Prototypes have already been constructed and put into orbit

Reference no: EM13662268

One goal of the Russian space program is to illuminate dark northern cities by sunlight reflected to the Earth from a200 m diameter mirrored surface in orbit. Several smaller prototypes have already been constructed and put into orbit.

a) Suppose that sunlight with intensity 1340W/m2 falls on the mirror nearly perpendicularly and that the atmosphere of the Earth allows 83.3% of the energy of sunlight to pass though it in clear weather. What is the power received with a city when the space mirror is reflecting light to it?

b) The plan is for the reflected sunlight to cover a circle of diameter 8.00 km. What is the intensity of light (the average magnitude of the Pointing vector) received by the city?

c) This intensity is what percentage of the vertical component of sunlight at St. Petersburg in winter, when the sun reaches an angle of 8.80°above the horizon at noon?

Reference no: EM13662268

Questions Cloud

What is the length l of the trapped volume of air : The 3.0-m-long pipe in the figure is closed at the top end. It is slowly pushed straight down into the water until the top end of the pipe is level with the water's surface. What is the length L of the trapped volume of air?

Facility to convert solar radiation to electrical power : A community plans to build a facility to convert solar radiation to electrical power. They need 3.00 MW of power, and the system to be installed has an efficiency of 30.0% (that is, 30.0% of the solar energy incident on the surface is converted to us..

The energy of sunlight to pass though it in clear weather : One goal of the Russian space program is to illuminate dark northern cities by sunlight reflected to the Earth from a200 m diameter mirrored surface in orbit. Several smaller prototypes have already been constructed and put into orbit.

Particle undergoes uniform circular motion of radius : A particle undergoes uniform circular motion of radius 28.3 µm in a uniform magnetic field. The magnetic force on the particle has a magnitude of 1.45 1017 N. What is the kinetic energy of the particle?

Prototypes have already been constructed and put into orbit : One goal of the Russian space program is to illuminate dark northern cities by sunlight reflected to the Earth from a200 m diameter mirrored surface in orbit. Several smaller prototypes have already been constructed and put into orbit.

Plans to build facility to convert solar radiation to power : A community plans to build a facility to convert solar radiation to electrical power. They require 3.00 MW of power, and the system to be installed has an efficiency of 30.0% (that is, 30.0% of the solar energy incident on the surface is converted to..

Microwave oven is powered by electron tube called magnetron : A microwave oven is powered with an electron tube called a magnetron, which generates electromagnetic waves of frequency2.75 GHz. The microwaves enter the oven and are reflected with the walls. The standing wave pattern produced in the oven can cook ..

Oxygen for hospital patients is kept in special tanks : Oxygen for hospital patients is kept in special tanks, where the oxygen has a pressure of 70.0 atmospheres and a temperature of 288 K. The tanks are stored in a separate room, and the oxygen is pumped to the patient's room, where it is administered a..

A hollow wire of outer radius : A hollow wire of outer radius 10 cm and inner radius 5 cm carries a uniformly distributed 12 Amp current. Discover the value of the magnetic field at a) r= 6 cm and b) r= 20 cm. (use ampere slaw)

User Account

All Pages