Answers

The linear expansivity of brass is 2 x 10-5C-1. If the volume of a piece of brass is…

In a wheel and axle mechanism the diameters of the wheel and axle are 40cm and 8cm respectively.…

Which of these statements are correct for the pressures in liquids? i. pressure in a liquid at a…

The atmospheric pressure due to water is 1.3 x 106Nm-2. What is the total pressure at the bottom…

A solid of weight 0.600N is totally immersed in oil and water respectively. If the upthrust of oil…

A uniform meter rule weighing 0.5N is to be pivoted on a knife-edge at the 30cm-mark. where will…

A man whose mass is 80kg climbs a staircase in 20s and expends power of 120W. Find the…

A parachute attains a terminal velocity when A. its density is equal to the density of air B.…

The tendon in a man’s leg is 0.01m long. If a force of 5N stretches the tendon by…

In free fall, a body of mass 1kg drops from a height of 125m from rest in 5s.…