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How much water a pump of 2 kW can raise in one minute to a height of 10 m
24
Aug
How much water a pump of 2 kW can raise in one minute to a height of 10 m How much water a pump of 2 kW can raise in one minute to a height of 10 m August 24, 2020 Category: Chapter 7 - Work, Energy and Power , NEET Last 32 Years Solved [...]
When the load on a wire is increasing slowly from 2 kg to 4 kg, the elongation increases from 0.6 mm to 1 mm. The work done during this extension of the wire is (g=10m/s 2 ).
24
Aug
When the load on a wire is increasing slowly from 2 kg to 4 kg, the elongation increases from 0.6 mm to 1 mm. The work done during this extension of the wire is (g=10m/s 2 ). the elongation increases from 0.6 mm to 1 mm. The work done during this extension of the wire [...]
The displacement of the medium in a sound wave is given by the equation y 1 =Acos(ax+bt) where A,a & b are positive constants. The wave is reflected by an obstacle situated at x=0. The intensity of the reflected wave is 0.64 times that if the incident wave. (a) What are the wavelength and frequency of the incident wave ? (b) Write the equation for the reflected wave. (c) In the resultant wave formed after reflection, find the minimum value of the particle speed in the medium?
24
Aug
The displacement of the medium in a sound wave is given by the equation y 1 =Acos(ax+bt) where A,a & b are positive constants. The wave is reflected by an obstacle situated at x=0. The intensity of the reflected wave is 0.64 times that if the incident wave. (a) What are the wavelength and [...]
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The displacement of the medium in a sound wave is given by the equation y 1 =Acos(ax+bt) where A ,
The figure shows a snap photograph of a vibrating string at `t = 0`. The particle `P` is observed moving up with velocity `20sqrt(3) cm//s`. The tangent at `P` makes an angle `60^(@)` with x-axis. ,
A source of sound is moving along a circular orbit of radius 3m with an angular velocity of 10 rad/sec. A sound detector located far away from the source is executing S.H.M. along the line with an amplitude 1m. The freuency of oscillation of the detector is 5 per sec. The source is at the point A when the detector is at the point B. If the source emits a continuous sound wave of frequency 340 Hz, the minimum and maximum frequency recorded by the detector (velocity of sound in air = 330 m/s)
24
Aug
A source of sound is moving along a circular orbit of radius 3m with an angular velocity of 10 rad/sec. A sound detector located far away from the source is executing S.H.M. along the line with an amplitude 1m. The freuency of oscillation of the detector is 5 per sec. The source is at the [...]
A machine gun is mounted on the top of a tower of height h=100 m. At what angle should the gun be inclined to cover a maximum range of firing on the ground below ?The muzzle speed of the bullet is u=150ms−1 and g=10ms−2 .
24
Aug
A machine gun is mounted on the top of a tower of height h=100 m. At what angle should the gun be inclined to cover a maximum range of firing on the ground below ?The muzzle speed of the bullet is u=150ms−1 and g=10ms−2 . A particle is projected with velocity 2 gh so [...]
A bus is moving on a straight road towards north with a uniform speed of 50 km/hour turns through 90 degree. If the speed remains unchanged after turning, the increase in the velocity of bus in the turning process is
24
Aug
A bus is moving on a straight road towards north with a uniform speed of 50 km/hour turns through 90 degree. If the speed remains unchanged after turning, the increase in the velocity of bus in the turning process is A bus is moving on a straight road towards north with a uniform speed of [...]
A particle is projected with velocity 2 gh , so that it just clears two walls of equal height h which are at a distance of 2h from each other. Find the time of passing between the walls.
24
Aug
A particle is projected with velocity 2 gh , so that it just clears two walls of equal height h which are at a distance of 2h from each other. Find the time of passing between the walls. A particle is projected with velocity 2 gh so that it just clears two walls [...]
A light string is tied at one end to a fixed support and to a heavy string of equal length L at the other end as shown in figure. A block of mass m is tied to the free end of heavy string. Mass per unit length of the strings are mu and 9mu and the tension is T. Find the possible values of frequencies such that junction of two wire point A is a node.
24
Aug
A light string is tied at one end to a fixed support and to a heavy string of equal length L at the other end as shown in figure. A block of mass m is tied to the free end of heavy string. Mass per unit length of the strings are mu and 9mu and [...]
A bullet is fired with a speed of 1000 m/sec in order to penetrate a target situated at 100 m away. If g=10m/s^2, the gun should be aimed
24
Aug
A bullet is fired with a speed of 1000 m/sec in order to penetrate a target situated at 100 m away. If g=10m/s^2, the gun should be aimed A bullet is fired with a speed of 1000 m/sec in order to penetrate a target situated at 100 m away. If g=10m/s^2 the gun should be [...]
A ball starts falling with zero initial velocity on to a smooth inclined plane forming an angle α with the horizontal. Having fallen a distance h, the ball rebounds elastically off the inclined plane. At what distance from the impact point will the ball rebound for the second time ?
24
Aug
A ball starts falling with zero initial velocity on to a smooth inclined plane forming an angle α with the horizontal. Having fallen a distance h, the ball rebounds elastically off the inclined plane. At what distance from the impact point will the ball rebound for the second time ? A ball starts falling with [...]