Which of the following simple machines is a second class ...
Which of the following simple machines is a second class lever?
wheel barrow
crowbar
claw hammer
seesae
Correct answer is A
No explanation has been provided for this answer.
The anomalous expansion of water occurs in the range ...
Which of the following statements about friction is NOT correct? ...
The limiting frictional force between two surfaces depends on I. the cohesive force of the mat...
The tyre pressure of a car was found to be 150cmHg in the morning at a temperature of 27°C. Hard...
What is the average velocity of the sprinter whose velocity time graph is as shown above ...
A metal rod has a length of 100cm at 200°C. At what temperature will its length be 99.4cm. If th...