A hopper jumps straight up to a height of 1.3 m. With what velocity did he leave the floor

How are light years used to measure distances in the universe

An example of something that is biodegradable is a leaf in a compost pile. a. True b. False

Question 8 Unsaved Which of the following is true about magnetic poles? Question 8 options: Like poles repel each other, and opposite poles attract each other. Opposite poles repel each other. Like poles attract each other.

7 E-8, 7 E8, 7 E-4 write the full number aka standard notation

Under what conditions would a scale record a weight for an object which is equal to the magnitude of the gravitational force on the object?

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?