A 21 kg child is riding a 5.9 kg bike with a velocity of 4.5 m/s to the northwest.

a. What is the total momentum of the child and the bike together?

b. What is the momentum of the child?

c. What is the momentum of the bike?

Which of the following would you describe as a change in state? A) melting ice B) burning paper C) film being exposed to light D) a piece of paper being cut in half

A thug pushes some 100 kg punk with 300 N of force. How much is the punk accelerated?

Technician A says that the pressure differential switch may need to be re-centered after bleeding the brakes. Technician B says that there are several types of pressure differential switches, and each requires a different method of re-centering.

A child sits on the edge of a spinning merry go round that has a radius of 1.5. The child's speed is a 2m/s. What is the child's acceleration?

In order for work to take place

Which of the following has more inertia: (a) a rubber ball and a stone of the same size? (b) a bicycle and a train? (c) a five-rupees coin and a one-rupee coin?

In a laboratory, you determine that the density of a certain solid is 5.23*10-6kg/mm3. Convert this density into kilograms per cubic meters.

List the solar objects in correct order from the Sun. Venus Earth Mercury Saturn Neptune Mars Jupiter Asteroid Belt The Sun Uranus

The power exerted by a muscle is the product of the force exerted and the velocity of contraction. The area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?

How can you tell one element from another?