In the diagram, which is demonstrated by arrow 3?
a.
liquid water moving along the surface
b.
water vapor condensing into liquid water in the atmosphere
c.
liquid water evaporating from the surface to the atmosphere
d.
liquid water moving from the atmosphere to the surface

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.