What are 5 crystalline solids

A boulder on the mythical planet mongo drops off a cliff and falls from rest 1000 m in 10.0 s. (A) what's the initial speed of the Boulder? (B) determine the acceleration due to gravity on mongo. Ignore friction.

What are the two most important properties of a telescope?

What metal has 28 electrons?

How do you find the change in potential energy

A "conventional gear" tailwheel airplane has the center of mass aft of the two main wheels and a smaller, third wheel at the tail. a "tricycle gear" airplane has the center of mass forward of the two main wheels and the third wheel near the nose.

Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also feels warm to touch.

Which part of the motor is responsible for reversing the flow of current?

In a generator, as the magnet spins, opposite poles of the magnet push the electrons in opposite directions. This back-and-forth movement of electrons is called what? A) revolutions per minute B) direct current C) alternating current.

A train travels at a speed of 30 miles/hour and traveled a distance of 240 miles. How long did it take the train to complete its journey?

What is the mass number of a potassium atom that has 20 neutrons