Which is generated by movements of tectonic plates?

a. seismic waves

b. ocean currents

c. volcanoes

d. earth's magnetic field

A small glass bead has been charged to + 30 nc. part a what is the the acceleration of a proton that is 1.

What could the football players pushing the sled do to make it move quickly

A proton moves around a circular path (radius = 2.0 mm) in a uniform. 25-T magnetic field. what total distance does this proton travel during a 1.0-s time interval? (m = 1.67 x 10⁻²⁷ kg = 1.6 x 10⁻¹⁹ C) A) 82 kmB) 59 kmC) 71 kmD) 48 kmE) 7.5 km

A car travels along a straight line at a constant speed of 60mi/h for a distance d and then another distance d in the same direction at another constant speed. the average velocity for the entire trip is 30.0 mi/h.

A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from rest and is pulled up a mine shaft by a cable connected to a winch. The shaft is inclined at 34.0° above the horizontal.

A company in san francisco uses petroleum products to make plastics arrange the sentence in the correct order to show how the company could be contributing to climate change. 1) Burning fuel realeases greenhouse gases.

In a given medium, all sound waves move: A. in the same direction. B. with the same amplitude. C. with the same frequency. D. with the same speed.

A. 105-kg hockey puck is moving at 49 m/s is caught by a 75-kg goalie at rest. With what speed does the goalie slide on the ice?

A rocket is fired at 100 m/s at an angle of 37, how many seconds is it in the air?

How many miles away is the sun to the earth?