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A glass windowpane in a home is 0.62 centimeter thick and has dimensions of1.0 m 1.9 meter. On a certain day, the indoor temperature is 21°C and the outdoor temperature is 0°C.
(a) Obtain the rate at which energy is transferred by heat through the glass?
W
(b) Find how much energy is lost through the window in one day, assuming the temperatures inside and outside remain constant?
J
Assume the mass of the beam is negligible when compared with the mass of the floodlight. Find out the force FT provided by the cable. The acceleration of gravity is 9.81 m/s2 .
A satellite is in a circular orbit very close to the surface of a spherical planet. What is density (mass/volume) of the planet
An object is placed 5 cm in front of a spherical mirror. A virtual image is formed 10 cm behind the mirror. What is the magnification of the mirror
A jet airplane in level flight has a mass of8.62104kg, and the two wings have an estimated total area of89.0m2. If the speed of air under the wings is232m/s, what is the speed of the air over the wings
The heels on a pair of women's shoes have radii of 0.42cm at the bottom. If 32 percent of the weight of a woman weighing 580N is supported by each heel, find the stress on each heel.
A box with a membrane down the midddle has 20 N2 moelecules onone side and 50 o2 moelecules on the other side. Calculate the change in entropy once the membrane is broken
a man stands on the roof of a building of height 16.1m and throws a rock with a velocity of magnitude 26.8 m/s, Calculate the maximum height above the roof reached by the rock
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2.0 moles of monatomic gas at atmospheric pressure has a total energy of 7480 J. what is the volume occupied a rigid cylinder by the gas
A express train travels along a straight line between two stations, A and D. Stations B and C are spaced evenly along the line between A and D. The engineer leaves A and accelerates at a constant rate until he passes station B
question1 two boxes of equal mass m are placed one on top of each other. in case 1 an applied force acts on box b while
A harpsichord string of length 1.60 m and linear mass density 26.0 mg/m vibrates at a (fundamental) frequency of 460.0 Hz. What is the speed of the transverse string waves
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