A piece of magnetic material that retains its magnetic properties after it is removed from a magnetic field.

The board sandwiched between two other boards shown below weighs 87.5 n. if the coefficient of friction between the boards is 0.

Two energy resources that do not depend on the sun's energy

How does the density of oceanic crust differ that is continental crust why is this difference important

In a certain stereo system, each speaker has a resistance of 4.90. The system is rated at 68.0 W in each channel, and each speaker circuit includes a fuse rated 4.00 A. What is the maximum allowed current for each speaker?

How much time does it take a pulse of light to travel through 150 m of water?

Which actions are evidence that a chemical reaction has occurred? Check all that apply. A: a change in color B: the formation of a precipitate C: a clear liquid becoming cloudy D: a change in shape E: the formation of bubbles F: the formation of

Which sphere forms Earth's outermost layer? Atmosphere Biosphere Cryosphere Hydrosphere

an 100kg object traveling at 50m/s collides (perfectly inelastic) with a 50kg object initially at rest. what is the sum of the momentum of both objects prior to the collision?

A train moves at constant velocity of 50km/h. how far will it move in 0.5h?

Which process best describes part of a scientific investigation? O designing a solution O evaluating the conclusion O evaluating the solution O identifying the conclusion