A simple machine used to raise a flag is a

A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long. The bowler hears the sound of the ball hitting the pins 2.50 sec after the ball is released from his hands.

A book with a mass of 1.5kg was lifted 2 meters. How much work was done

What is a closed loop of wire where charges continuously move

You observe a distant galaxy. You find that a spectral line, resulting from an electron transition in hydrogen, is shifted from its normal location in the visible part of the spectrum into the infrared part of the spectrum. What can you conclude?

What is the moho? a. the boundary between the outer and inner core b. the boundary between the crust and the mantle c. the material of which the mantle is composed d. an area of the mantle that will not transmit seismic waves?

Is it legal in Florida for a math teacher forces the kids to do push ups?

Acceleration is best defined as the rate of change of blank of an object

Zirconium has an atomic number of 40. How many neutrons are there in an isotope of zirconium-92?

If a glass is knocked off of a table that is 1.4m tall, how long does it take for the glass to hit the ground?

Imagine riding On a merry-go-round at the center. As you walk to the outer edge, the merry-go-round slows in order to conserve angular momentum. True or false?