A spaceship has a momentum of 20,000 kg-m/s to the left and a mass of 500 kg. What is the magnitude of its velocity?

When a circular plate of metal is heated in an oven, its radius increases at a rate of 0.01 cm divided by min. At what rate is the plate's area increasing when the radius is 41 cm?

what is your opinion of the balance of nature hypothesis

Describe a situation when a pulley has kinetic energy

Suppose a train engine is pulling ten cars. The last car becomes separated from the train. What happens to the motion of the rest of the train and why?

Is a snowball melting in my hand? convection, conduction, radiation Which one?

Which of these changes does a submarine encounter as it returns from the bottom of the ocean to the surface of the ocean? a. the amount of sunlight increases. b. the water temperature decreases. c. the amount of plants decreases. d.

Why do some elements have symbols that don't use letters in the element's name?

How many (whole number of) 91 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton? A metric ton is 1.000 * 103 kg. Answer in units of people.

What are the two types of surface waves? How are they different and which one would cause more damage? Explain.

What causes a regular reflection?