What would a permanently magnetic substance be called?

Suppose a treadmill has an average acceleration of 0.05 m/s2. how much does its speed change after 45 seconds?

When two forces or more forces act on an object, the forces are

A traveler pushes a suitcase 95.2 m with a 17.9 N force directed at 61.3° angle. How much work does she do? Unit = J

A 3 N force pushes on a object for 20 meters. Find the work done

Sound is an example of a wave.

What is a parallelogram

If the force exerted by a canon on a cannonball is equal to the force exerted by a cannonball on a canon why does the cannonball move so much farther than the canon?

A teacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and pH indicator strips, which measure acidity.

What are geothermal heat pumps used for? a. Cooling and heating buildings b. Cooling buildings c. Heating buildings d. Heating water for using in homes

Electromagnetic waves have linear momentum as well as energy. What does this imply about electromagnetic waves?