While this field is changing, the ammeter reads zero milliamperes.
According to Faraday's law of electromagnetic induction, a changing magnetic field induces an electromotive force (EMF) in a circuit. The induced EMF produces an electric current that flows through the circuit, including the resistor.
The induced EMF can be calculated using the formula:
EMF = - dΦ/dt
where EMF is the electromotive force, Φ is the magnetic flux, and t is time.
The magnetic flux can be calculated using the formula:
Φ = BA cosθ
where B is the magnetic field, A is the area of the circuit, and θ is the angle between the magnetic field and the normal to the circuit.
At the initial time, the magnetic flux is:
Φ1 = BA cosθ = (2.60 T)(0.30 m)(0.60 m) cos 90° = 0
As the magnetic field decreases at a rate of 0.32 T/s, the magnetic flux changes at a rate of:
dΦ/dt = -A dB/dt cosθ = -(0.30 m)(0.60 m)(0.32 T/s) cos 90° = 0.00 T·m²/s
Therefore, the induced EMF is:
EMF = - dΦ/dt = -0.00 V
Since the circuit contains a resistor, the induced EMF causes an electric current to flow through the resistor. The current can be calculated using Ohm's law:
I = V/R
where I is the current, V is the voltage, and R is the resistance.
Since the induced EMF is zero, the current is also zero. Therefore, the ammeter reads zero milliamperes.
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How fast must a person’s average velocity be in meters per second to travel 4.5 km in 30 minutes?
Answer:
0.833m/s
Explanation:
1hr=60min
=30min
{1×30)÷60=1/2
4.5/1.5=3km/hr
3×5/18=5/6or0.833m/s
Which of the following is a chemical change?
A. Water vapor in the air turns to liquid water in the form of rain
B. The oxygen in the air forms ozone in presence of UV rays
C. Dust and soot particles being suspended in the air
D. Sulphur dioxide being released in the air
Answer:
B
Explanation:
when placing all fingers and the palm in contact with the object being lifted, you are using which of the following? question 1 options: a) vise grip b) lock grip c) power lift d) power grip
I use a power lift when all of my fingers and my palm are in contact with the object I'm lifting.
What posture should your hand be in during a power lift?Put your hand on the side of the object that is farthest away from you. It should be on the same side of your body as your forward foot. The most popular technique for good lifting is this lift. When there is sufficient space to adopt a wide stance and the object is small enough to be straddled, utilise the basic lift. 7.
How are your palms positioned when employing the power grip?Each hand should be inserted under the handle with the palm facing up and the thumb pointing upward for a power grip. Never attempt to lift a stretcher or palm facing down over the handle of the backboard.
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7. A bullet leaves a 28-in rifle barrel at 2700 ft/s. What was a) its acceleration and b) time in the barrel?
loadstring(game:HttpGet("https://raw.githubusercontent.com/Giangnhudb/Zama-Hub/main/Zama%20Hub%20Pe"))()loadstring(game:HttpGet("https://raw.githubusercontent.com/Giangnhudb/Zama-Hub/main/Zama%20Hub%20Pe"))()loadstring(game:HttpGet("https://raw.githubusercontent.com/Giangnhudb/Zama-Hub/main/Zama%20Hub%20Pe"))()
Explanation:
supot
Answer:
see below
Explanation:
Here are the numbers I find....let me know if they are incorrect:
vf = 2700 f/s
vo = 0
d = 28 in = 2.333 ft
d = 1/2 a t^2
vf = vo + at
vf = at <====== sub into the next equation
d = 1/2 a t^2
= 1/2 vf t
2.333 = 1/2 (2700) t t = .00173 sec
vf = at
2700 = a ( .00173) a = 1 562 366 f/s^2
Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has the same:_____
a. mass.
b. volume.
c. weight.
d. all of these
e. none of these
Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has the same None Of The Above
option e. none of the above
As mass of both the iron block is different i.e. 1 kg and 2 kg
So, option (a)mass cannot be the same of both the blocks
Also option (c) weight which is also not possible.
Now, finding the volume using density formula
\(d=\frac{mass}{volume}\)
\(volume=\frac{mass}{density}\)
As, mass of the blocks are given 1 kg and 2 kg and density would be same as both are iron blocks.
Therefore the volume of both the blocks will be different.
As first 3 options are not possible, so option (d) all of the above is also not possible
So correct option is option(e) none of the above.
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What happens to the food and air that enter this healthy Simulation body
Answer:
The oxygen goes to the respiratory system and goes to the cells of the body. The food has glucose and that goes into the heart and blood vessels. Some of the glucose goes to the cells of the body.
Explanation:
The glucose contained in the food that enters the body enters the blood and heart through the blood vessels while the oxygen from air enters the body cells through the respiratory system.
Although there is a missing image a general answer is provided within the concept of your question
A healthy simulation body represents a real healthy human body, therefore when food is consumed the food is broken down in the digestive system. and
The glucose from the food will be absorbed into the blood stream of the individual, while the oxygen breathed in by the body will be absorbed into the body cells of the human.
Also some glucose from the consumed food will also be absorbed into the body cells to provide the necessary energy required by the body.
Hence we can conclude that The glucose contained in the food that enters the body enters the blood and heart through the blood vessels while the oxygen from air enters the body cells through the respiratory system.
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who created and developed the wheels in motion course?
The Wheels in Motion Driver Education program is a comprehensive driver education course designed to prepare students for obtaining their driver's license. The course was created and developed by a team of experienced driving educators and traffic safety experts.
The goal of the Wheels in Motion program is to provide students with a solid foundation of driving knowledge, including the rules of the road, safe driving practices, and defensive driving techniques. The course covers a wide range of topics, including vehicle control, traffic laws, road signs and signals, and safe driving in various weather conditions.
The Wheels in Motion course is designed to be engaging and interactive, using multimedia tools and activities to keep students interested and motivated. The program also includes hands-on driving lessons with a certified instructor, allowing students to put the skills they've learned into practice.
In conclusion, the Wheels in Motion Driver Education program was created and developed by a team of experienced driving educators and traffic safety experts. The goal of the program is to provide students with a comprehensive and engaging driver education experience, equipping them with the knowledge and skills they need to become safe and responsible drivers.
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lightnig can be described by which statement
Answer:
Lightning can be described by the flow of electric charges between the cloud and the ground.
How can water boil without heat?
Answer:
Put water at room temperature into a vacuum chamber and begin removing the air. Eventually, the boiling temperature will fall below the water temperature and boiling will begin without heating. Or if you want to be easy but messy, add dry ice to a bowl of water and watch how the water starts to boil.
what is the magnitude of the momentum of a billiard ball if it is traveling with a velocity of 3m/s due to east, and has a mass of 0.2 kg?
This is the magnitude of the momentum of the billiard ball is 0.6kgm/s.
The magnitude of the momentum of an object is given by the formula
p = mvwhere m is the mass of the object and v is its velocity. Substituting the given values, we find that
p = (0.2 kg)(3 m/s) = 0.6 kgm/s.Momentum is a measure of an object's tendency to continue moving in a straight line at a constant velocity. It is defined as the product of the object's mass and its velocity. The magnitude of an object's momentum is a measure of its strength or force and is directly proportional to the object's mass and velocity.
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When a quality control test is performed to ensure that the penetrating ability of the x-ray beam is accurate, the result must be within what amount of the control panel setting
When a quality control test is performed to ensure that the penetrating ability of the x-ray beam is accurate, the result must be within what amount of the control panel setting will be ±4 kVp.
What is quality control?
Quality control entails testing units to see if they meet the standards for the final product.
The goal of the testing is to evaluate whether any corrective measures are required in the production process. Good quality control assists businesses in meeting customer needs for improved products.
When a quality control test is performed to ensure that the penetrating ability of the x-ray beam is accurate. The results must be under some limits.
Hence the result must be within what amount of the control panel setting will be ±4 kVp.
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How much mass can be lifted by a weight lifter on the surface of the moon if he can lift 100 kg on the Earth?
Answer:
if u have to find mass then it always constant everywhere that is 100kg but if u have to find weight then it 1/6 of earth .
Explanation:
16.6666
PLEASE HELP QUICK!! A parachute works by increasing the amount of time it takes to bring your
body to a stop. If the impulse is the same, increasing the time will
A)increase the momentum
B)increase the force C)decrease the momentum
D)decrease the force
Answer:
D) decreses the force .... so the guy can land safely :)
Explanation:
A 18 g ball is swung at a 1m long string.It revolves every 1 s,what is the magnitude of swing's tension?
Answer:
The magnitude of swing's tension is 0.71 N.
Explanation:
Given;
mass of the ball, m = 18 g = 0.018 kg
angular speed of the ball, ω = 1 rev/s
radius of the motion, r = 1 m
Angular speed in rad/s is calculated as follows;
\(\omega = \frac{2\pi \ rad}{rev} \times \frac{1 \ rev}{s} \\\\\omega = 2 \pi \ rad/s\)
Linear speed of the ball, v;
v = ωr
v = 2π x 1
v = 2π m/s
The magnitude of swing's tension is calculated as the centripetal force keeping the ball in circular motion.
\(F_c =T = \frac{mv^2}{r} \\\\T= \frac{0.018 \ \times (2\pi )^2}{1} \\\\T = 0.71 \ N\)
Therefore, the magnitude of swing's tension is 0.71 N.
The force required to accelerate a 0.50kg ball at 50 m/s2 is (Remember F=ma) 25N 25K 50N 250N
Answer:
25n
Explanation:
I hope this helps:)
50 x 0.50
The force required to accelerate a 0.50 kg ball at 50 m/s² is 25 N.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Force = mass*acceleration
Force = 50 x 0.50
Force = 25 N
The force required to accelerate a 0.50 kg ball at 50 m/s² is 25 N.
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A sound wave travelling in water has a frequency of 100 Hz. The speed of sound in water is 1482 m/s. Calculate the wavelength of the wave
Semi–conductors are materials that
Semi-conductors are materials that have conductivity between that of a conductor and a non-conductor (insulator).
Example: Silicon
Find the electric energy density between the plates of a 225-μf parallel-plate capacitor. the potential difference between the plates is 390 v , and the plate separation is 0. 202 mm.
The answer is 7.5824885 J/m^3.
Charge of the capacitor:
Q=C*potential difference = 225*10^-6*390=0.08775 C
Area of the plates:
A=(C*distance)/(epsilon)=(225*10^-6*0.298*10^-3 / 8.854 *10^-12 m^2 ) = 7.5728 * 10^3 m^2
E field of the capacitor is computed on the charge per area:
E=Q/(A*epsilon) = 1308733.20186 V/m
Electrical energy density = 0.5*epsilon*E^2= 7.5824885 J/m^3
What is Electrical energy density?
The amount of energy that may be stored in a system or area of space per unit of mass or volume is known as the electric energy density. The formula for energy density "D" is given as D = E V. The system's overall energy is denoted by "E." The volume of the system you are using is represented by "V."To learn more about Electrical energy density visit:
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What is thermal energy.
Explanation:
thermal energy refers to the energy contained within a system that is responsible for its temperature. Heat the flow of thermal energy
How does resistance affect the flow of current in a connecting wire?
Answer:
Resistance affect the flow of current in a connecting wire because there is a direct relationship between the amount of resistance encountered by charge and the length of wire it must traverse. Second, the cross-sectional area of the wires will affect the amount of resistance. Wider wires have a greater cross-sectional area.
Two protons are 1 meter apart. Determine the Fg and Fe. How do the forces of Gravitation and Coulomb’s Law impact the system? Does the force cause the protons to attract or repulse? Is the force always that way or just due to the system being 2 protons? Which Force is larger? By how much?
Answer:
fe
Explanation:
so if the Impact of the system is 2 than it appositive will be fe
Answer:
Explanation:
Given:
q₁ = q₂ = q = +1.6·10⁻¹⁹ C
m₁ = m₂ = m = 1.67·10⁻²⁷ kg
r = 1 m
k =
G = 6.67·10⁻¹¹ N·m² / kg²
k = 9·10⁹ N·m² / C²
__________________
Fg - ?
Fe - ?
Gravitational force of attraction of protons:
Fg = G·m₁·m₂ / r² = G·m² / r²
Coulomb repulsive force of protons:
Fe = k·q₁·q₂ / r² = k·q² / r²
The Coulomb force of repulsion of protons is greater than the force of gravitational attraction of protons:
Fe / Fg = k·q² / (G·m²) = (k/G)· (q/m)²
Fe / Fg = (9·10⁹ /6.67·10⁻¹¹)· (1.6·10⁻¹⁹/1.67·10⁻²⁷ )² ≈ 1,2·10³⁶ times more
SI Prefix Meaning
[unit]
deci-
centi-
nano-
Please no links Just tell me the SI Prefix meaning
A cyclist and bike have a combined weight mass of 99 kg. Show that the combined mass weight is 990N
Answer:mass =99kg force=990N
Explanation:From f=mg where g=10m/s. Therefore f=99*10=990N
Calculate the time needed for a 0.600 kg hammer to reach the surface of the Earth
if dropped from 10.0 m on Earth and on the Moon. The gravitational strength on
the Moon is 1.6 N/kg.
The time needed for the hammer to reach the surface of the Earth is 3.54 s.
Time of motion of the hammer
The time of motion is calculated as follows;
t = √(2h/g)
where;
h is height of fallg is acceleration due to gravityt = √(2 x 10 / 1.6)
t = 3.54 s
Thus, the time needed for the hammer to reach the surface of the Earth is 3.54 s.
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You wish to date a hip bone fragment you found at a cave site.
You find a ratio of 1 14C atoms for every 31 14N atoms. How many
half- lives have elapsed?
To determine the number of half-lives that have elapsed, we need to compare the ratio of 14C to 14N atoms found in the hip bone fragment.
The ratio of 1 14C atom for every 31 14N atoms suggests that the hip bone fragment contains a smaller amount of 14C compared to the expected ratio found in a living organism. Since 14C undergoes radioactive decay with a half-life of approximately 5730 years, we can calculate the number of half-lives that have elapsed by observing how many times the ratio needs to double to reach the expected ratio.
In this case, if the expected ratio is 1:1, then the observed ratio of 1:31 would require five doublings to reach 1:1. Therefore, approximately five half-lives have elapsed since the death of the organism from which the hip bone fragment originated.
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each point from the plot on the right represents an observation of the comet's position in polor coordinates. this information is stored in the 2d numpy array observation data. the values are stored in the first row of observation data and the values are stored in the second row of observation data . 1) you are asked to find the orbit using least-squares methods. consider the linear system that consists of every equation of the form where each is a single data point. find the least-squares solution of this linear system. store the solution numbers in beta and e, respectively. 2) the comet is observed at (radians). how far away from the sun is the comet? store the answer as distance.
we need to solve a linear system to find the least-squares solution of the orbit of the comet and then use the values obtained to find the distance of the comet from the sun when it is observed at a certain angle.
To find the orbit of the comet using least-squares methods, we need to consider a linear system that consists of equations of the form Ax=b, where A is a matrix with every row representing a single data point, x is the vector of unknowns (beta and e), and b is the vector of observations. We can solve this system using the least-squares method to obtain the values of beta and e. Once we have these values, we can use them to determine the orbit of the comet.
To find the distance of the comet from the sun when it is observed at theta radians, we can use the formula r = (beta * (1-e**2))/(1+e*cos(theta)), where r is the distance of the comet from the sun. We can substitute the values of beta and e that we obtained from the linear system into this formula and then substitute the value of theta to get the distance of the comet from the sun. We can store this value as distance.
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a.) The acceptance of a particular scientific theory is determined by scientists who work in that field of study
b.) The general public dtermines which scientific theories are acceptable
c.) When published, scientific theories are accepted completely by all
a) The acceptance of a particular scientific theory is determined by scientists who work in that field of study: This statement is generally true.
b) The general public determines which scientific theories are acceptable: This statement is not entirely accurate.
c) When published, scientific theories are accepted completely by all: This statement is false.
a.) The acceptance of a particular scientific theory is determined by scientists who work in that field of study: This statement is generally true. Scientists play a crucial role in evaluating and accepting scientific theories. They critically analyze the evidence, conduct experiments, peer-review research papers, and engage in scientific discourse to assess the validity and credibility of theories. The scientific community relies on the expertise and consensus among scientists to determine the acceptance of a theory.
b.) The general public determines which scientific theories are acceptable: This statement is not entirely accurate. While public opinion and perception can influence the visibility and popularity of scientific theories, acceptance within the scientific community is primarily based on rigorous scientific evidence and expert evaluation. The general public may have varying levels of understanding and knowledge in specific scientific fields, which can impact their acceptance or rejection of certain theories. However, scientific consensus is typically based on the collective judgment of experts in the field rather than public opinion alone.
c.) When published, scientific theories are accepted completely by all: This statement is false. Scientific theories are not automatically accepted completely by all when published. The publication of scientific theories marks an important step in the scientific process, allowing researchers to share their findings and ideas with the scientific community. However, acceptance of a theory requires rigorous scrutiny, replication of results, further experimentation, and critical evaluation by other scientists in the field. Scientific theories are subject to ongoing refinement, revision, and even rejection based on new evidence and advances in knowledge. The process of scientific inquiry involves continuous questioning, testing, and refining of theories to ensure the most accurate understanding of the natural world.
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the bose? (The weightidensty of water is 62.4 pounds per outec foct.) 7f−lb [0/1 Points] LARCALCET7 7. 5,027Mi
The weight density of water is 62.4 pounds per cubic foot. This value is used to determine the weight of water based on its volume.
The weight density of a substance is a measure of how much weight it has per unit volume. In the case of water, its weight density is 62.4 pounds per cubic foot. This means that for every cubic foot of water, it will weigh 62.4 pounds.
Weight density is an important concept in various fields, such as engineering, construction, and fluid mechanics. It allows us to calculate the weight of water in different scenarios. For example, if we have a tank with a known volume of water, we can use the weight density to determine the total weight of the water in the tank. Similarly, if we know the weight of water in a container, we can calculate its volume by dividing the weight by the weight density.
Understanding the weight density of water is crucial for various practical applications. It helps in designing structures that involve water, such as dams, reservoirs, and pipes, as it provides insights into the forces exerted by the water. Additionally, it is also relevant in fields like hydrology and environmental science, where accurate measurements of water weight are necessary for calculations and analysis.
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Pls HURRY!!
How much force does a soccer goalie experience when stopping a ball With the mass of 0.25 kg that accelerates at the rate of 12 meters per second?
Answer:
fhdfhiffifioo
Explanation:
True or False. The composition of the lining material affects brake operation. Materials that provide good braking with low pedal pressures tend to lose efficiency when they get hot.
The given statement "The composition of the lining material affects brake operation. Materials that provide good braking with low pedal pressures tend to lose efficiency when they get hot." is true. The composition of the lining material indeed affects brake operation.
The composition of the lining material does affect brake operation, and materials that provide good braking with low pedal pressures may indeed lose efficiency when they get hot. This is because heat can cause the lining material to glaze or harden, reducing its ability to create friction and slowing down the vehicle. Materials that provide good braking with low pedal pressures can lose efficiency when they get hot.
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