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The drawing shows an edge-on view of the solar panels on a communications satellite. The dashed line specifies the normal to the panels. Sunlight stikes the panels at an angle θ with respect to the normal. If the solar power impinging on the panels is 3000 W when θ = 69°, what is it when θ = 29°
On a warm day (89F), an air-filled balloon occupies a volume of 0.250m^3 and has a pressure of 22.0 lb/in . If the balloon is cooled to 32F in a refrigerator while its pressure is reduced to 14.7 lb/in , what is the volume of the air in the container..
One particle has a mass of 4.41 x 10-3 kg and a charge of +6.92 ?C. A second particle has a mass of 6.52 x 10-3 kg and the same charge. The two particles are initially held in place and then released.
A satellite of Mars, called Phobos, has an orbital radius of 9.4 106 m and a period of 2.8 104 s. Assuming the orbit is circular, determine the mass of Mars
A 65- person stands on a scale in a moving elevator while holding a 5.0 mass suspended from a massless spring with spring constant 1.10. What is the reading of the scale on which the person stands
a thin rod, of length L = 1.9m and negligible mass, that can pivot about one end to rotate in a vertical circle. A heavy ball is attached to the other end. find the initial height of the ball
Three point charges -q,-q, and 2q occupy the verices of an equilateral triangleof side a. Find the electric field at the center of the triangle
A pilot, whose mass is 85.0 kg, makes a loop-the-loopin a fast jet. Assume that the jet maintains a constant speed of105 m/s and that the radius of the loop-the-loop is 0.393 km
question1mainly cars have a speedometer odometer and a clock.a illustrate how you might use these devices to determine
A skateboard track has the form of a circular arc with a 3.60m radius, What is the normal force exerted on the skate boarder at the bottom of the circular arc
A 246 kg wooden raft floats on a lake. as a 85 kg man stands on the raft, it sinks 5.0 cm deeper into the water. When he steps off, the raft vibrates for a while.
A beam of light traveling in water strikes a surface of a transparent material at an angle of incidence of 45°. what is the index of refraction of the material
A reversible isochore from an equilibrium state at P1= 1 bar, t1=100C to an equilibrium state at t2=300C followed by a adiabatic isentropic expansion to P3=1 bar, Find the thermal efficiency of the cycle
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