A worker uses a cart to move a load of bricks a distance of 10m across a parking lot. if he pushes the cart with a constant force of 209 N, what amount of work does he do?

Is 'velocity'the displacement of an object during specific unit of time?

8. What is the wavelength of a sound wave that has a speed of 250 m/s and a frequency of 400 Hz? 9. What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 2.0 m? 10.

How can you make work output of a machine greater than the work input?

What is the emf produced in a 1.5 meter wire moving at a speed of 6.2 meters/second perpendicular to a magnetic field of strength 3.96 * 10-3 newtons/amp·meter?

According to the humanist perspective what motivates individuals

A hot-air balloon is ascending at the rate of 14 m/s and is 84 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?

Now assume that the pitcher in Part D throws a 0.145-kgkg baseball parallel to the ground with a speed of 32 m/sm/s in the + x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight line.

How far away is a cliff if an echo is heard 0.486 s after the original sound? Assume that sound traveled at 343 m/s on that day.

Rafael swings a baseball bat with a force of 25 N. The baseball bat exerts a force of 5 N on the baseball. What is the mechanical advantage of the baseball bat? The mechanical advantage of the baseball bat is

Minerals such as sulfur can sometimes be identified by colors, true or false.