What is the potential energy of the ball as it is half way through the fall, 20 meters high? il mark brainliest

A supersonic jet flies 10 miles in 0.008 hours. How fast is the jet moving

Write an expression for the relationship between the spring constant and the displacement of an object hanging from a spring. do the same for the displacement of the spring when the object is compressing the spring.

Why am I not as flexible as my baby sister?

A ray of red light in air is incident at an angle of 30. on a boundary with olive oil. What is the angle of refraction, to the nearest degree, for this light ray in the olive oil? a 60 § 20 C 30° x do e 47

Crystal is trying to get in shape for softball season so she takes a hip pop dance class at the gym for 45 minutes three days a week she wears a heart rate monitor and finds that her heart rate reaches one 25 bpm but her target heart rate zone is

Describe the factors that form deep currents

A comet is cruising through the solar system at a speed of 50000 kilometers per hour for 4 hours time. What is the total distance traveled by the comet during this time in kilometers, miles, and light years?

A gas in a closed container is heated with 12J of energy, causing the lid of the container to rise 3m with 5N of force. What is the total change in energy?

What are illuminated objects?

During one year a population of blue jays has zero population growth. which must be true about the blue jay population at the end of the year compared to the beginning of the year?