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Are photovoltaic cell arrays on a satellite the same that are used within Earth, or is there some difference in their construction given the differing environment in which they are to operate? Does the efficiency/life of a photovoltaic cell change depending upon whether it is within/without Earth's atmosphere?
A three-step cycle is undergone by 3.8 mol of an ideal diatomic gas: the gas is then contracted at constant pressure back to its original volume. Throughout the cycle, the molecules rotate but do not oscillate. What is the efficiency of the cycle
An arrow, starting from rest, leaves the bow with a speed of 28.8 m/s. With what speed would the arrow leave the bow
Take the density of the crown to be p_c. What is the ratio of the crown's apparent weight (in water), W_apparent, to its actual weight, W_actual?
The rain-soaked shoes of a man may explode if ground current from nearby lightning vaporizes the water. find what average current is required to vaporize water
Design a spring that will give a 1140kg satellite a speed of 2.20m/s relative to an orbiting space shuttle. Your spring is to give the satellite a maximum acceleration of 5.00g. The spring's mass, the recoil kinetic energy of the shuttle, and ..
A 12.0 kg watermelon is at rest upon a ramp that is raised to an angle of 27.0o. find the vertical component of the force of gravity
What force must be applied to push a carton weighing 310 N up a 16° incline, if the coefficient of kinetic friction is 0.41
Three capacitors (3.90, 5.94, and 12.1 μF) are connected in series across a 55.0 V battery. Calculate the voltage across the 3.90 μF capacitor.
A massless pan hangs from a spring that is suspended from the ceiling. When empty, the pan is 50cm below the ceiling. What is the pan's distance from the ceiling when the spring reaches its maximum length
a charge of -4.00 nc and a charge of -5.35 nc are separated by a distance of 40.0 cm. find the position at which a
The three ropes are tied to a small, very light ring. Two of these ropes are anchored to walls at right angles with tensions T1 = 35 N andT2 = 70 N. What are the magnitude and direction of the tension Tvec3 in third rope.
In 1965 Penzias and Wilson discovered the cosmic microwave radiation left over from the Big Bang expansion of the universe. Determine the corresponding electric field amplitude
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