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A typical home may require a total of 2.00*10^3kWh of energy per month. Suppose you would like to obtain this energy from sunlight, which has an average daylight intensity of 1200W/m^2. Assuming that sunlight is available 8.0 h per day, 25 d per month (accounting for cloudy days), and that you have a way to store energy from your collector when the Sun isn't shining, determine the smallest collector size that will provide the needed energy, given a conversion efficiency of 27% .
A typical red blood cell subtends an angle of only 1.8×10^-5 rad when viewed at a person's near-point distance of 25 cm. find the magnitude of the angle subtended by the red blood cell
System A has a temprature of TA = 300K and Ua = 30 MJ/kmol. System B has tempratuer TB = 200K and UB = 60MJ/kmol. Describe (qualitatively) the final (equilibrium) state of the combined system
What is an approximate absorbed dose rate in Gy per day in water at the center of the bucket if 163 atoms of Cs-137 disintegrate per g s? Use the straight-ahead approximation and mean-radius method of calculating the photon dose. Give the answers for..
Uncompressed, the spring for an automobile suspension is 45cm long. It needs to be fitted into a space 36cm long. how much work does a mechanic have to do to fit the spring
Find the speed of light in flint glass (refraction index 1.67). Use 2.99792x10^8 m/s for the speed of light. Find the speed in light in zircon
A moving 4.10 kg block collides with a horizontal spring whose spring constant is 260 N/m. The block compresses the spring a maximum distance of 15.00 cm from its rest position.
The resistance of a bagel toaster is 18 . To prepare a bagel, the toaster is operated for one minute from a 120-V outlet. How much energy is delivered to the toaster
if the current through a loop radius 50 cm is 2A, what is the magnetic field produced by the loop wire
A square conducting loop has side a and carries clockwise current I as shown in the diagram. calculate the magnitude and direction of the magnetic field at the center of the square
The captain of an infamous ship spots an iceberg ahead. Currently the ship is travelling east at a speed of 37.0 knots. How many seconds will it take before the iceberg is directly ahead of the ship
An electron moves at a speed of 15000 m/s in a circular path of radius 2.2 cm. Find the strength of the magnetic field inside the solieod
a strip of Ag of thickness 0.01 cm has magnetic induction of 1.5 T applied perpendicular to the surface. a current of 1.2 A is passed along the strip. calculate the Hall voltage estalished (assume the free electro model; FCC with lattice parameter 4...
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