Sierra did 500 J of work to move her couch. If she exerts 250 N of force on the couch, how far did she move it? (Work

Fd)

0.5 m

2 m

250 m

750 m

If the mass of a material is 47 grams and the volume of the material is 15 cm^3, what would the density of the material be?

A train starts from its station and it velocity reaches 200m/s in 5 seconds. What is its acceleration? a. 400m/s b. 40m/s2 c. 4.5m/s2 d. Initial velocity is missing

Which shows a decrease in fluid pressure? A. A fan is turned from high speed to low speed. B. Oxygen is compressed as it is put into a pressurized tank. C. Water in a creek slows down as it enters a slow-moving river. D.

Molecular motion stops at what °f

If they were all moving at the same velocity, which of the following objects would have the most momentum? Question 2 options: baseball motorcycle truck skateboard

a minibus drives 238 miles with a constant speed of 84 mph and another 80 miles with a constant speed of 60 mph. how much time in total does it take to travel these distance?

If the volume of a container increases, then the pressure will: A. first increase and then decrease. B. increase. C. stay the same. D. decrease.

How does the theory of natural selection explain the diversity of life?

What law states that when matter undergoes a physical or chemical change, no atoms are created or destroyed?

Which statement would be a valid argument in favor of using nuclear power? There are few negative impacts from mining the fuel. Reactors are safe from natural disasters. There are little to no waste products from fission.