Process of Science: Think of some ways in which you can demonstrate the following by simply looking at the sky: a) the Sun and stars lie beyond the Earth's atmosphere b) the stars are further away than the Moon
What will be an ideal response?
a) The Sun and stars disappear behind clouds. That tells us that clouds, in our atmosphere, lie between us and the stars.
b) As the Moon moves across the sky, it blocks out ("occults") stars. This tells us that the Moon lies between us and the stars.
You might also like to view...
A balloon fully inflated and sealed at 10 metres/33 feet, would probably __________ during ascent to the surface.
a. shrink (become smaller) b. burst
Almost all of our atmospheric gases lie in the
A) ozone layer. B) mesosphere. C) ionosphere. D) troposphere. E) stratosphere.
A refrigerator is an example of a heat mover
Indicate whether the statement is true or false
Two parallel plates of infinite extent perpendicular to the page are situated relative to each other as shown in the figure. The upper plate is at 300°C and the lower plate is at 100°C. Determine the net rate of radiation heat transfer from the upper and lower plate assuming the environment is at a temperature below 100°C. Assume that both the lower surface of the upper plate and the upper surface of the lower plate are black.
GIVEN • The planet Mars revolving around the sun • Diameter of Mars (Dm) = 6600 km • Distance from the sun (Rms) = 225 × 106 km • Diameter of the sun (Ds) =1,384,000 km FIND (a) The equilibrium temperature of Mars (Tm) (b) Tm assuming that the albedo of Mars = 0.15 ASSUMPTIONS • Both Mars and the sun act as blackbodies • The sun has an equivalent blackbody temperature (Ts) of 5600 K PROPERTIES AND CONSTANTS The Stephan-Boltzmann constant (?) = 5.67 × 10–8 W/(m2 K4)