What is the centripetal force

acting on a child if the

centripetal acceleration is 3

m/s2 and the child's mass is 30

kg?

60 N

33 N

90N

10N

The proton from the decay of the neutron is moving at 0.75 c. An observer on the proton measures the radius of the electron as 10 fermi. A Fermi is 10-15 m. What is the radius of the electron measured by someone on the electron?

Two pieces of steel are welded together at a construction site. What best describes the value of Q in this situation?

Which of the following is not an example of an inclined plane? O A. a boat launch ramp O B. a loading ramp O c. a wheelchair ramp O D. a baseball bat

Which waves require a medium for transmission

Compute your average velocity in the following two cases: (a) You walk 85.5 m at a speed of 1.41 m/s and then run 85.5 m at a speed of 4.15 m/s along a straight track. (b) You walk for 1.00 min at a speed of 1.41 m/s and then run for 1.32 min at 4.

If the water cycle is effective why are some areas in the world always short on water?

Low-frequency red light is used in dark rooms because it does not expose the film. This is because the red light has a low

Mark puts an object that has a mass of 58.2kg in a cart that has a mass of 73.00 kg.

two objects are in uniform circular motion at the same speed but at different radii. the ones with the __ radius has the largest centripetal acceleration.

What about a rubber band, can it change its shape? Is it a solid?