What factor determines an object's momentum?

How could you increase a magnet's power without using electricity?

A feather, a marble, and a cannonball are dropped from the same height at the same time. If they were in a vacuum, which one would hit the ground first? O A. The cannonball would hit the ground first. O B. The marble would hit the ground first. O C.

Which of the following statements is true? A. Both chemical reaction rates and nuclear decay rates vary with the conditions of the reaction. B. Nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not. C.

Mike is watching a Disney movie with his son Jason Jason likes the movie so much that he becomes excited and stands in front of the TV mike asked Jason to move so that he can see the TV Jason doesn't move Jason's demonstrating

Consider the following statements: A) The entropy of an isolated system never decreases. B) Heat never flows spontaneously from cold to hot. C) The total thermal energy of an isolated system is constant.

Which of the following are vector quantities? check all that apply. a. time b. displacement c. force d. mass

Imagine you are on a bus with a helium balloon tied on a string tied to the seat in front of you. the bus stops short to avoid running over a rabbit and you are thrown forward. what happens to the balloon in relation to the bus? 1. the balloon pops.

Give one reason why the density of iron is higher than the density of oxygen

In which region of the periodic table do the elements NOT normally react chemically with other elements? A. metals B. metalloids C. nonmetals D. noble gases

A hot air ballon was a mass of 400 kilograms moves across the sky with 3200 joules of kinetic energy. the velocity of the balloon is