Joanne drives her car with a mass of 1000 {/rm kg} at a speed of 23m/s.

Find a road friction force that is need to bring her car to a halt in 14s.

Jacques and george meet in the middle of a lake while paddling in their canoes. they come to a complete stop and talk for a while. when they are ready to leave, jacques pushes george's canoe with a force f? to separate the two canoes.

Coffee is draining from a conical filter into a cylindrical coffee pot at a rate of 16? 3 / min. Both the conical filter and cylindrical coffee pot are 8 inches across and 8 inches deep.

A system does 506 kj of work, and loses 266 kj of heat to the surroundings. what is the change in internal energy of the system?

What is the relationship between resistance and current in a circuit

Who first conceived the idea of daylight saving time and when

A star has a mass of 1.36 x 1030 kg and is moving in a circular orbit about the center of its galaxy. the radius of the orbit is 2.1 x 104 light-years (1 light-year = 9.5 x 1015 m), and the angular speed of the star is 1.1 x 10-15 rad/s.

Floating in deep space, you find yourself at rest next to a small asteroid. You reach out and tap the asteroid with a hammer. What happens to you in this process?

You walk forward at 1.5 m/s for 8s. Your friend decides to walk faster and starts out at 2.0 m/s for the first 4 s. Then she slows down and walks forward at 1.0 m/s for the next 4s. Make a distance-time graph of your motion and your friend's motion.

If the coolant in a refrigerator was not compressed back into a liquid after it flowed through the refrigerator what would happen

A electric model train travels at 0.339 m/s around a circular track of radius 1.75 m. How many revolutions does it perform per second, i. e, what is the motion's frequency?