A hill is 132 m long and makes an angle of 12.0 degrees with the horizontal. As a 54 kg jogger runs up the hill, how much work does the Niger do against gravity

Which of the following is a possible use for nuclear energy? a. power plants b. weapons c. powering submarines d. all of the above

What are the properties of metal that make it a usful material for electricians

A rocket moves forward with velocity v = 3c/4, with respect to the earth. Inside this rocket, a second, smaller rocket is launched. In the inertial frame of reference where the larger rocket is at rest, the smaller rocket has velocity v = 3c/4.

The radius of a white dwarf is determined by a balance between the inward force of gravity and the outward push of

Two parallel lines are crossed by a transversal. Parallel lines u and w are cut by transversal t. At the intersection of lines u and t, the bottom left angle is 105 degrees.

An electric iron connected to a 110 V source draws 9 A of current. How much heat (in joules) does it generate in a minute?

What is the correct formula for Na + and (SO4) 2 - ? A. Na2SO4 B. Na2 (SO4) 2 C. NaSO4 D. NaSO6

which of the following objects is considered negatively charged A - one with excess electrons on the surface B - one with excess neutrons on the inside C - one with excess protons on the inside D - one with excess protons on the surface

In general, how do the densities of a material in solid and liquid form compare?

Alana summarized what happens when a ball sitting on top of a grassy hill rolls down the hill. The motionless ball has potential energy. Once the ball starts to roll down the hill, new kinetic energy is made.