Which statement best describes what happens during a solar eclipse?
2 answers:
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The correct answer is the following.
The forces that act on the piano are: 2) gravitational force acting on the piano (piano's weight). 5) force of the floor on the piano (normal force). 7) force of Chadwick on the piano.
As we see in the picture that I have attached is Chadwick pushing the piano in a horizontal plane. So Chadwick is applying a force that produces an acceleration. It is his force on the piano plus the acceleration of the weight of the piano, it's a gravitational force. This is pure physics applied to an object.
Answer:
Explanation:
Puck A's initial speed is and move in a direction
after the collision.
# since there's no external force on the system(
#The collision equation can be written as;
The kinetic energies before and after the collision are expressed as:
Let +x along A's initial direction and +y along A's final direction makes the angle
#Substitute in :
Hence, the the speed of puck A after the collision is 12.891 m/s
#. The velocity of A after the collision is;
Substitute into
:
This is the velocity of puck B after the collision, it's speed is:
The velocity of puck B after the collision is 6.8544 m/s
c. The direction of puck B after the collision is:
Hence, the direction of B's velocity after the collision is 62°