Last seen: Nov 14, 2021
Correct answer: (1) reduction in oxygen
Correct answer: (3) sulphur dioxide
Correct answer: (1) Lead
Correct answer: (3) Ozone
Correct answer: (2) automobile exhausts
Correct answer: (1) CO2
Correct answer: (4) Carbon dioxide
Correct answer: (1) Increase in temperature due to increase in carbon dioxide concentration of atmosphere
Correct answer: (3) Fluorocarbon
Correct answer: (2) Methyl isocyanate
Correct answer: (4) Biodegradable pollution
Mass of the body = 2kg Initial velocity u = 0 Final velocity v = 30 m/s Time t = 1 s Acceleration a = = = 30 m/s2 Force = m x a = 2 x...
Mass of bullet, m1 = 10g = 0.01 kg Velocity of bullet v1 = 200 m/s Mass of block with the bullet as bullet gets embedded in it, m2 = 2 + 0.01...
Mass of bullet, m1 = 60g = 0.06 kg Velocity of bullet v1 = 500 m/s Mass of gun m2 = 5 kg Recoil velocity v2 According to the law of conserv...
To start his run, a runner bends forward and pushes the ground with his feet in the backward direction. In turn ground exerts a reaction force on the ...
It becomes very difficult to walk on a slippery road because of the fact that on a slippery road, the friction is much less, and we cannot exert a bac...
When a man jumps out from a boat, the boat moves backwards due to the fact that to step out of the boat, the man presses the boat with his foot in the...
Action and reaction act on two different bodies. Action and reaction are equal in magnitude but they act in opposite directions and there is simultane...
A rockets works on the principle of action and reaction. In a rocket, the hot gases produced by the rapid burning of fuel rush out of a jet at the bot...
To make the cart move, the horse bends forward and pushes the ground with its feet. When the forward reaction to the backward push of the horse on the...