How much energy is transferred to 1.327 grams of water when the
temperature of the water is increased from 18°c to 47°c? (the specific
heat of water is 4,186 j/kg-°c.)
a. 9.9x10^2j
b. 1.6x10^5j
c. 2.6x10^5 j
d. 1.6x10^8j

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?