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The vector sum (magnitude only) of 25.0 m, north and 18.0 m, East is ___ m.

A stone is thrown vertically upward with an initial speed of 19.5 m/s. It will rise to a maximum height of:

When a football in a field goal attempt reaches its maximum height, its speed is

A car travels at 15 m/s for 10 s.  It then speeds up with a constant acceleration of 2.0 m/s2 for 15 s.  At the end of this time, what is its velocity?

An automobile is moving at 120 km/h. What is its speed in m/s ?

Write the number 13.5 gigameters as full (decimal) numbers with standard units.

What is the result of 1.58÷3.793 using significant figures?

The radius of the Earth is 3963 mi. What is the surface area of the Earth in square meters? (1 mi = 1609 m.)

If an object moves with constant acceleration, its velocity must

An airplane increases its speed from 100 m/s to 160 m/s, at the average rate of 15 m/s2.  How much time does it take for the complete increase in speed?