the mass of the water in the tank is 50 kg. what is the amount of heat supplied by the heating coil in the first 20minutes?​

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?