If the sand you ran across has a specific-heat capacity of 835 J(kg and degC) how much energy must be added to a 2-kilogram pile of it to increase its temperature from 40 and degC to 50 and degC Show?

The amount of energy needed to increase the temperature of a substance can be calculated using the formula: E = mcΔT, where E is the energy, m is the mass (2 kg), c is the specific heat capacity (835 J/kg°C), and ΔT is the change in temperature (50°C - 40°C = 10°C).

Plugging in the values: E = 2 kg * 835 J/kg°C * 10°C = 16700 J.

Therefore, 16,700 J of energy must be added to the 2-kg pile of sand to increase its temperature from 40°C to 50°C.