Mechanical waves require a medium to transfer their energy which of the following is a mechanical wave?

surface wave

radio waves

microwaves

light waves

What is the simple average of these two velocities (0m/s, 0.4m/s)

How is plasma different from other phases of matter?

What particles make up a plasma of hydrogen?

An airplane flies 12 m/s due north with a velocity of 35.11 m/s. how far east does it fly?

The geologic time scale originally ordered earth's rocks by

A constant force is exerted for a short distance on a block of mass that is initially at rest on a horizontal frictionless plane. This force gives the block a certain final speed v.

A football quarterback is moving straight backward at a speed of 3.00 m/s when he throws a pass to a player 20.0 m straight downfield. (a) if the ball is thrown at an angle of 25.

Simone is walking her dog on a leash. The dog is pulling with force of 34 N to the right and simone is pulling backward with a force of 16 N

An object moves with velocity v (t) = t^2-8t+7 a) write a polynomial expression for the position of the particle at any time t greater or equal to zero.

Is a lack of thorns a mutation? (on a plant)