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This high performing solar panel by SunForce is 24" by 54". Its maximum power output is 100W when placed under full noon sunlight. What is the efficiency of this panel? Watch your units. (Hint: Power of sunlight on earth at noon is about 1kW/m2).
In the macroscopic world, you know that you can hear but cannot see around corners. Explain why sound diffracts easily around a classroom door
A rod is measured to be 15 cm by an observer moving at 0.80c with respect to the length of the rod. What is the proper length of the rod
A string's tension force supplies the centripetal force needed to keep a yo-yo whirling in a circle. What kinds of forces keep a roller coaster held to a looping track
A battery provides a voltage of 10.0V and has unknown internal resistance Rint. If the external resistance is then changed to R2 = 7.00? , what is the value of the current I2 in the circuit
A pipe open only at one end has a fundamental frequency of 256 Hz. A second pipe, initially identical to the first pipe, is shortened by cutting off a portion of the open end. Now, when both pipes vibrate at their fundamental frequencies, a beat..
Saturated water vapor at 2800C is isothermally condensed to a saturated liquid in a piston-cylinder system. Calculate the heat transfer
A rocket in a fireworks display explodes high in the air. The sound spreads out uniformly in all directions. The intensity of the sound is 4.33 x 10-6W/m2 at a distance of 112 m from the explosion. Discover the distance (in m) from the source at whic..
A Carnot engine has 40 gram of Helium gas as its working substance. It operates between two reservoirs of temperatures T1= 400 Celsius and T2= 60 Celsius. Compute the work generated by this engine during one cycle
A string 1.3 m long with a mass of 3.9 g is stretched between two fixed points with a tension of 93 N. Find the frequency of the fundamental on this string
What is the minimum coefficient of static friction between the block and the ramp, if the block is not to slide back down the ramp - Draw a complete free body diagram for the block
She notices that the string make angle of 25o with respect to the vertical as the aircraft accelerates for takeoff, which takes about 18s. Estimate the takeoff speed of the aircraft.
Determine the problem: Consider the relationship between an unbalanced force, mass, acceleration, and velocity (speed)
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