The energy consumption and area required by the solar cell

Assignment Help Physics

Reference no: EM1312572

Question 1. The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ. The average rate of electric energy consumption in one house is 1.0 kW.

[A] On average, how much energy does one house use during each 24hr day?

[B] If light energy to electric energy conversion using solar cells is 5% efficient, how many square miles of l& must be covered with solar cells to supply the electrical energy for 250,000 houses? Suppose there is no cloud cover.

Question 2. 550J of heat energy is transferred to a system that does 400J of work. By how much does the system's thermal energy change?

Reference no: EM1312572

Questions Cloud

What are the investment options for retirement plans : What are the Investment options for retirement plans and How much money will she need to withdraw each year starting at age 65

Rate of heat gained by object : n object of mass "m" specific heat "Cp" & surface area "As" is initially at a temperature "To". Rate of Heat gained by Object = Rate of Heat Lost by Gas m, Cp, h, A & Tg are all constants.

Initial speed u with which hiawatha can launch the arrow : Assume that, when Hiawatha aims vertically, his arrow reaches a maximum height of 20 m. Use this fact to find the initial speed u with which Hiawatha can launch the arrow vertically.

Calculate the minimum angle above the horizontal : Calculate the minimum angle above the horizontal at which Hiawatha must aim in order to outrun the arrow.

The energy consumption and area required by the solar cell : The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ. The average rate of electric energy consumption in one house is 1.0 kW. Find the energy consumption and area required by the solar cell

Increase the efficiency of a carton engine : A Carnot engine whose cold reservoir temperature is 1.0 C has a thermal efficiency of 40%. By how much should the temperature of the hot reservoir be increased to raise the efficiency to 60%?

Calculating plants maximum possible and actual efficiency : Calculating plants maximum possible thermal and actual efficiency.

The mass of a ball and speed of a puck after collision : Compute the mass of a ball and speed of a puck after collision.

Computing the takeoff speed and kinetic energy : Computing the kinetic energy, takeoff speed, and kinetic energy per kilogram.

User Account

All Pages