Permanent magnets have magnetic fields because of?

Block 1, with mass m1 and speed 3.6 m/s, slides along an x axis on a frictionless floor and then undergoes a one-dimensional elastic collision with stationary block 2, with mass m2 = 0.40m1.

Two 25 kg children are sitting on a merry-go-round that is rotating at 0.10 rad/s. if one child is 1.0 m from the center and the other is 1.5 m from the center, what is their combined angular momentum?

The teacher decided to show the break down of grades received on the the test. what would be the best type of graph to use?

Is hydrogen good conductor or poor conductor

Is Salad dressing a compound?

A unit vector is used in the symbolic representation of the electric field. What physical units does the unit vector have? meters. The unit vector has no units. coulombs. The units depend on how it is used.

What's the definition of streak

The organization of notes into regular groups results in A. some notes sounding more prominent than others. B. all notes lasting for the same amount of time. C. patterns of long and short notes. D. a steady beat.

Sara is sitting in the back seat as her father drives at a constant speed. If Sara's father presses on the brakes quickly slowing the car down, what slows Sara down? A. air resistance on the inside of the car B.

A box of books has lessequalmore inertia than a box of cotton balls.