Michael F.

A horizontal clothesline is tied between 2 poles, 10 meters apart. When a mass of 4 kilograms is tied to the middle of the clothesline, it sags a distance of 1 meters. What is the magnitude of the... more

Determine the value of h such that the matrix is the augmented matrix of a consistent linear system. 3 -7 | h-12 28 | 6h = ????

A person jogs eight complete laps around a 400-m track in a total time of 14.5 min. Calculate (a) the average speed and (b) the average velocity, in m/s.

A bird can fly 25 km/h. How long does it take to fly 3.5 km?

You drop a rock off a bridge. When the rock has fallen 4 m, you drop a second rock. As the two rocks continue to fall, what happens to their velocities?(a) Both increase at the same rate.(b) The... more

Can an object have zero velocity and nonzero accelera- tion at the same time? please give examples.