A 750-newton person stands in an elevator that is

accelerating downward. The upward force of the

elevator floor on the person must be

(1) equal to 0 N (3) equal to 750 N

(2) less than 750 N (4) greater than 750 N

When a car crashes, do you think its speed can make a difference in the amount of damage done?

Which expression allows you to determine the mechanical advantage of an inclined plane? A. height of plane / input force B. length of plane / input force C. length of plane / height of plane D. height of plane / length of plane

Write the equation for determining the power of something?

In what type of wave do the particles in the medium experience forces parallel to the wave's direction?

Which are ways how top soil might be lost? Check all that apply. wind erosion water erosion plowing desertification overuse

I am looking for this answer : Which shows a correct order of steps in the scientific method? develop a hypothesis, analyze data, make observations, draw conclusions make observations, draw conclusions, develop a hypothesis, analyze data.

A gas in a piston is compressed doing - 439 j of work, and its internal energy increases by 318 j. how much heat flows? (be careful with + and -. + w = expansion. + q = added, + u = temp goes up) (unit = j)

A loop of wire is placed in a uniform magnetic field. (a) For what orientation of the loop is the magnetic flux a maximum? The plane of the loop is perpendicular to the magnetic field. The plane of the loop is parallel to the magnetic field.

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.

Stephen buys a new mop he travels 3 km south and the. 4 km east and then 3km north how far does he need to go to get back. To where he started