Define the effective resistance
The edges of a cube consists of equal resistors of resistance R, which are joined at the corners. Let a battery be connected to two opposite corners of a face of the cube. What is the efective resistance?
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determine: a) the coefficient of performance for this refrigerant and b) the Exergy destruction when the temperature of the surroundings is 20 degree C.
A block of mass m1 = 2.00 kg on a frictionless inclined plane of angle 32.0° is connected by a cord over a massless, frictonless pulley to a second block of mass m2 = 2.00 kg hanging vertically.
A geologist finds that a Moon rock whose mass is 9.79 kg has an apparent mass of 6.50 kg when submerged in water. What is the density of the rock?
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what is the equilibrium temperature of a collector plate directly facing the sun? Note that while a plate has two sides, only the side facing the sun will radiate because the opposite side will be well insulated.
A screen is placed 1m from a single slit which is illuminated with 690 nm light. The slit width is 0.1 mm. What is the distance from the central maximum to the first minimum of the diffraction pattern in millimeter?
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