What type of mechanical wave needs a source

Which muscle disorder does donna's doctor diagnose? donna is suffering from leg pain in which the calf muscles contract involuntarily. donna's doctor diagnoses her wit

How are breeder reactors different from nuclear reactors

If you treat an electron as a classical rigid sphere with radius 1.70*10-17 m and uniform density, what angular speed ω is necessary to produce a spin angular momentum of magnitude 3/4---√ℏ? Use h = 6.

A car is moving from rest and the velocity increases to 30 m/s in 4 seconds. Calculate its acceleration.

19) A small car and a large truck are driving down a highway, which statement would support the premise that the truck has more momentum? A) A large truck has a much larger mass. B) A car has a smaller engine than a truck.

if 100 grams is equal to 1 newton of force, and the water displaced by an object would have a mass of 40 grams, what is its buoyant force on that object?

A charge if 2 nC is placed 10cm to the right of a conducting sphere with a diameter of 2 cm. A charge of 5 nC is placed 10 nC to the left of the same sphere. determine the charge at the center of the sphere.

1) How is chemical energy transformed into potential energy?

A double-paned window has two glass panes separated by a layer of air. Why is air, rather than glass, used to fill this space?

To determine waves frequency you must know the what