What is the smallest element?

An object is moving at a velocity of 30m/s. It accelerations to a velocity of 55m/s over a time of 12.5 m/s. What acceleration did it experience?

A river flows due south with a speed of 1.4 m/s. you steer a motorboat across the river; your velocity relative to the water is 4.7 m/s due east. the river is 660 m wide.

In order to change water from a solid to a liquid, energy must be a. removed b. created c. added d. destoryed

Which waves can travel through both solids and liquids? Which waves can travel only through solids? Which waves can make dramatic ground movements? Which waves can compress and expand the ground like an accordion?

What is the tube that carries air inside a lung?

Which of the following is true A) land heats less rapidly than water B) land heats more rapidly than water C) land reaches higher temperatures than water D) both b and c

What is the upper limit to the mass of a neutron star beyond which neutron degeneracy pressure is unable to withstand the force of gravity and the neutron star is crushed out of existence into a black hole?

What happened to the test charge when brought near another positive charge, and how did you use this fact to score a goal only using positive charges? Explain for both the practice charge and more difficult levels.

You get up in the morning, get dressed, eat breakfast, walk to the bus stop, and ride to school. List three different energy transformations that have taken place.

If you lived by the sea, what effect of the moon would you see? Describe the effect.