Classical Mechanics Answers

​1 kg block vibrates in shm with amplitude of 15 cm and period of T = 2 s find the frequency, its maximum speed and its speed

when the displacement is 5cm, its maximum acceleration when the displacement is 5cm.

determine the force of gravitational attraction between the earth 5.98 x 10^24 kg and a 70 kg boy who is standing at sea level, a distance of 6.38 x 10^4 in from earth's center.

A particle A of mass m moves on a smooth horizontal table and is connected by a light

inextensible string passing through a smooth hole O in the table to a particle B of the

same mas; m, which moves along the vertical through O. Initially B is at rest and a is the

distance from A to O, moving with velocity "sqrt{ga\/3}" perpendicular to O A.

What is the kinetic energy of the system?

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?