What would happen to the railway lines in hot weather if there are no gaps in the track?

In order to move a bag of dog food across a room that measures 8 meters in length, you apply 10 newtons of force. How much work was done? a) 2 joules b) 10 joules c) 18 joules d) 80 joules

How do you get over a break up? (I know this has nothing to do with school work but I really need some advice.)

What energy conversion takes place as an arrow is shot from bow?

A pond changes into a field through the process of

What is the similarity between a sea stack and a spit? A. Both are examples of erosion by wind. B. Both are examples of deposition by wind. C. They are formed due to the action of waves. D. They are formed due to the slowing down of waves.

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?