A car moved a total distance of 120 km in 90 minutes. What was the speed of the car?

Using energy considerations, calculate the average force (in N) a 70.0 kg sprinter exerts backward on the track to accelerate from 2.00 to 9.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.

When you stand by the side of a pool someone swimming underwater appears to be in a different location than she really is the effect is called what

Describe the relationship between the tension and pitch

How does the sun transmit energy from millions of miles away into the Earth system? 'Energy' and 'power' are often confused, but aren't the same.

Which of the following is not the phenomenon whereby polarized light can be produced from unpolarized light? (a) Absorption (b) Reflection (c) Scattering (d) Diffraction.

A light-year is about?

The velocity of a 200 kg object is changed from 5 m/s to 25 m/s in 50 seconds by an applied constant force. a. What change in momentum does the force produced? b. What is the magnitude of the force?

Is it 100% sur than electron have negative charg and proton have pasitive?

The periodic table contains many pieces of information. Which of the following pieces of information does each square contain?

Which will produce a bigger acceleration: a force of 10.0 N acting on a mass of 5.0 kg, or a force of 5.0 N acting on a mass of 10.0 kg?