Most geologists think that the movement of Earth's plates is cause by

a) conduction

b) earthquake

c) convection currents in the mantle

d) earth's magnetic field

Which device uses AC current to operate? A. locomotive train B. desktop computer C. car D. portable media player E. flashlight

Explain how do winds cause surface currents?

A speeder traveling at 50 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 1.64 m/s2. To the nearest tenth of a second how long does it take the policeman to catch the speeder?

How does uneven heating of Earth's surface result in air movement?

A cyclist rides her bike 7 mi east, and then 2 mi north before taking a break. Then she rides 5 mi east and then 3 mi north. What are the magnitude and direction of the cyclist's resultant displacement? magnitude: 13.0 mi; direction: 22.

When experiencing loss in your life, you are likely to experience grief, but not stress True or False

What is the specific heat of wood?

A certain wave motion has a frequency of 10 cycles / s and a wavelength of 3 m. so its propagation speed is

The planet earth orbits around the sun and also spins around its own axis. 33% part (a) calculate the angular momentum of the earth in its orbit around the sun in kg • m2/s

An electron experiences a magnetic force of magnitude 4.60 x 10^-15 N when moving at an angle of 60.0° with respect to a magnetic field of magnitude 3.50 x 10^-3 T. Find the speed of the electron.