Classical Mechanics Answers

Two locomotives are 150 meters apart each having a mass of 4.0x10^5 kg. Find the gravitational force that exist between them.

1. two ships , 35 m apart are docked next to each other, one ship weighs 1.9 x 10^8 N while the other weighs 9.7 x 10^7 N. what gravitational force exist between them?

Compute the mass of the earth, assuming it to be a sphere of radius 6.37 x 10^6 m.

Action potential of muscle is initiated by the

impulses arriving from [Best answer ].

A. motor neurons

B. Sensory neurons

C. Interneurons

Bone electricity is due to [Best answer ]

A. the piezoelectric effect of crystalline

material in the bone.

B. the ion motion across bone membrane.

C. neuronal activities passed onto the bone.

D. the muscles attached to the bone.

A sound wave travelling at 350 m/s has a frequency of 500 Hz. what is it wavelength?

the quartz crystal used in electric watch vibrates with frequency 32.768 Hz what is the period of the crystal motion?

A low - frequency radio wave has a frquency of 250.000 Hz what is the wavelength of this radiowave? (Hint dont forget that is an electromagnetic wave. and therefore you should automatically know its speed.)

A wave with a frequency of 300 per second travels from water in which its velocity is 1450 m/s to air which its velocity is 331.5 m/s. Calculate the wavelengths in each medium

A longitudinal wave of frequency 100Hz has a wavelength of 11 m Find the speed of propagation.