A boy pushes on a wagon so that it accelerates at a rate of 0.50 m/s2. The wagon has a mass of 24 kg. What is the magnitude of the boy's pushing force? (Ignore frictional effects.) 12 N, 12 kg, 48 N, or 48 kg
Answers
The magnitude of the boy's pushing force is equal to 12 N. Therefore, option A is correct.
What is force?
Force acting on a system can be described as the effect that can change the state of the body of motion or rest. The SI measurement unit of force is Newton (N) and force can be described as a vector quantity. Force can change the direction or the speed of the moving object.
The force can be evaluated from the multiplication of the mass (m) with acceleration (a) of an object. The mathematical second law of motion can be used for force:
F = ma
Given, the rate of acceleration of a wagon, a = 0.50 m/s²
The mass of the wagon, m = 24 kg
The magnitude of the boy's pushing force can be calculated as:
F = 0.50 ×24
F = 12 N
Therefore, the magnitude of the pushing force applied by the boy is equal to 12 N.
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No matter if system that you are observing is 2D or 3D or higher (which is imaginery) pythagoras theorem will be applied.
Formula for determining magnitude is:
Number of turms inside square root you take depending on dimension of your system.
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One of the type of voice that could produce a pitch that has a speed of 343 m/s and a wavelength of 0.68 m would be soprano
hope this helps
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So far we have been emphasizing how, at a fundamental level, the generation and propagation of gravitational and electromagnetic radiation are basically quite similar. This is a major point in demystifying gravitational waves. But, on a more practical level, gravitational and electromagnetic waves are quite different: we see and use electromagnetic waves every day, while we have yet to make a confirmed direct detection of gravitational waves (which is why they seemed so mysterious in the first place).
There are two principal differences between gravity and electromagnetism, each with its own set of consequences for the nature and information content of its radiation, as described below.
Gravity is a weak force, but has only one sign of charge.Electromagnetism is much stronger, but comes in two opposing signs of charge.
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Answer:
1) Gravitational force and electromagnetic force both are field forces which means both forces exerted from long range of distance and we do not require any physical contact to apply these type of forces.
2) Now we also know that
both the forces are inversely depends on the square of the distance between two charges or two masses
so both forces follow inverse square law.
Now two ways they are alike is
1) gravitational force never exist in form of repulsive force while electromagnetic force is either repulsive or attractive.
2) Gravitational force is independent of the medium between two masses while electromagnetic force is dependent on the medium between two charges
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C. A cold and dry day with a wind moving in the same direction as the sound
D. A cold and humid day with no wind
Answers
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Solute.
Hopes this helps you all. Good luck with the rest of the test!