substitute the values we get,
Radiation from the Sun reaching Earth (just outside the atmosphere) has an intensity of 1.38 kW/m2....
The intensity of radiation reaching the earth from the sun is 1350 W/m2. The earth's radius is 6.4 ´ 106 m. How big a force does this radiation exert on the earth? (Assume it is all absorbed.)
5. The intensity of the electromagnetic radiation from a star reaching the upper atmosphere of a planet orbiting it is 0.85 kW/m². Assume that the average wavelength for this radiation is 590 nm. a. Find the number of photons per second that strike a 1.5 m by 3.5 m solar panel directly facing the star on an orbiting satellite. b. What is the number of photons per second if the panel is tilted 23° away from the star?
The intensity of solar radiation in space near the Earth is 1.4 kW/m2. The Mars Reconnaissance Orbiter (MRO) orbits Mars, which is 1.5 times further from the Sun than the Earth. What force is exerted by solar radiation impinging normally on a 5.0 m2 perfectly reflecting solar panel on the MRO? A) 23 μN B) 10 μN C) 14 μN D) 21 μN E) 47 μN
Sunlight above the Earth's atmosphere has an intensity of 1.38 kW/m2. If this is reflected straight back from a mirror that has only a small recoil, the light's momentum is exactly reversed, giving the mirror twice the incident momentum. a) Calculate the force per square meter of mirror (in N/m2). b) Very low mass mirrors can be constructed in the near weightlessness of space, and attached to a spaceship to sail it. Once done, the average mass per square meter...
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature of the Earth is affected by the greenhouse effect of the atmosphere. This phenomenon describes the ef- fect of absorption of infrared light emitted by the surface so as to make the surface temperature of the Earth higher than if it were airless. For comparison, consider a spherical object of radius r with no atmosphere at the same distance from the Sun as the...
The intensity of electromagnetic waves from the sun is 1.4 kW/m” just above the earth's atmosphere. Eighty percent of this reaches the surface at noon on a clear summer day. Suppose you think of your back as a 33.0 cm x 55.0 cm rectangle. Part A How many joules of solar energy fall on your back as you work on your tan for 0.500 hr ? Express your answer with the appropriate units. ? CH PÅ Value o 2 Units...
On a clear day, the total intensity of solar radiation incident at the Earth's surface is approximately 1000W/m2 Part a Assume our atmosphere absorbs 23% of the incoming solar radiation, and that the distance from the Earth to the Sun is 1.5 x 1011m. From this information, what do you expect is the total power output of the sun? [IMPORTANT: to express a number like 2 x 1021, type 2e21] Enter answer here O of 4 attempts used CHECK ANSWER...
In Example 34.6, we imagined equipping 1950DA, an asteroid on a collision course with the Earth, with a solar sail in hopes of ejecting it from the solar system. We found that the enormous size required for the solar sail makes the plan impossible at this time. Of course, there is no need to eject such an object from the solar system; we only need to change the orbit. A much more pressing problem is Apophis, a 300-m asteroid that may be...