If 2kg of water is to be heated from 24.0°C to 100°C to make a cup of tea, how much heat must be added? The specific heat of water is 4180 J/kg°C

Please show your work

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.