How much heat is needed to raise the temperature of 7g of water by 16oc?

To find the heat/energy required to raise he temperature of a substance, use this formula:

Q=mcΔT

Q= heat (J)

m= mass of substance (g)

c= specific heat of substance (J/g°C; depends on the substance; you're usually given this or you'll have to look it up)

ΔT= change in temperature (°C)

for this question:

m = 7g; c (water) = 4.186 J/g°C; ΔT= 16 °C

∴ Q= 7g x 4.186 J/g°C x 16 °C =468.832 J

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.