A sound wave has a frequency of 1 kHz and wavelength 50 cm. How long will it take to travel 1 km?

What is the mass of a material, whose specific heat capacity is 400 J/(kg °C) for a rise in temperature from 15°C to 25°C, when heat received is 20 kJ ?

The specific latent heat of vaporization of a substance is the quantity of heat needed to change unit mass from

Evaporation from the surface of a given liquid takes place more rapidly when