What is the average speed of an arrow that takes 1.25s to hit a target 75m away

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

What causes the formation of ocean currents?