How do we get heat from the sun through the freezing cold empty space between the sun and Earth? (Explain.)
Heat from the sun is obtained not by convection or conduction both of which require a medium to travel, but rather by the radiation process. Sun emits electromagnetic radiation of different wavelengths. These contains infrared wavelength of electromagnetic spectrum, which are responsible for heating. And these electromagnetic radiation do not require any medium to travel. These electromagnetic radiation can travel through empty space also. That's how we got heat from sun.
How do we get heat from the sun through the freezing cold empty space between the...
where does hot rising air get its heat from? Why does air get colder as it ascends, if it is getting closer to the sun? If this is because air is moving away from the earth (a possible source of heat) why is it that snow can be on the ground when ambient temperature is above freezing point? Water is a better conductor of heat than air is
how much power can you get from the sun, and how much do you need for our use?
The sun is 1.5 × 108 km from Earth. The index of refraction for water is 1.327. How much longer would it take light from the sun to reach Earth if the space between them were filled with water rather than a vacuum?
Sunlight at the radius of Earth’s orbit away from the sun contains 1370W atts/m2 (this is called the solar constant and is a very important constant for climate science). i.e. Every second, 1370J of sunlight fly through a square of size 1m2. The Earth has an albedo of 0.3. This means that 30% of the energy gets re- flected back into space. For symplicity, we can assume that the a square meter of the Earth facing the sun absorbs 1000J...
Heat flows at a rate of Q/t from a hot object to a cold object through some material that has a thickness of d and a surface area of A. If the surface area of the material is increased to 2A and the thickness is increased to 4d then what rate does the heat flow from the hot object to the cold object now? [You may assume that the hot and cold object are unchanging in temperature.]
1) According to Einstein's theory of general Relativity, The Earth orbits around the sun because A) The gravitational force emanating from the Sun causes the Earth to accelerate away from a straight line path and curve towards the Sun b) The structure of space-time in the region of the Earth has been altered by the presence of the Sun in such a way that its orbit, although curved, is the shortest path in space-time. c) The particles having mass in...
To get WORK out of an engine do you want the heat flowing from the HOT temperature source Q(hot) to be LARGER or SMALLER than the heat flowing into the COLD temperature source? Please be clear!
How far apart do the Sun and Earth need to be from each other so that the force of gravity between them is 1000 N? Express your final answer in units of light years, to three significant figures. (you will have to look up Newton's Law of Gravitation, masses, and conversion factors you need)
Can you please explain to me how to do this question? $3 Heat and heat trangfer H&T 176 The following two exercises illustrate how the concept of heat transfer can be used to predict the equilibrium temperature of a mixture of hot and cold water Exercise 3.4 we mix 6 g of water at 34°C and 5 g of water at 23°C. The description of the interaction in terms of heat transfer is illustrated at right. Heat A. How much...
Pluto is 5.90 times 10^9 km from the sun. How much space warp does the sun cause over this distance.