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The intensity of solar radiation at the top of Earth's atmosphere is 1340 W/m3. Assuming that 60% of the incoming solar energy reaches Earth's surface and assuming that you absorb 50% of the incident energy, make an order-of-magnitude estimate of the amount of solar energy you absorb in a 60 minute sunbath. (Suppose that you occupy a 1.7 m by 0.3 m area of beach blanket and that the sun's angle of elevation is 60°.)
A 103 gram granite cube slides down a 40 degree frictionless ramp. Find how high above the table should the granite cube be released
What is the pressure change in water going from a 3.2- cm-diameter pipe to a 1.9- cm-diameter pipe if the velocity in the smaller pipe is 6.5 m/s
The electric field on the surface of a 10cm diameter sphere is perpendicular to the sphere and has magnitude37 kN/C. What is the electric flux through the sphere?
An injured monkey sits perched on a tree branch 3.0 m above the ground, while a wildlife veterinarian is kneeling down in the bushes 88.5 m away attempting to subdue the monkey with a tranquilizer gun.
Water is circulating through a closed system of pipes in atwo-floor apartment. On the first floor, the water has a gaugepressure of 3.4*105 Pa and a speed of 2.1 m/s. However, on the second floor, which is 4.0m higher, the speed ofthe water is 3.7 ..
An electric-generator turbine spins at 3400 rpm. Frictionis so small that it takes the turbine 19.0 min to coast toa stop. How many revolutions does it make while stopping
A baseball thrown off a pedestrian pathway, 36 m above the Erie Canal, What is the range of the baseball
a 2 kg block travels around a 0.5m radius circle with an angular speed of 12 rad/s. what is the resulting torque
acetone and chloroform form a nonideal mixture. at 35 degrees celsius the vapor pressure of acetone is 347 torr and
A 1500 kg car increases its speed from 15 m/s to 18 m/s in 15 seconds. What is the resultant work done on the car
find out the speed with which the pebble strikes the ground when the pebble is fired (a) horizontally, (b) vertically straight up, and (c) vertically straight down
The flowmeter shown in the figure measures the flow rate of water in a solar collector system. what is the volume flow rate
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