Multiply the quantity to be converted by the conversion factor. In this problem, the car's speed is the quantity to be converted.
v = 56.5
mi
h

1.609 km
1 mi

Calculate the final answer.
What is the speed of the car in units of
km/h?

90 km/h

90.9 km/h

90.91 km/h
none of the above

The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory

If a simple machine reduces the strength of a force, what must be increased?

Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.