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In a heat conductivity experiment, a slab of silicon of thickness 2 x 10^-3m and area of 0.40m^2 seperates condensing steam(lv=540cal/g) at 100 degree C and melting ice(Lf=80cal/g) at 0degreeC. Once steady state conditions are achieved, 46g of ice are found to melt in one minute. Find the increase of entropy in the universe during one minute of this experiment. Please show all work
A generator connected to an RLC circuit has an rms voltage of 120V and an rms current of 34mA. what is the inductive reactance of the circuit
A rock is released from rest into water. The magnitude of Fd of the drag force acting on the rock due to its motion through water can be modeled as Fd = Cd(v), where v is the speed of the rock and Cd is the constant drag coefficient. Determine the..
What is the horizontal distance x to the base of the wall supporting the mirror of the near point on the floor that can be seen reflected in the mirror . What is the speed of the third fragment? Overlook effects due to gravity.
What is the block's distance from equilibrium as the speed are 36 cm/s? What is block's position at t=1.0 s.
A visual inspection of an insect with mass 0.4mg (milligrams) suggest that its uncertainty in postion is 0.5um, How fast could the insect be moving
A race car starts from rest on the circular track of radius 455m. The car's speed increases at the constant rate of 0.480m/s2. At the point where magnitudes of the centripetal and tangential accelerations are equal.
A vehicle is speeding at 115 km/h on a straight highway when a police car moving at 145 km/h enters the highway from an onramp and starts chasing it.
A student of weight 665 N rides a steadily rotating Ferris wheel (the student sits upright). At the highest point, the magnitude of the normal force N on the student from seat is 566 N.
Using a vernier caliper of least count 0.01 cm, the length of a cylinder is measured to be 3.76 cm, and its diameter 1.28 cm. Find the volume of the cylinder. Calculate the probable percent error in the length. Calculate the probable percent error..
Find the magnitude of the acceration of each block. what is the magnitude of the average force exerted on the ball by the wall.
The dispersive power of crown and flint glasses are 0.03 and 0.05 respectively. If diffrence in the refractive indices for blue, calculate the angles of the two prisms for a deviation of 2 degree without dispersion
Two .40 kg soccer balls collide elastically in a head on collision. The first l starts at rest and the second ball has a speed of 3.50 m/s after the collision, second ball is at rest. What is the final speed of the first ball.
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