Physics
Physics, 29.07.2019 17:00, gracerich

How do scientists determine if an object is moving away from the earth or towards earth?

answer
Answers: 1

Other questions on the subject: Physics

image
Physics, 21.06.2019 23:00, desiwill01
We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canary’s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg. k and density of air is 1.16 kg/m3 . assume the canary’s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.
Answers: 2
image
Physics, 22.06.2019 06:30, bluevibe
2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
Answers: 2
image
Physics, 22.06.2019 10:10, randlemccray4305
What is the angular momentum of the bar about the axle?
Answers: 3
image
Physics, 22.06.2019 11:20, ignacio73
How to tell if a molecule is polar or nonpolar with electronegativity
Answers: 2
Do you know the correct answer?
How do scientists determine if an object is moving away from the earth or towards earth?...

Questions in other subjects:

Konu
Mathematics, 26.09.2019 23:30