Determine the mass of a ball with a wavelength of 3. 45 x 10^-34 m and a velocity of 6. 55 m/s.

Which best represents the law of conservation of mass ?

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?