The Sun emits electromagnetic waves equally in all directions. The intensity at Earth’s upper atmosphere is 1.4 Kw/m2 . At what rate does the Sun emit electromagnetic waves? The average Earth-Sun distance is 1.50 × 1011 m(Hint: The total power output).

4. The Earth reflects approximately 38.0% of the incident sunlight from its clouds and surface. (a) Given that the intensity of solar radiation is 1 340 W/m, what is the radiation pressure on the Earth, in pascals, when the Sun is straight overhead? (b) Compare this to normal atmospheric pressure at the Earth's surface, which is 101 kPa

A point source emits electromagnetic energy at a rate of (1.034x10^2) Joules per second. What is the intensity of the electromagnetic radiation (1.01x10^1) m from the source? Express your result with three significant figures in mW/m². Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Answer x10

An electromagnetic wave is normally incident on a flat surface. Assuming the power per unit area transmitted is S = 12.0 W/m², and the surface is a perfect absorber, what is the radiation pressure (in nPa) on the surface? nPa

The average Earth-Sun distance is 1.00 astronomical unit (AU). At how many AUS from the Sun is the intensity of sunlight 1/81 the intensity at the Earth? AU

Suppose a radio wave has a wavelength of 2.00 meters. What it the frequency of the radiation? It may be helpful to recall that v = AF for electromagnetic waves, while v = c = 3.00 × 108 m/s. Ο Α. 150 khz О В. 1.50 Mhz О С. 15.0 Мhz O D. 150 Mh

If the intensity of sunlight at the Earth's surface under a fairly clear sky is 1 444 W/m², how much electromagnetic energy per cubic meter is contained in sunlight? µJ/m³

Determine the maximum force P the connection can support so that no slipping occurs between the plates. There are four bolts used for the connection and each is tightened so that it is subjected to a tension of 4 kN. The coefficient of static friction between the plates is μs = 0.4.

A space probe which is a distance of 2.6×1010 mm from a star measures the total intensity of electromagnetic radiation from the star to be 5300 W/m^2 .   If the star radiates uniformly in all directions, what is its total average power output?

The average intensity of solar radiation reaching Earth's satellite orbit is 1360 W/m?. A satellite's solar panel with area 37.7 m? directly faces the sun and absorbs the entire solar radiation incident on it. What is the force the solar radiation exerts on the panel (in Newton)? Speed of light in vacuum c = 3.008 m/s Permittivity of vacuum &0 = 8.85B-12 F/m Permeability of vacuum No = 1.26E-6 T•m/A