The earth's magnetic field extends:

A-from the earth's core to outer space

B-from the center of the earth to the sun

C-from the earth's surface to the upper atmosphere

A train travels 90 kilometers in 4 hours, and then 82 kilometers in 1 hours. What is its average speed?

Describe your motion in terms of velocity and acceleration as you ride in a car down the street, come to a red light, wait for the green light and then start off again.

Waht is a nuclar war head

Velocity vs time graph Time (sec) Displacement (m) Velocity (m/s) 0 0 0 0.5 1.25 5 1 5 10 1.5 11.25 15 How is the acceleration related to the time for the data table? A) The acceleration is a constant. B) The acceleration is constantly decreasing.

Identify the medium for each following types of wave •Ocean wave •Earthquake wave •Sound waves from a loud speaker

Monochromatic light passes through two parallel narrow slits and forms an interference pattern on a screen. As the distance between the two slits is decreased, the distance between light bands in the pattern on the screen will a. decrease. b.

The voltage in a battery is 9 volts. The resistance is 3 ohms. What is the current?

What do you call a group of cats?

Justin, with a mass of 30 g, is going down a 8.0 m high water slide. he starts at rest, and his speed at the bottom is 11 m/s. how much thermal energy is created by friction during his descent

Which of the following is NOT a type (shape) of galaxy? Question 3 options: a) triangular b) irregular c) spiral d) elliptical