Physics, 14.02.2021 20:50, heydisr

Electromagnetic waves from the sun reach the earth even though the space between us and the sun. Sound waves emitted by the sun cannot reach the earth. Explain why this difference?

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 17:20, shaviaa

Which of the following quantities are units of momentum? (there could be more than one correct choice.) a)n m b) kg s/m c) kg m/'s d)n-s 12 points] e) kg m2/s2

Answers: 2

continue

Physics, 22.06.2019 10:30, gyexisromero10

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.

Answers: 2

continue

Physics, 22.06.2019 14:00, 6224968918

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

Answers: 1

continue

Physics, 22.06.2019 16:40, ashleypere99

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel

Answers: 3

continue

Do you know the correct answer?

Electromagnetic waves from the sun reach the earth even though the space between us and the sun. Sou...