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A slab of a thermal insulator with a cross-sectional area of 120 cm2 is 3.00 centimeter thick. Its thermal conductivity is 8.00 × 10-2 W/(m⋅K); If the temperature difference between opposite faces is 77.0oC, find how much heat flows through the slab in one day?
Bored, a boy shoots his pellet gun at a piece of cheese that sits, keeping cool for dinner guests, on a massive block of ice. obtain the coefficient of friction between the cheese and ice
A particle moving along the x-axis with constant speed has adisplacement of 14 m at t = 1.00 s and a displacement of 42 m at 8.00 s. Plot the displacement versus time graph and determine the particles speed.
A typical red blood cell subtends an angle of only 1.8×10^-5 rad when viewed at a person's near-point distance of 25 cm. find the magnitude of the angle subtended by the red blood cell
A child places a picnic basket on the outer rim of a merry-go-round that has a radius of 4.2 m and revolves once every 33 s. What is the speed of a point on that rim
1 an eighteen-wheeler weighing in at 16800 kg. is lumbering along at a modest 15ms. with a direction of 100 degrees
A turntable has moment of inertia 0.0300 kg m2 and is rotating at 25.0 rev/min. A 0.300 kg ball of clay is dropped vertically onto the turntable and sticks at a point 0.100 m from the center. What is the new rate of rotation of the turntable?
A person driving her car at 46.0 km/hr approaches an intersection just as the traffic light turns yellow, How far from the intersection will she be when the light turns red
A 60 kg person jumps from rest off a 5 m high tower straight down into the water. Determine the magnitude of the average forces that the water exerts on the diver
A small circular hole 7.00 in diameter is cut in the side of a large water tank, 25.0 below the water level in the tank. The top of the tank is open to the air.
A thin film of alcohol (n=1.36) lies on a flat glass plate(n=1.51). When monochromatic light, whose wavelength can bechanged, is incident normally, What is the minimum thickness of the film
What is the net force acting on a 5-kg objest falling on earth, what is the mass of object on moon
A thin, uniform, metal bar, 3m long and weighing 85 N, is hanging vertically from the ceiling by a frictionless pivot. Find the angular speed of the bar just after the collision
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