which of the following substance given below does not cause Acid Rain by burning them 1) coal 2) diesel 3) petrol 4) coke
Sameerabhi
Asked:
December 2022
train 200m long crosses a bridge.300m long It enters the bridge with a speed of 30 m / s.and leaves it with a speed of 50 m / s, what is the time taken to cross the bridge? (A) 2.5 s (B) 7.5s (D) 15.0 (C) 12.5s
Sameerabhi
Asked:
December 2022
Two tuning forks produce sounds of wavelength 1 and 1.5 m respectively in the air medium. the ratio of their frequencies is 1) 2:3 2) 1:2 3) 2:1 4) 3:2
Sameerabhi
Asked:
December 2022
A car of mass 1000kg is moving with a certain speed when a constant brakung force 1000N acts on it for 5 sec and the speed of the car reduces to half its original speed . Find the further time required to stop the car, if the same constant force...
Sameerabhi
Asked:
December 2022
What drives a nail into wood when struck by a hammer1.Force2.impulse3.momentum3.acceleration