Sort the chemical reactions based on whether they absorb or release energy. Respiration in cells

activating a cold pack

producing electric current

photosynthesis

burning a candle

baking bread

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?