Physics, 11.04.2021 14:40 jm832098

What is reflection of light question mark write the laws of reflection of light

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 12:30

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?

Answers: 1

Answer

Physics, 22.06.2019 14:00

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?

Answers: 1

Answer

Physics, 22.06.2019 16:50

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.

Answers: 2

Answer

Physics, 23.06.2019 00:00

Why do atoms emit energy of only specific wavelengths

Answers: 1

Answer

You know the right answer?

What is reflection of light question mark write the laws of reflection of light ...

Questions