Answer:
On average a galaxy has, between <u>800 billion and 3.2 trillion planets.</u>
Rolling without slipping means V=rw where w is angular velocity. So 4.0=0.1w
w=40rad/s
Answer: 2.6 daL
Explanation: I just took the test
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Answer:
Most likely A, as energy increases the amplitude increases too.
Answer:
The coefficient of kinetic friction between the puck and the ice is 0.05.
Explanation:
Given that,
Weight of the hockey puck, W = mg = 3.5 N
Acceleration of the hockey puck,
The frictional force opposing the motion of the puck is given by
This force is balanced by the force due to motion of the hockey puck. So,
or
So, the coefficient of kinetic friction between the puck and the ice is 0.05. Hence, this is the required solution.