A child on a spinning playground ride is (36 m from the center of the ride. The centripetal force on the child is 19 N.

What is the mass of the child if the child has a tangential

speed of 0.54 m/s?

3.7 kg

13 kg

23 kg

79 kg

What does it mean to say that in any system the total energy score stays the same

suppose you had two socks sticking together in the clothes dryer from static electricity. what happens if they are spun gently?

What should you do immediately if a boat motor catches fire?

Which statement correctly describes why a compound is a pure substance?

A car drives over a hilltop that has a radius of curvature 120 m at the top of the hill. at what speed would the car be traveling when it tires just barely lose contact with the road when the car is at the top of the hill?

Use combustion by moving pistons which respond to a change in pressure

If q1 is 2μC, q2 is 5μC and r1 = 0.2m, then the force between the charges is

On a weather map places that have the same temperature are joined with lines called

Which of the following generally speed up a reaction? A. increasing the activation energy B. removing any catalysts C. adding more heat D. shaking the container holding the reaction

Cual es el peso de 5L de un fluido que tiene una densidad 3.5 veces mayor que la del agua?