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shusha [124]
3 years ago
14

Two uniform solid spheres of the same size, but different mass, are released from rest simultaneously at the same height on a hi

ll and roll to the bottom without slipping. Part A Which of the following statements about these spheres are true?
A. Both spheres reach the bottom at the same time.
B. The heavier sphere reaches the bottom ahead of the lighter one.
C. Both spheres arrive at the bottom with the same forward speed.
D. Both spheres arrive at the bottom with the same total kinetic energy.
Physics
1 answer:
SpyIntel [72]3 years ago
4 0

Answer:

options A and C

Explanation:

Since, the spheres are of same size and rotational speed of the sphere are not dependent on their masses. So, both the sphere will reach the bottom of the at the same time with the same speed. But their kinetic energies are different.

So, options A and C are correct.

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Answer:

1 ohm

Explanation:

since there are two identical resistors, one resistor will be

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to calculate the equivalent resistance when in parallel:

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2 years ago
The drawing shows a loudspeaker A and point C, where a listeer is positioned. A second loudspeaker B is located somewhere to the
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Answer: 4.17m

Explanation:

The observer at C will hear a sound on no sound upon whether the interference is constructive or destructive.

If the listeners hears sounds it is caled constructive interference but if he hears no sound its called destructive interference.

So

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Where n=1,3,5

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lamda=5.56m

d2= d1 + nlamda/2

d2= 1 + 5.56/2

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X" =√(y^2 - d2^2)

X"=√(3.78^2 - 0.886^2)

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So therefore the closest that speaker A can be to speaker B so the listener does not hear any sound is X' + X"= 0.5 + 3.67

4.17m

3 0
3 years ago
What is solid matter and can we covert matter into something else
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All matter exists as solids, liquids, or gases. These are called the states of matter. Matter can change from one state to another if heated or cooled. If ice (a solid) is heated it changes to water (a liquid).

Explanation:

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