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A 10 lb. bowling ball rests on a shelf in a bowling alley. Another 10lb. ball sits on the floor below the shelf. Which of the bowling balls contains more gravitational potential energy?
The density of petrol is 730 kg/m^3 at 0 degrees C. Its average coefficient of expansion is 9.60 * 10^-4 degrees C. Assuming you have a 45 litre full tank, how many extra grams of petrol would you get
The specific heat of granite is 0.80 kJ/kg x C. If 106 MJ of heat are added to a 100-kg granite statue of James Prescott Joule that is originally at 18 degrees C
Light of wavelength 632 nm is incident on a double slit. The angle between the central bright fringe and the second dark fringe is 4.90°. Determine the separation d of the slits
Suppose a 100m diameter stony (p= 3 g/cm^3) meteroid impacts the Earth with a speed of 20km/s. Assume all kinetic energy goes into the creation of an atmospheric blast wave.
A 65 g ice cube at 0°C is heated until 60 g has become water at 100°C and 5.0 g has become steam at 100°C. How much energy was added to accomplish the transformation?
The fourth harmonic is four times the frequency of the fundamental. A node is a position on a standing wave of minimum displacement. Frequency is inversely proportional to wavelength, wave speed constant
If a blue filter is placed over a light source aperture so that the incident rays are blue and these rays pass through a green filter, what color should the reflected rays be? Based on these observations, what makes the green filter appear green?
Estimate how much power is saved if the voltage is stepped up from 240 V to 1200 V and then down again, rather than simply transmitting at 240 V
A solid uniform 3.25kg cylinder, 60.0cm in diameter and 12.4cm long, is connected to a 1.50kg weight over two massless frictionless pulleys, How fast is the cylinder turning at this instant
A dielectric-filled parallel-plate capacitor has plate area = 30.0cm^2 , plate separation = 5.00mm and dielectric constant = 5.00. The capacitor is connected to a battery that creates a constant voltage = 10V.
In exercising, a weight lifter loses 0.152 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. find the change in the internal energy of the weight lifter
Two air track carts move along an air track one behind the other. Cart A has a mass of 0.450 kg and moves toward the right with a speed of .850 m/s and behind cart A is cart B. It has a mass of 0.300 kg and moves toward the right with a speed of 1.23..
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