A 0.10 kg piece of copper, initially at 95 °C, is dropped into 0.20 kg of water contained in a 0.28-kg aluminum calorimeter; the water and calorimeter are initially at 15 °C. What is the final temperature of the system?

it would be kevlar ^^

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form