Answer: As you probably have seen in the ocean or a lake, the stronger the wind, the higher the waves. The period and wavelength can be expressed in terms of their reciprocals, the wave frequency ω = 2(pi)/T, and the wave number κ = 2(pi)/λ.
Explanation: To find the period, we solve for T=1f, given the value of the frequency (f=2s−1). T=12 s−1=0. 5 s. Since one definition of wavelength is the distance a wave has traveled after one complete cycle (or one period), the values for the wavelength (λ=0.9m) as well as the frequency are given.
whats does 14.600 oz = to in grams
Given that 1 ounce equals 28.35 grams, the value of 14.600 ounces in grams is approximately 413.9g.
What is the value of 14.600 oz in grams?Note that:
1 ounce = 28.35 grams
Given that;
Value of mass = 14.600 ozValue of mass in gramsSince 1 ounce = 28.35 grams, 14.600 oz will be;
14.600 oz = ( 14.600 × 28.35) grams
14.600 oz = 413.9g
Given that 1 ounce equals 28.35 grams, the value of 14.600 ounces in grams is approximately 413.9g.
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Activity of integration Most of the people in a certain village called Bileafe where much tobacco is grown bought vehicles after tobacco sales. However, no sooner than later many of the vehicles either broke down or they were parked at home since fuel became expensive to afford. As a student of chemistry, develop a message for the owners of the cars in this village explaining why the vehicles should be kept well even if they are spoilt, where they should be kept, and what kind of change they will undergo if not properly kept. You can use the resources to help you develop the message.
They will be instructed to park their cars in a cool dry environment in order to prevent rusting of the vehicle parts.
What is Rusting?This is defined as a chemical change in which Iron reacts with Oxygen to form a new substance called Iron oxide.
Iron oxide is usually brownish in color and further corrodes the metal parts. It is also referred to as a Chemical change in chemistry due to new substance being formed.
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A student pushes a 40-n block across the floor for a distance of 10 m. how much work was done to move the block? responses a. 4 j b. 40 j c. 400 j d. 4,000 j
The work was done to move the block across the floor is 400 Joule.
What is force?The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.
A spring balance can be used to calculate the Force. The Newton is the SI unit of force.
Force applied on the block: F = 40 N.
Displacement of the box = 10 m.
Hence, work done to move the block = Force × Displacement
= 40 × 10 joule
= 400 joule.
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AP Physics Question
An amusement park ride consists of a large vertical wheel of radius that rotates counterclockwise on a horizontal
axis through its center, as shown above. The cars on the wheel move at a constant speed . Points and
represent the position of a car at the highest and lowest point of the ride, respectively. A person of weight sits
upright on a seat in one of the cars. As the seat passes point , the seat exerts a normal force with magnitude
on the person. While passing point , the person releases a small rock of mass , which falls to the ground
without hitting anything.
2. Which of the following best describes the passenger’s linear and angular velocity while passing point ?
A
Linear Velocity Angular Velocity
Constant Changing
B
Linear Velocity Angular Velocity
Constant Constant
C
Linear Velocity Angular Velocity
Changing Changing
D
Linear Velocity Angular Velocity
Changing Constant
The linear velocity is changing and the angular velocity is Constant best describes the passenger’s linear and angular velocity while passing a point.
What is the definition of Angular velocity?The rate of change of angular displacement is defined as angular speed, and it is stated as follows:
ω = θ t
Where,
θ is the angle of rotation,
t is the time
ω is the angular velocity
The linear velocity is given as the product of angular velocity and radius.
v=ωr
In the circular motion, the linear velocity is changing. Because the radius is changing.While the angular velocity is constant.Because it is an independent quantity.
Hence the Linear velocity is changing and the angular velocity is Constant best describing the passenger’s linear and angular velocity while passing a point.
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We are given that angle aob is a central angle of circle o and that angle acb is a circumscribed angle of circle o. we see that ao ≅ bo because . we also know that ac ≅ bc since . using the reflexive property, we see that . therefore, we conclude that △aco is congruent to △bco by the .
The side AO ≅ side BO because all radii of the same circle are congruent and equal. We also know that AC ≅ BC since tangents to a circle intersecting at a point are congruent. Using the reflexive property, we see that side CO is congruent to side CO. The △ACO and △BCO are congruent by the SSS congruency theorem.
Point O is the center of the circle, and AO and BO are both radii of the circle. Thus, it means that AO ≅ BO because; All radii of the same circle are congruent and equal.
Since AO and BO are equal, it means that since point C is the intersection point of tangents from points A and B, then we can say that;
AC ≅ BC because; tangents to a circle that intersects are congruent.
Reflexive property shows that the length of a side is congruent to itself. In △ACO and △BCO, we see that they share a common side which is CO. Thus, CO is congruent to side CO.
From the above conclusions we have;
AO ≅ BO
AC ≅ BC
CO ≅ CO
This means all three corresponding sides of both △ACO and △BCO are congruent. Thus, we can conclude that;
△ACO is congruent to △BCO by the SSS Congruency theorem.
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The image of the question is given in the attachment.
The correct question is given below-
∠AOB is a central angle and ∠ACB is a circumscribed angle given to you to prove that △ACO ≅ △BCO.Fill in the blanks.
We are given that angle AOB is a central angle of circle O and that angle ACB is a circumscribed angle of circle O. We see that AO ≅ BO because ____
We also know that AC ≅ BC since ___
Using the reflexive property, we see that ____
Therefore, we conclude that △ACO is congruent to △BCO by the _____
Is this conversion correct?
11.3g/ cm^3 to kg/ m^3
Since 1000 g = 1 kg and 100 cm = 1 m
Therefore, (11.3 x 1000)/ 100
= 113 kg/ m^3
11.3 g/cm³ equals to 1130 kg/m³.
What is density?The mass of a substance per unit of volume is its density. Density is most frequently represented by the symbol ρ, however Latin letter D may also be used. Density is calculated mathematically by dividing mass by volume.
Given that 11.3 g/cm³.
Know that
1000 grams = 1 kg
1 grams = 1/1000 kg.
100 cm = 1 m
1 cm = 1/100 m.
Therefore, 1 cm³ = (1/100)³ m³
= 1/1000000 m³
Hence, 1 g/cm³ = (1/1000) ÷ (1/1000000) kg/m³
= 1000000/1000 kg/m³
= 1000 kg/m³.
Hence, 11.3 g/cm³ = (11.3 × 1000) kg/m³
= 1130 kg/m³
Hence, 11.3 g/cm³ equals to 1130 kg/m³.
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Everything in the universe is made up of matter or energy, including common everyday objects you use. Identify some ways that you've used energy today and explain how that energy was transformed.
Everything in the universe is made up of matter or energy. Some ways that we have used energy today are turning on a light switch, using a microwave, driving a car, charging a phone.
Some examples of how energy is transformed in common everyday objects.
Turning on a light switch: When you turn on a light switch, you are completing an electrical circuit that allows electrons to flow through a wire and into a light bulb. The electrical energy is then transformed into light energy, which allows you to see.
Using a microwave: When you use a microwave to heat up food, the microwave emits electromagnetic radiation, which causes the water molecules in the food to vibrate and generate heat. The electrical energy from the microwave is transformed into thermal energy, which heats up your food.
Driving a car: When you start a car engine, the battery supplies electrical energy to the starter motor, which turns the engine. The chemical energy in the fuel is then transformed into thermal energy, which expands the gases in the engine and moves the pistons, which ultimately turns the wheels and propels the car forward.
Charging a phone: When you plug your phone into a charger, the electrical energy from the outlet is transformed into chemical energy, which is stored in the battery. The chemical energy is then transformed back into electrical energy when you use your phone.
These are just a few examples of how energy can be transformed in everyday objects.
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What are the advantages of two-dimensional art forms like photographs?
What are the limitations of two-dimensional art forms like photographs?
Answer:Two dimensional forms can create the illusion of 3 dimensional shapes and spaces.
Explanation:
What is the efficiency when 5j is supplied to a buzzer and 2j is transferred into sound energy?
Answer:
40%
Explanation:
The efficiency of a system is calculated as the ratio of the useful power output to that of the input power.
Efficiency = useful output/input x 100%
In this case, input power = 5j, useful output = 2j
Efficiency = 2/5 x 100%
= 40%
The efficiency of the buzzer is, therefore, 40%.
Mercury, Mars, and Earth’s moon all show evidence of heavy cratering from meteor impacts while Earth shows much less evidence of meteor impacts. The most reasonable conclusion to make from this data is that the early solar system had a much higher density of rocky material, but–
a) Earth has been resurfaced by ongoing processes.
b) the rocky material was less likely to reach Earth.
c) Earth formed much later, when the solar system had fewer meteors.
d) the protection from impact provided by Earth’s atmosphere is decreasing.
Answer:
D)
Explanation:
A platinum resistance thermometer measures temperature by the change in the electrical resistance of a platinum wire. The coefficient of resistivity for platinum is 3.92×10
−3
∘
C
−1
. At a temperature of 20.0
∘
C, the thermometer has a resistance of 50.0Ω; when immersed in a crucible containing melting indium its resistance is 76.8Ω. What is the melting point of indium? Question 9 An electric fire has a heating element rated at 1 kW when operating at 230 V. (a) what is its resistance? (b) what will be the power dissipation if the mains voltage drops to 210 V, assuming that the element obeys Ohm's Law?
From the calculation;
1) Melting point of indium = 171.4°
2) The resistance is 52.9 ohm
3) The power dissipated is 834 W
Temperature coefficient of resistanceThe temperature coefficient of resistance is a measure of how much the resistance of a material changes with temperature. It quantifies the relationship between the change in resistance and the change in temperature.
We have that;
R1/R2 = (1 + αt1)/(1 + αt2)
50/76.8 = (1 + (3.92 * \(10^-3\) * 20))/(1 + (3.92 *\(10^-3\) * t))
0.65 = 1.0784/1 + 0.00392t
0.65(1 + 0.00392t) = 1.0784
0.65 + 0.0025t = 1.0784
t = 171.4°
P = \(V^2\)/R
R = \(V^2\)/P
R = \(230^2\)/1000
R = 52.9 ohm
The new power is;
P =\(210^2\)/52.9
P = 834 W
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a snow cover tends to ________ the overlying air, thus inhibiting convection
A snow cover tends to stabilize the overlying air, thus inhibiting convection.
Snow acts as an insulator, reducing the transfer of heat between the surface and the atmosphere. When a snow cover is present, it prevents the direct contact of the air with the underlying surface, leading to a decrease in temperature gradients and a reduction in turbulent mixing. This stabilization of the air inhibits convection, which is the vertical movement of air masses due to temperature differences.
The presence of a snow cover creates a stable atmospheric condition by inhibiting convection and reducing turbulent mixing. This can result in a more static and calm air mass above the snow-covered surface.
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Poisoner's Handbook Video
Questions
1. What are some symptoms of cyanide poisoning?
2. Describe the state of death investigation in the New York Medical Examiner's office/police department prior to the
hiring of Dr. Norris?
3. What famous hospital became the home of Norris lab?
Bellevue Hospital
4. In what ways did the local government officials (mayor, etc.) try to discourage Norris?
5. Morris believed that Prohibition had become a plague? Why did he refer to Prohibition as a "national experiment in
extermination'?
6. Why was the Standard Oil manufacturing plant referred to as the looney bin?
7. What is illuminating gas? Why was it responsible for more deaths in New York than measles and tuberculosis?
8. Radium was used in painting clock and watch faces because it glowed and make the numbers and hands illuminate
at night. These were worn by servicemen during the war. Women worked in the factories painting these time
pieces during war time. They were known as the radium girls. What effects did these girls experience as a results of
their exposure to radium?
9. What mineral does radium mimic? What effect does this have on the body?
10. Describe New York when the depression hit?
11. What did Prohibition promise that did not happen?
12. Who is Mike the Durable? How did he get this nickname?
Dizziness, Headache, Nausea, vomiting, rapid breathing, rapid heart rate, Restlessness and Weakness are the symptoms that shows poisoning of cyanide.
What are some symptoms of cyanide poisoning?Dizziness, Headache, Nausea and vomiting, Rapid breathing, Rapid heart rate, Restlessness and Weakness are the some of the symptoms of cyanide poisoning. Cynaide is a very dangerous and fast acting poison that leads to death if not treated on time.
So we can conclude that all above are the symptoms caused by cyanide poisoning.
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How is the amplitude of a
longitudinal wave measured?
A. the distance between two rarefactions
B. the distance between two compressions
C. It is measured by how close together or spread
apart the compressions and rarefactions are.
Describe an organism that might live in an extreme environment such as inside a volcano, deep in the ocean, or in an icy cave.
Answer:
If you haven’t read about the shark found swimming in and out of a segment of an undersea volcano, then you really need to get up to date.
Explanation:
PLEASE PLS PLS ANSWER ASAP
Answer:
Explanation:
24 i think
Answer:
B. 24
Explanation:
There are 24 atoms in one molecule of C6 H12 06. This chemical compound is made up of 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen. We find the number of atoms by adding these numbers up. We than get:
6 + 12 + 6 = 12 + 12 = 24
Therefore, there are 24 atoms in the following chemical formula.
Explain why it is safe to eat food from the uranium glass plate.
a. idea that food is irradiated / not contaminated.
b. alpha cannot penetrate skin or body
c. contains low percentage of uranium(-238).
The answer for Eating food from a uranium glass plate is safer is Choice C which is food is irradiated / not contaminated.
It is safer to eat food from a uranium glass plate because the uranium added to the glass will always be in the oxidized form used to color it. The uranium added to the glass will also be not soluble thus it will not be radioactive.
Thus, the reason for eating food safely from the uranium glass plate is it will not be contaminated
The other two options(alpha cannot penetrate skin or body and contains a low percentage of uranium) will be wrong because the plate will be completely non-radioactive.
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What type of elements are presented in the periodic table
The center of gravity G of a 3.5-lb unbalanced tracking wheel is located at a distance r = 0.9 in, from its geometric center. The radius of the wheel is R = 3 in. and its centroidal radius of gyration is 2.2 in. At the instant shown the center B of the wheel has a velocity of 1.05 ft/s and an acceleration of 3.6 ft/s^2, both directed to the left. Knowing that the wheel rolls without sliding and neglecting the mass of the driving yoke AB, determine the horizontal force P applied to the yoke
The horizontal force P applied to the yoke is approximately -2.584 lb.
To determine the horizontal force P applied to the yoke, we can use the equations of rotational motion and dynamics.
Find the angular acceleration (α) of the wheel:
α = a_B / R,
where a_B is the linear acceleration of point B on the wheel.
Given that a_B = -3.6 ft/s^2 (directed to the left) and R = 3 in (converted to ft), we have:
α = -3.6 ft/s^2 / 3 ft = -1.2 ft/s^2.
Calculate the moment of inertia (I) of the wheel:
I = k^2 * m,
where k is the centroidal radius of gyration and m is the mass of the wheel.
Given k = 2.2 in (converted to ft) and m = 3.5 lb, we have:
I = (2.2 ft)^2 * 3.5 lb = 16.94 lb·ft^2.
Determine the acceleration of the center of gravity (a_G) of the wheel:
a_G = R * α,
where R is the radius of the wheel.
Given R = 3 in (converted to ft), we have:
a_G = 3 ft * (-1.2 ft/s^2) = -3.6 ft/s^2.
Calculate the horizontal force P applied to the yoke:
P = I * α / R + m * a_G.
Substituting the values we obtained:
P = (16.94 lb·ft^2) * (-1.2 ft/s^2) / 3 ft + (3.5 lb) * (-3.6 ft/s^2) = -2.584 lb.
Therefore, the horizontal force P applied to the yoke is approximately -2.584 lb. Note that the negative sign indicates that the force is directed to the left, as stated in the problem.
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Which scientist described an atom made of a solid positively charged substance with electrons dispersed throughout it?.
The scientist that described an atom made a solid positively charged substance with electrons dispersed throughout it was: Ernest Rutherford.
In 1911 Ernest Rutherford proposed his atomic model in which he considered the atom as a positively, densely charged center called a nucleus in which the electrons circulate around the core with a negative charge.
He was responsible for many discoveries in the radioactivity's fields and nuclear physics.
What is an atom?The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.
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What forces are acting upon a book sitting
on a
countertop?
How do the Oxygen and Water molecules compare to Neon and Argon?
Answer:
Oxygen and Water are almost impossible not to stumble across while neon and argon are obtained from air in an air separation unit using the methods of liquefaction of gases and fractional distillation.
The oxygen molecule is a diatomic gas while the Neon and the Argon are monoatomic gases that exist separately without combining with other atoms or molecules because of their inert nature, on the other hand, water is a molecule that consists of two hydrogen atoms and a single oxygen atom.
What is a Chemical compound?A chemical compound is a combination of two or more either similar or dissimilar chemical elements.
For example, H₂O is a chemical compound made up of two oxygen atoms and a single hydrogen atom.
The oxygen molecule is a diatomic gas, whereas neon and argon are monoatomic gases that, due to their inertness, remain alone without joining with other atoms or molecules. In contrast, water is a molecule made up of two hydrogen atoms and one oxygen atom.
Thus, the oxygen and water molecules are different compared to Neon and Argon.
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An airplane flies 1,592 miles east from Phoenix, Arizona, to Atlanta, Georgia, in 3. 68 hours. What is the average velocity of the airplane? Round your answer to the nearest whole number. Mph.
To calculate the average velocity of the airplane, we need to divide the total displacement by the total time taken. The displacement is the distance traveled in a specific direction.
Given:
Distance traveled (displacement) = 1,592 miles (east)
Time taken = 3.68 hours
Average Velocity = Displacement / Time
Since the displacement is in the east direction, we consider it positive.
Average Velocity = 1,592 miles / 3.68 hours ≈ 432 miles per hour (rounded to the nearest whole number)
Therefore, the average velocity of the airplane is approximately 432 mph.
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a car starts from the rest and accelerates at 9.54m/s for 6.5 seconds. what is the distance covered by the car
Answer:
= 201.53 meters
Explanation:
A car started from rest and accelerated at 9.54 m/s^2 for 6.5 seconds. How much distance was covered by the car?
Use the formula d = \(\frac{at^{2} }{2} ,\)
where d is the distance, t is the time and "a" is the acceleration.
\(d=\frac{9*54*6*5^{2} }{2} = 201.53 m\)
The D & J Fruit Farm pays pickers $0.50 per pound to pick blueberries. The
berries are packed in pint baskets and sold to grocery stores for $1.15 per
pint. How many pint baskets are needed for 300 pounds of berries?
Answer:
.36
Explanation:
:)
Answer:
.36
Explanation:
A student designs an experiment to demonstrate the conservation of gravitational potential and kinetic energy. She drops a wooden block from rest through a photogate 2 m below. If energy is conserved, how fast should the block be traveling when it passes through the photogate?
A.
2.0 m/s
B.
6.3 m/s
C.
9.8 m/s
D.
19.6 m/s
Answer:
6.3 m/s
Explanation:
A student drops a wooden block from rest through a photogate 2 m below. Since there is a conservation of the gravitational potential energy and the kinetic energy, the final speed of the block is B. 6.3 m/s.
Gravitational potential energy and kinetic energyGravitational potential energy: is the potential energy a massive object has in relation to another massive object due to gravity.Kinetic energy: is a form of energy that an object or a particle has by reason of its motion.A wooden block is dropped from rest. If energy is conserved, the initial gravitational potential energy (U₁) will be equal to the final kinetic energy (K₂).
U₁ = K₂
m × g × h₁ = 1/2 × m × v₂²
where,
m is the mass of the object.g is the gravity.h₁ is the initial height.v₂ is the final speed.m × g × h₁ = 1/2 × m × v₂²
g × h₁ = 1/2 × v₂²
v₂ = √(2 × g × h₁)
v₂ = √(2 × (9.8 m/s²) × 2 m) = 6.3 m/s
A student drops a wooden block from rest through a photogate 2 m below. Since there is a conservation of the gravitational potential energy and the kinetic energy, the final speed of the block is B. 6.3 m/s.
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6. What charge is in the nucleus?
a. negative charge
b. positive charge
C. no charge
d. positive and negative charges
please help ill give brainly and heart !!!
in which month would you LEAST likely expect a hurricane?
A ) July
B ) August
C ) October
D ) February
Answer:
July
Explanation:
In july you would expect least hurricane
MULTIPLE CHOICE QUESTION
Principal axis or optical axis is a virtual line that passes through
the center of the lens
the lower part of the lens
Principal axis or optical axis is a virtual line that passes through
the center of the lens.
What is lens?A lens is a transmissive optical tool that employs refraction to focus or disperse a light beam. A compound lens is made up of numerous simple lenses that are often aligned along a common axis, as opposed to a simple lens, which is made up of a single transparent piece.
Principal axis the line between the optical center and the centers of curvature of a lens's or a curved mirror's faces. Any one of three axis that are mutually perpendicular and around which a body has its greatest moment of inertia.
Principal axis or optical axis is a virtual line that passes through
the center of the lens.
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after the switch is closed, what will be true about the brightness of these bulbs?
When a switch is closed, it completes the circuit, allowing electricity to flow through it. In a circuit with multiple bulbs, the amount of electricity that flows through each bulb depends on the resistance of the bulb.
After the switch is closed, the brightness of the bulbs will depend on their individual resistances. If all three bulbs have the same resistance, then they will all be equally bright. However, if one of the bulbs has a higher resistance than the others, it will be dimmer than the other two bulbs. Conversely, if one of the bulbs has a lower resistance than the others, it will be brighter than the other two bulbs.
In conclusion, the brightness of the bulbs after the switch is closed will depend on their individual resistances. If all three bulbs have the same resistance, they will be equally bright, but if one bulb has a higher or lower resistance than the others, it will be either dimmer or brighter than the other bulbs.
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