Question

how much heat energy is necessary to raise the temperature of 10kg of water from 25°c to 90°c? (Given: specific heat capacity of H2O=1 KCaL/Kg°c)​

Answer 1

So, heat required is 30000 cal or 30 kcal

Answer 2

Answer:

Kepler's law

three theorems describing orbital motion. The first law states that planets move in elliptical orbits with the sun at one focus. The second states that the radius vector of a planet sweeps out equal areas in equal times. The third law relates the distances of the planets from the sun to their orbital periods.

Explanation:

Kepler's Law of equal areas for equal times. As a planet moves in an orbit about the Sun, the areas swept out by the planet are equal for equal time intervals. A: For circular orbits the equal areas are identical in shape and size (red areas).