- If the length of a simple pendulum is increased four times, its time period will

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?