Physics Questions

The kinetic energy of a ball weighing 0.5 kg moving with a velocity of 4 m/s will be

The ____ of a substance is defined as the mass per unit volume.

Consider a planet whose mass and radius are both twice the mass and radius of Earth. The acceleration due to gravity on the surface of the planet is 'n' times that on Earth. The value of n is:

Which of the following instrument is used to measure Soil Water Tension?

1 pascal equals 1 ________________.

The pressure inside the cabin of the aircraft flying at an altitude is

Two identical resistors, each of 10 ohm, are connected in parallel. This combination, in turn, is connected to a third resistor of 10 ohm. The equivalent resistance of the combination is ___.

A source maintains a current I in a resistor of resistor of resistance R. If V is the potential difference across the resistor. The electrical energy dissipated in the resistor in time is given _____