If it takes 820 Joules of heat to warm a sample of zinc from 0°C to 50°C, what would be the mass of the zinc? Note: Zinc has a specific heat of 380 J/kg °C.

m = 43.1 g

Explanation:

Given that,

Heat to warm the sample, Q = 820 J

Initial temperature = 0°C

Final temperature = 50°C

The specific heat of zinc is, c = 380 J/kg °C

We need to find the mass of the zinc. The specific heat in terms of mass and temperature is calculated by the relation as follows :

So, the mass of the sample is 43.1 g.

it takes about 30 days for it to break down

probably not if net force is zero