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Q. A Carnot engine performs work at the rate of 380 kW when using 730 kcal of heat per second. If the temperature of the heat source is 560 C, at what temperature is the waste heat exhausted?
Q. The speed of a transverse wave on a string is 418m/s, even as the wavelength is 0.162 m. The amplitude of the wave is 2.58mm. How much time is necessary for a particle of the string to move throughout a total distance of 1.27km?
A 700 N car traveling at 25m/s.The breaks are applied suddenly and the car slides to a stop. The average breaking force between the tires and the road is 7100 N.How far will the car slide once the breaks are applied.
An airplane is flying with the velocity of 85.0 m/s at an angle of 20.0 degrees above the horizontal. When the plane is a distance 107 m directly above the dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far..
What focal length does the lens need. how many meters will the car have moved before it begins to slow down.
what is the magnitude of the force between the two charges. The scale of vertical axis is set by vs = 5.10 m/s. What is the coefficient of kinetic friction between block and floor.
A 35.0-g bullet moving at 475 m/s strikes a 3.2-kg bag of flour that is on ice, at rest. The bullet passes through the bag, leaving at 225 m/s. How fast is the bag moving while the bullet exits.
A car takes 9 s to go from v = 0 to v = 75 m/s at approximately constant acceleration. If you wish to find the distance travelled using the equation d = 1/2 at2, what value should you use for a.
The period of oscillation of an object in a frictionless tunnel running through the Earth is 84.3 min. What is the time of oscillation of an object in a similar tunnel on the Moon.
Why is surface wind always directed at some angle across sea-level isobars toward lower pressure? Why is the surface wind directed across the sea-level isobars at a greater angle in Madison than over the middle of Lake Michigan.
A 4 kg fish swimming 3 m/s swallows an absent minded 2 kg fish at rest. What is the speed of the large fish instantly after lunch.
From what height will you have to drop the rock on Earth so that the fall-time on both planets is the same.
assume a spherical planet P has a uniform density of 4.72*10^3 kg/m^3 and a radius R=3604 km. For a parcel that weighs 64 N on the surface of the (spherical) earth.
Light is an electromagnetic wave and travels at a speed of 3.00 x 10^8 m/s. The human eye is most sensitive to yellow-green light, that has a wavelength of 5.45 x 10^-7m. How you find the frequency of this light.
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