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Radiation from the Sun reaching Earth (just outside the atmosphere) has an intensity of 1400 W/m2. Estimate what would the intensity be at Venus?
The volume of 9 mol of a monatomic gas is increased from 3 L to 6 L at constant pressure. The initial temperature of the gas is 31?C. How much heat must be supplied to the gas
The potential dissimilarity between the plates of a parallel plate capacitor is 35 V and the electric field among the plates has strength of 750 V/m. If the plate area is 4.0 × 10-2 m2,what is the capacitance of this capacitor?
A 44.2 kg wagon is towed up a hill inclined at 17.7 with respect to the horizontal. The tow rope is parallel to the incline and exerts a force of 154 N on the wagon. Suppose that the wagon starts from rest at the bottom of the hill, and disregard fri..
When its coil rotates at a frequency of 230 Hz, a certain generatorhas a peak emf of 86 V. (a) What is the peak emfof the generator when its coil rotates at a frequency of 34 Hz?(b) Determine the frequency of the coil's rotation when the peak emf of ..
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 54 dB by an observer 10 km away. What is the average power generated by the horn
The electric field on the surface of a 10 cm diameter sphere is perpendicular to the sphere and has magnitude 37 kN/C. What is the electric flux through the sphere?
question a projectile is launched from a platform 35 feet high with an initial velocity of 20 feet per second. the
A block of wood is held in place against a rough wall by someone pushing on it with a force directed upward at 28 degrees above the horizontal, What is the mass of the block of wood
Suppose you are myopic (nearsighted). You can clearly focus on objects that are as far away as 50.2 cm away. What would be the refractive power (in diopters - do not enter units) for your prescription
Jack and Jim are resting on an offshore raft after a swim. They estimate that the horizontal distance between a trough, Calculate how fast the waves are moving
An audio amplifier delivers to the speaker alternating voltage at audio frequencies. what is the time-averaged power transferred to it
the average density of a fish can be found by first weighing it in air and then finding the scale reading for the fish
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