How much force is needed to stop an 80-kg football player if he decelerates at 5 m/s2? 5 N 16 N 20 N 400 N

9) This is an attractive force between any two objects due to mass.

A car that weighs 1.5 * 10^4 N is initially moving at a speed of 36 km/h when the brakes are applied and the car is brought to a stop in 17 m.

How far above Earth's surface do Gamma Waves reach?

A parallel-plate capacitor consists of plates of area 1.5 x 10^-4 m^2 separated by 2.0 mm The capacitor is connected to a 12-V battery. How much energy is stored in the capacitor? (a) 4.8 x 10^-11 J (b) 2.8 X 10^-11 J (c) 1.8 x 10^-11 J d) 4.

What happens to the frequency of a wave of you increase the speed of the wave?

What is the importance of the ozone layer?

Which of the following is an example of plasma?

What do you need to make 100 minutes charges neutral

The equation e = mc2 relates mass and a. energy b. force c. work d. gravity

What should a scientist do to use scientific methods for determining the relative age of Earth's rocks? A be biased in opinion B disregard views of others C use creative ideas D prove that methods are non-testable