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Using illustrations, explain why a car moves faster to a pedestrian moving in opposite direction than to a bystander

A box is resting on the ground and you can assume its location is the origin of the system. A person applies a westward force of 31.7 Newtons (N) to the box while another applies a northward force of 43.5 N to the box. Determine the total force applied to the box.

Physics : Electromagnetism

if we charge a balloon negatively, it cling to the wall. does it mean that the wall become +vely charge? and why it falls after sometime?

Derive expression for average rate at which energy is transported by a progressive

wave propagating in a medium.

wave propagating in a medium.

Consider N identical masses connected through identical springs of force constant k.

The free ends of the coupled system are rigidly fixed at x = 0 and x = l. The masses

are made to execute longitudinal oscillations on a frictionless table.

i) Depict the equilibrium as well as instantaneous configurations.

ii) Write down their equations of motion, decouple them and obtain frequencies of

normal modes.

The free ends of the coupled system are rigidly fixed at x = 0 and x = l. The masses

are made to execute longitudinal oscillations on a frictionless table.

i) Depict the equilibrium as well as instantaneous configurations.

ii) Write down their equations of motion, decouple them and obtain frequencies of

normal modes.

The steady-state amplitude of a weakly damped forced oscillator is given by

2 2 2 2 2 1/ 2

0

0

[( ) 4 ]

( )

w −w + w

w =

b

f

a

Depict it as a function of frequency and obtain expression for resonance frequency.

Also obtain expression for peak value of steady-state amplitude

2 2 2 2 2 1/ 2

0

0

[( ) 4 ]

( )

w −w + w

w =

b

f

a

Depict it as a function of frequency and obtain expression for resonance frequency.

Also obtain expression for peak value of steady-state amplitude

Establish the equation of motion of a damped oscillator. Solve it for a weakly

damped oscillator and discuss the significance of the results

damped oscillator and discuss the significance of the results

Physics : Other

A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man and chair is 95.0 kg. If the chair legs are circular and have a radius of 0.500 cm at the bottom, what pressure does eachleg exert on the floor

Physics : Other

A satellite revolves in a circular orbit around the earth at a certain height (h) above

it. Suppose that h << R, the radius of the earth. Calculate the time period of

revolution of the satellite

it. Suppose that h << R, the radius of the earth. Calculate the time period of

revolution of the satellite

Physics : Other

Derive expressions for average energy of a body executing SHM.