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A glass window pane has an area of 3.00 m and a thickness of 0.600 cm. If the temperature difference between its faces is 25.0°C, what is the rate of energy transfer by conduction through the window?
A motorcycle is travelling at a constant velocity of 30ms. The motor is in high gear and emits a hum of 700Hz. find the period of the sound waves emitted from the motorcycle
A diver springs upward from a board that is 4.50 m above the water. At the instant she contacts the water her speed is 12.5 m/s and herbody makes an angle of 84.9 ° with respect to the horizontal surface of the water. Determine her initial velocit..
An interferometer can be used to measure very small distances, much like a caliper but with a far greater precision. How far did the movable arm of the interferometer travel
You took a job as a space station scientist. On a spacewalk you get separated from the station. At what speed will you move back toward the station
A 3.00-kg block starts from rest at the top of a 33.0° incline and slides 2.00 m down the incline in 1.75 s. Find the frictional force acting on the block
A 56 kg pole vaulter running at 12 m/s vaults over the bar. Her speed when she is above the bar is 1.3 m/s. determine her altitude as she crosses the bar
You have a lens whose focal length is 12.7 cm. You place an object on the axis of the lens at a distance of 6.25 cm from it. How far is the object\'s image from the lens
A laboratory technician drops a 0.0840-kg sample of unknown material, at a temperature of 100.0°C, into a calorimeter. Compute the specific heat capacity of the sample
A 10 g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s. How much energy was lost in the collision
What is the total negative charge, in coulombs, of all the electrons in a small 1.05 gram sphere of carbon? One mole of carbon is 12 grams
At room temperature a Nitrogen molecule,with mass of 4.76*10^-26 kg typically has a kinetic energy of 5.6*10^-21 J. How fast is it moving
The speed of a light wave in a certain transparent material is 0.669 times its speed in a vaccum. Which is 3.00 * 108 m/s. what is its wavelength in nanometers
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