Ohm. When calculating the resistor's percentage tolerance, the fourth and fifth bands are employed. P=2.25R/(R+0.5)2 P = 2.25 R / (R + 0.5) 2 watts are the units of power that a battery may supply to an instrument with resistance R (measured in ohms) (W).
To learn more about battery power refer to :
https://brainly.com/question/15174412
#SPJ1
the gulf stream off the east coast of the united states can flow at a rapid 3.8 m/s to the north. a ship in this current has a cruising speed of 10 m/s . the captain would like to reach land at a point due west from the current position.
Answers
72.54 degree west of south gulf stream flow at a rapid 3.8 m/s speed to the north.
flow = 3.9 m/s north
speed = 11 m/s
hypotenuse ×cos(angle) = adjacent side
11 ×cos(angle) = 3.3
cos(angle) = 0.3
angle = 72.54 degree west of south
Speed is a measurement of how quickly an object's distance traveled changes. Speed is a scalar, which means it has magnitude but no direction as a unit of measurement. Speed is the rate of movement of an object over a predetermined distance. a thing that moves quickly and with high speed, covering a lot of ground in a short time. On the other hand, a slow-moving object moving at a low speed covers a comparatively small distance in the same amount of time. An object with zero speed does not move at all.
To know more about speed visit : brainly.com/question/93357
#SPJ4
a sound wave has a frequency of 400 hz and a wavelength of 20 meters what is the speed
Answers
Answer:
8000m/s
Explanation:
Speed is the measure of ratio of distance to time taken to cover that distance.
So speed of wave is calculated as the product of wavelength and frequency.
As the wavelength is given as 20 m and the frequency is given as 400 Hz, then the speed will be
Speed = wavelength × Frequency = 20 × 400
Speed of wave = 8000 m/s.
So speed of wave is 8000 m/s.