A platinum resistance thermometer records 3.0 W at 0°C and 8.0 W at 100°C. If it records 6.0W in a certain environment, the temperature of the medium is?

Electrical appliances in homes are normally earthed so that

The inner diameter of a small test tube can be measured accurately using a

An aeroplane lands on a runway at a speed of $180kmh^{-1}$ and is brought to a stop uniformly in $30$ seconds. What distance does it cover on the runway before coming to rest?