What is the name for the distance between the earth and the sun?

7. What do mechanical waves require in order to transfer energy?

A star has a spectrum shift exhibiting a red shift. What can you conclude about the distance from earth to that star

A solenoid is built with 870 turns uniformly distributed over a length of 0.390 m to produce a magnetic field of magnitude 1.00 * 10-4 T at its center. What is current necessary for this to happen? 17.4 mA 35.7 mA 74.9 mA

3. A 2,000-kilogram car uses a braking force of 12,000 newtons to stop in 5 seconds. a. What impulse acts on the car? b. What is the change in momentum of the car? c. What is the initial speed of the car?

An archer wants to hit a target that is dropped from a tower. At the sound of a horn, the archer is to shoot an arrow; at the same instant, the target will be dropped.

Which of the following is created by fans? a) Air flow b) Water flow c) Wastewater flow d) Vacuum flow

What are 3 wether instuerments i know anemometer and barometer but the third one and what there job! wlep

Moving 4.0 coulombs of charge through a circuit requires 48 joules of electric energy. What is the potential difference across this circuit? (1) 190 V (3) 12 V (2) 48 V (4) 4.0 V

North poles of magnets attract each other. true or false

An unstable particle is created in the upper atmosphere from a cosmic ray and travels straight down toward the surface of the earth with a speed of 0.99537 c relative to the earth.