The specific heat of liquid water is 4.184 j/g-k. the latent heat of melting (ice to liquid is 6.0102 kj/mol. define q100-0= the amount of heat released by water when it is cooled from boiling to freezing. define freeze = the amount of heat released during the freezing of water. estimate q ratio ? q100-0/qfreeze

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up