A car traveling at 30ms−1 overcomes a frictio...
A car traveling at 30ms−1 overcomes a frictional resistance of 100N while moving. Calculate the power developed by the engine. [1 hp = 0.75 kW]
0.23hp
0.40hp
4.00hp
4.40hp
Correct answer is C
P = FV = 100×301000=3kW
30.75=4hp
Which of the following statements is not correct about steel and soft iron? ...
Both γ-rays and X-rays i. can be produced by thermionic emission ii. have low frequencies i...
Which of the following is a vector? ...
A transverse wave can be distinguished from a longitudinal wave by ...
The terminals of a battery of emf 24.0 V and internal resistance of 1.0 Ω is connected to an e...
A rainbow is formed when sunlight is incident on water droplets suspended in the air due to ...