How much force is required (in Newton's) to accelerate a 4-kg skateboard, along with its 46-kg rider, at 3m/s2?

What marine life zones are warm well lit and have lots of marine life

Sound travels faster in: steel water sir

A certain pendulum with a 1.00 kg bob has a period of 3.50 s. What will happen to the period of the pendulum if the 1.00 kg bob is replaced by a bob with a mass of 2.00 kg? Briefly explain your answer.

An oscillator creates periodic waves on a stretched string. If the period of the oscillator doubles, what happens to the wavelength and wave speed? a. The wavelength doubles but the wave speed is unchanged. b.

Two skaters collide and grab on to each other on frictionless ice. One of them, of mass 70.0 kg, is moving to the right at 2.00 m/s, while the other, of mass 65.0 kg, is moving to the left at 2.50 m/s.

How tall would a tower need to be if the period of a pendulum were 30. seconds

0.100kg of a nuclear is converted to energy per day. What is the power produced by this fuel?

When do the centre of gravity and center of mass of an object coincide?

Your employer asks you to build a 18-cmcm-long solenoid with an interior field of 5.8 mTmT. The specifications call for a single layer of wire, wound with the coils as close together as possible. You have two spools of wire available.

A block of an unknown metal has a mass of 145 dg and a volume of 2.3 cm3. what is the density of the unknown in units of g/ml?