A ball is thrown straight up from the ground with an unknown velocity. It returns to the ground after 4.0seconds. With what velocity did it leave the ground?

Which statements best describe magnetic fields? Check all that apply.

In a series circuit, each circuit element has the same:a. currentc. capacitanceb. voltaged. resistance

Which of the following materials could have been found in the giant cloud that formed the solar system

What is the relationship between magnetism and potential and kinetic energy

there are two uncharged objects, A and B. some electrons move from A to B. How does the charge of two objects change?

Which of these is the best reason for proper nutrition? A. To ensure that you will be skinny B. To protect yourself against certain diseases C. To improve your intelligence D. To ensure that you will get good grades

And object has a mass of 15g it has a volume of 7.5ml. find the density of the object.

I need this answered quickly. is the branch of science for naming and classifying organisms based on their natural relationships? A-physics B-taxonomy C-genetics D-biology

For a fixed amount of gas, if the absolute temperature of the gas is doubled, what happens to the pressure of the gas?

A 500-kilogram sports car accelerates uni- formly from rest, reaching a speed of 30 me- ters per second in 6 seconds. What distance has the car traveled during the 6 seconds?