A car accelerate from 0 to 20 m/sec in 10 seconds. Calculate the acceleration

4. If the frequency of an electromagnetic wave is 600 000 000 Hz, what is its wavelength?

True or false ohm's law states that I = R/V?

Rob wants to work out how much energy his blue spotlights use. He turns the lights on at 9:00 am and leaves them on until 10:30 am, taking an electricity meter reading before and after. The spotlights have a total power of 0.1 kw.

Which of the following is an accurate description of the relationship demonstrated in Ohm's Law? A. The electric potential (amperes) divided by the resistance (ohms) equals the current (volts). B.

A cross country runner runs 20 km in 4 hours. what is his average speed

Consider a helium balloon on a string tied to the seat of your stationary car. The windows are closed, so there is no air motion within the car. The car begins to accelerate forward. Which way will the balloon lean, forward or backward

The force of gravity acts upon meteors from the rocky asteroid belt between mars and Jupiter. Where is the force of gravity most likely to pull these meteors

Sally turns on her cellular telephone to speak to her friend who is located thousands of miles away. Which of the following best describes how such a telephone is able to transmit and receive information? A.

Calculate the gravitational potential energy relative to the ground when an 82 kg person climbs to the top of a 2.0 m stepladder.

A rock is thrown from a cliff and hits the ground five seconds later at a distance of 50 m from the cliff how high was a cliff