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BidishaKashayap1333
@bidishakashayap1333
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Joined: Oct 11, 2021
Last seen: Jul 27, 2023
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Topics: 2174 / Replies: 0
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Topic
Which of the following cannot transmit sound? Water, vacuum, aluminium, oxygen gas
4 years ago
Forum
Sound
Replies: 0
Views: 175
Topic
Name one solid, one liquid, and one gas through which sound can travel.
4 years ago
Forum
Sound
Replies: 0
Views: 234
Topic
Name the type of waves which are used by astronauts to communicate with one another on moon.
4 years ago
Forum
Sound
Replies: 0
Views: 210
Topic
Can sound travel through vacuum?
4 years ago
Forum
Sound
Replies: 0
Views: 65
Topic
Can sound travel through (a) iron (b) water?
4 years ago
Forum
Sound
Replies: 0
Views: 56
Topic
A stone is thrown upwards as shown in the diagram. When it reaches P, which of the following has the greatest value for the stone?
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 137
Topic
Which of the following does not possess the ability to do work not because of motion?
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 251
Topic
A girl weighing 400 N climbs a vertical ladder. If the value of g be 10 m/s^2, the work done by her after climbing 2 m will be
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 132
Topic
Each of the following statements describes a force acting. Which force is causing work to be done?
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 212
Topic
The momentum of a bullet of mass 20g fired from a gun is 10 kg.m/s. The kinetic energy of this bullet in kJ will be
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 240
Topic
Water stored in a dam possesses (a) no energy (b) electrical energy (c) kinetic energy (d) potential energy
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 133
Topic
The work done on an object does not depend on the
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 95
Topic
A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. If the value of g be 10 m/s^2, the work done by the girl
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 165
Topic
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass 3.5 kg, Both the spheres are dropped simultaneously from a tower.
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 186
Topic
In case of negative work, the angle between the force and displacement is
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 123
Topic
A car is accelerated on a levelled road and attains a speed of 4 times its initial speed. In this process, the kinetic energy of the car
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 252
Topic
A car is accelerated on a levelled road and acquires a velocity 4 times of its initial velocity. During this process, the potential energy of the car:
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 270
Topic
What is the difference between gravitational potential energy and elastic potential energy? Give one example of a body having gravitational potential energy and another having elastic potential energy. (b) If 784 J of work was done in lifting a 20 k...
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 124
Topic
Explain by an example what is meant by potential energy. Write down the expression for gravitational potential energy of a body of mass m placed at a height h above the surface of the earth. (b) What is the difference between potential energy and ki...
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 229
Topic
What do you understand by the kinetic energy of a body? (b) A body is thrown vertically upwards. Its velocity goes on decreasing. What happens to its kinetic energy as its velocity becomes zero?
4 years ago
Forum
Work, Power And Energy
Replies: 0
Views: 266
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