Speed of the first train = [240/20] m/sec = 12 m/sec Speed of the second train = [240/30] m/sec = 8 m/sec Speed = (12 + 8) m/sec = 20 m/sec Required time = (240 + 240)/20 sec = 24 sec
Total mechanical energy =
The shape of our Milky Way galaxy is
The polarization of electromagnetic waves demonstrates that they are:
Which of the following is the best conductor of electricity?
Which of the following is an example of longitudinal waves in a gas medium?
In circular motion the direction of velocity changes at _______ points.
A meter stick moves along its length with a certain speed. The apparent length of the moving meter stick as measured by a stationary observer on the gr...
The energy that can harness heat stored below the earth's surface is known as –
Two long parallel conductors are placed 8mm apart from each other carrying a current of 120 Amperes. What will be force per meter length of each one?
The speed of a fast moving electron, having total energy of 2 MeV, is nearly:
