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A certain double-pane window consists of two glass sheet, each 80 cm x 80 cm x 0.30 cm, separated by a 0.30 cm stagnant air space. The indoor surface temperature is 20 deg C, while the outdoor surface temperature is 0 deg C. How much heat passes through the window each second? k= 2 x 10^-3 cal/s cm C for glass and 2 x 10^-4 cal/s cm C for air.
In a single-slit experiment, light of wavelength 500 nm is used to produce a diffraction pattern on a screen 4.0 m away. what is the slit width
450 nm of light falls on a single slit of width 0.30 mm. What is the angular width of the central diffraction peak
Two charges of equal magnitude exert an attractive force of 2.5×10-4 N on each other. If the magnitude of each charge is +3.0? C, how far apart are the charges
A 6.0-kg block is at rest on a horizontal floor. If you push horizontally on the 6.0-kg block with a force of 24.0 N, it just starts to move. What is the coefficient of static friction
A pump lifts 320kg of water per hour a height of 3.5m. find the minimum necessary power output rating of the water pump
An object, 0.75 cm tall, is placed 12.0 cm to the left of adiverging lens (f = -.8.00cm). A converging lens is placed 8.00 cmto the right of the diverging lens. The final image is virtual andis 29.0 cm to the left of the fiverging lens.
Assume a rocketship in deep space moves with constant acceleration equal to 9.8 m/s2, which gives the illusion of normal gravity during the flight. Estimate the time required by a rocketship to attain the speed of light and the distance travelled t..
Monochromatic light is beamed into a michelson interferometer. The movable mirror is displaced 0.36 nm, causing the central spot in the interferometer pattern to change from bright to dark and back to bright 1829 times. Determine the wavelength of..
Light from an argon laser strikes a diffraction grating that has 6600 grooves per centimeter. The central and first-order principal maxima are separated by 0.320 m on a wall 1.00 m from the grating. Determine the wavelength of the laser light.
If a certain mass of water falls a distance of 854 m and all the energy is effective in heating the water, what will be the temperature rise of the water
Do you need to take into account the gravitational forces of the earth and moon on the protons? Why? I was thinking yes since thegravitational force on the moon is 1/6th of the Earth's and wouldaffect the weight.
A 3.1 kg dog stands on a 15.00 kg flatboat at distance D = 6.1 m from the shore. It walks 2.00 m along the boat toward shore and then stops. Assume no friction between the boat and the water, find how far the dog is then from the shore.
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