Acopper ball and an aluminum ball of mass 150 g each are heated to 100°c and then cooled to a temperature of 20°c. the heat lost by the copper ball is 4.6 kj. the heat lost by the aluminum ball is 10.8 kj. what is the specific heat of copper, if the specific heat of aluminum is 0.90 j/g°c?

0.383 J/g°C

Explanation:

The heat emitted by the copper ball while cooling down is given by:

where:

m = 150 g is the mass of the ball

Cs = ? is the specific heat of copper

is the change in temperature

We know that the heat lost by the copper ball is

So we can re-arrange the formula to find the specific heat capacity:

i think it's 35 meters

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.