The force pushing down is the force of Gravity. On a chair it is in perfect balance with the force pushing up (the normal force)
in terms of magnitude
FN = FG = mg
the forces are in opposite direction
hope this helps
It should be S since S stands for students. Giving the team with more members the upper hand. Hope this helps.
Answer:
B. When the ball is released, the thrower's arm transfers its energy to the ball.
Answer:
It will not change
Explanation:
The period of oscillation of a mass-spring system is given by

where
T is the period
m is the mass hanging on the spring
k is the spring constant
As we see from the formula, the period of oscillation does not depend on the amplitude of the motion: therefore, if we change the amplitude, the time for one oscillation will not change.
It’s 10 joules. W=FD, W=5•2=10