Kamala puts on inline skates and stands facing a wall. When she pushes against the wall, she rolls backward. Why does pushing harder make her roll faster?

Which quantity is a vector quantity? acceleration mass speed volume

If she asks you to cut a strip of pie crust long around the outside of the pan, how long does it need to be? (Remember c/d = 3.14.)

What is the impulse that a car with a mass of 6kg experiences when its velocity changes from 23m/s to 6m/s? What is the impulse that the wall creates when it applies a force of 29N over a period of 7s in a collision? A ball of clay with a mass of.

You do work on something when you lift if against gravity. Explain how work relates to gravitational potential energy using at least two complete content related sentences. If the lifted object is released, describe the change in energy.

A space probe 2.0 * 1010 m from a star measures the total intensity of electromagnetic radiation from the star to be 5.0 * 103 W>m2. If the star radiates uniformly in all directions, what is its total average power output

What organelle is found in all animal cells and some plant cells

Basic of Archimedes's principle of how fluid can make body to float and sink.

A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force (in N) exerted on a 0.0500 kg bullet to accelerate it to a speed of 625 m/s in a time of 1.10 ms (milliseconds)

Your boss at the Cut-Rate Cuckoo Clock Company wants to save money on materials. You are asked to reduce the balance wheel, which is cylindrical, dimensions to one-third their original values.

Which of the following conditions is not necessary to observe an interference pattern between two sets of waves? A) The waves must have the same wavelength. B) The waves must have a constant phase difference.