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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?

The airplane shown is in level flight at an altitude of 0.50 km and a speed of 150 km/h. At what distance d should it release a heavy bomb to hit the target X? Take g = 10 m/s 2.  

The silicon chip in a microelectronic component has a mass of 1.37×10−3 kg. To complete the wiring, 6.79×10−5 kg of solder is added to the chip. Compute the final mass of the circuit.    

A person jogs eight complete laps around a quarter-mile track in a total time of 12.5 min. Determine the total distance in meter (1 mile = 1609 km)

A boy on the edge of a vertical cliff 20m high throws a stone horizontally outward with a speedof 20m/s. It strikes the ground at what horizontal distance from the foot of the cliff? Use g = 10m/s2.