Car #1 has a mass of 1000 kg and moves with a velocity of 10 m/s north. Car #2 has a mass of 500 kg and moves with a velocity of 10 m/s north.
Compare and contrast Car #1 and Car #2.
A.
Car #1 has 2-times the momentum as Car #2
В.
Car #1 has 4-times the momentum as Car #2
Car #2 has 2-times the momentum as Car #1
D.
Car #2 has 4-times the momentum as Car #1

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2