A cross country skier can complete a 7.5km race in 45 minutes. What is the skier's average speed?

A scientist is studying a shock wave from an earthquake. What kind of wave is being studied? an electromagnetic wave a gamma ray a radio wave a mechanical wave

Which choice can be defined as the space around any charged particle that is directed away from a positive charge and towards a negative charge? gravitational field magnetic field proton field electric field

Explain why the motto "Do whatever it takes to win!" may not be an ethical guideline to follow.

Explain how a pile of ashes has the same mass as the original log before it was burned. What is the law that defines this

Can an object have both kineric energy and potential energy at the same time?

2. What was the role of women as industry increased? A. They gained the vote, B. They became industry leaders, e. They led the household D. They can for government office,

A 26-g steel-jacketed bullet is fired with a velocity of 630 m/s toward a steel plate and ricochets along path CD with a velocity 500 m/s.

A small boat is carrying four people across a river. Without any paddling, the boat moves downstream at a steady speed of 5 m/s. If the average weight of the four people is 60 kg, then what is the speed of the boat after one person gets?

Does temperature affect the dissolving phase?

In a clear, coherent, paragraph-length answer, explain why the speed of the apple half way between the release and the maximum height is not half the initial speed.