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At one location on the Earth, the rms value of the magnetic field caused by solar radiation is 1.85 µT. (a) Calculate the rms electric field due to solar radiation. V/m (b) Calculate the average energy density of the solar component of electromagnetic radiation at this location. µJ/m3 (c) Calculate the average magnitude of the Poynting vector for the Sun's radiation. W/m2 (d) Assuming that the average magnitude of the Poynting vector for solar radiation at the surface of the Earth is Sav = 1000 W/m2, compare your result in part (c) with this value. %
A box of mass 5.8 kg is accelerated from rest by the force across a floor at a rate of 2.0 m/s2 for 8.2 s. Find the net work done on the box.
A man applies a force of F = 3.00 102 N at an angle of 60.0° to a door, x = 2.20 m from the hinges. Find the torque on the door
an electric motor lifts an elevator car at the constant speed of 2 m/s. The power consumed by the motor to perform this task is 40000 W. what is the mass of the elevator
An observer, whose eyes are 1.92m above the ground, is standing 31 m away from a tree. The ground is level and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 21° above the horizontal. How t..
Gas is confined in a tank at a pressure of 10.7 atm and a temperature of 24.1°C. what is the new pressure in the tank
A sprinter of mass 66.2 starts his race by pushing horizontally backward on the starting blocks with a force of 190 Determine his initial acceleration as he leaves the blocks
What is the work completed by the block and tackle system?
At NASA's Zero Gravity Research Facility in Cleveland, Ohio, experimental payloads fall freely from rest in an evacuated vertical shaft through a distance of 132 m, How fast will the payload be traveling when it reaches the bottom of the shaft
An enemy ship is on the east side of a mountainous island. The enemy ship can maneuver to within 2500 meters of the 1800 meter high mountain peak and can shoot projectiles with an initial speed of 250m/sec. If western shoreline is horizontally 30..
The light bulb in the circuit has a resistance of 11 ohms and consumes 6.7 W of power as the 1.25 m long, What speed must the rod have if the current in the circuit is to be 0.65 A
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 17.0° below the horizontal. Find the length of time the car is in the air
Calculate the force on an airplane which has acquired a net charge of 1450?C and moves with a speed of 150m/s perpendicular to the Earth's magnetic field
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