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Compare and contrast the average kinetic energy of 0.5 L of coffee at 34°C, 0.5 L of coffee at 38°C, and 0.25 L of tea at 43°C. 4. Compare the thermal energy of 0.5 L of coffee at 38°C and 0.25 L of coffee at 38°C. 5. Compare and contrast the shape and volume of water as it changes state: a. A 6 cm3 piece of ice is placed in a beaker. b. The beaker is heated to more than 0°C and the ice melts in the beaker. c. The liquid water is heated to above 100°C and eventually evaporates.
The electric potential energy stored in the capacitor of a defibrillator is 110 J, and the capacitance is 91 μF. What is the potential difference across the capacitor plates?
A full can of soda has a mass of 0.412 kg. It contains 3.32 10-4 m3 of liquid. Assumingthat the soda has the same density as water, find the volume ofaluminum used to make the can
A layer of oil (n = 1.45) floats on an unknown liquid. A ray of light originates in the oil and passes into the unknown liquid. What is the index of refraction of the unknown liquid
To estimate the muzzle speed of a blow dart, fire dart straight up into the air and time how long it takes to come back down. Roughly half of that time is the time for object to decelerate from its initial velocity to motionless. Estimation the in..
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.
an astronaut swings a pendulum on the moon, which has a length of 1 m and oscillation period of 4.916 seconds. by what factor is the earth's gravity stronger
A football is kicked off at a speed of 24 m/s at 30 degree about the horizontal and lands on the field. What is the horizontal distance from the starting point
two movers push horizontally on a refrigerator. one pushes due north with a force of 150 n and the other pushes due
Certain criteria have been met which suggest that an intangible asset has been created. Illustrate w hat amount should be recognized as research and development expense in 2011 using U.S. GAAP?
A beam of protons at an accelerator creates a current of 120 mu/A. how many protons strike the target in 30.0 s
Waves travel along a 100-m length of string with a mass of 55 g, which is held taut by a tension of 75 N. What is the speed of the waves
The temperature of the surface of the sun is 6000K and its radius is 696,000Km. How much energy is the sun radiating into space per second
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