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A glass windowpane in a home is 0.62 cm thick and has dimensions of 0.8 m 2.0 m. On a certain day, the indoor temperature is 28°C and the outdoor temperature is 0°C.
(a) What is the rate at which energy is transferred by heat through the glass?
(b) How much energy is lost through the window in one day, assuming the temperatures inside and outside remain constant?
In the figure below, a particle moves along a circle in a region of uniform magnetic field of magnitude B = 3.50 mT. What is the radius of the circle
A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.78% upon becoming charged. Determine the effective spring con..
Find the width of the central maximum on a screen located 1.60 m from the slit. Determine the width of the first-order bright fringe
a diverging lens f -13.0 cm is located 24.0 cm to the left of a converging lens f 37.0 cm. a 3.80-cm-tall object
A resistance R and a 3.4-H inductance are in series across a 60-Hz ac voltage. The voltage across the resistor is 34 V and the voltage across the inductor is 39 V. Assume that all voltages in this problem are rms voltages. (a) What is the resistance ..
You push your physics book 1.70{\rm m} along a horizontal tabletop with a horizontal push of 2.80{\rm N} while the opposing force of friction is 0.700{\rm N}
In a local bar, a customer slides an empty beer mug down the counter for a refill, With what velocity did the mug leave the counter
A Light-Dimmer Circuit The intensity of a lightbulb with a resistance of 140 Ohms is controlled by connecting it in series with an inductor whose inductance can be varied from L=0 to L=Lmax. What is the average power dissipated in the lightbulb whe..
question a 10 kg block of ice has a temperature of -8degc. the pressure is one atmosphere. the block absorbs 4.20 106 j
A 1.08 kg mass is at the center of a uniform spherical shell of mass 1.05 1020 kg and radius 1.11 106 m. Find the resultant gravitational force on the mass
A 4.2cm tall object is placed 27cm in front of a spherical mirror. It is desired to produce a virtual image that is upright and 3.0cm tall. What is the radius of curvature of the mirror
Nitrogen forms hydrides. One of them, A, is acidic and contains 2.3% of hydrogen. Another, B, is a base containing 87.5% of nitrogen. In what molar ratio do they combine if it is known that the salt formed by their combination contains 6.7% hydrogen?
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