1)which of the following is not a benefit of stretching

a)poor circulation
b)increased speed and power
c) increased flexibility
d)minimized chances of injuries

2) which of the following is not an upper body stretch?

a)arm circle
b)trunk twist
c)straddle stretch
d)triceps stretch

3) with which of the following activities should you stretch before participating in?

a)field hockey
b)basketball
c)track
d)all of the above

What are similarities and differences between refraction, reflection, diffraction and absorption?

The speed of light can be used to measure the

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg. how much energy e must be supplied to the device? express your answer in joules.