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A helium-filled balloon has a volume of 0.010 m3. The temperature in the room and in the balloon is 20oC
a. Obtain the average kinetic energy of a particle of helium inside the balloon?
b. Obtain the average speed of a particle of helium inside the balloon?
c. Obtain the thermal energy of the helium in the balloon? Suppose that due to stretching of the balloon the pressure inside it is 1.1 atm.
The Concorde travelled 8000 km among two places in North America and Europe at an average speed of 375 m/s. What is the total dissimilarity in time between two similar atomic clocks, one on the airplane and one at rest on Earth through a one-way trip..
An ideal gas at 12.4 °C and a pressure of 1.41 x 105 Pa occupies a volume of 2.85 m3. How many moles of gas are present
A +30 µC charge is placed 40 cm from an identical +30µC charge. How much work would be required to move a +0.41µC test charge from a point midway between them to a point 5cm closer to either of the charges?
secret agent samantha bond 36.50 kg has just ignited her jet powered skis at the foot of a 10.0 degree slope that rises
a near-sighted person might correct his vision by wearing diverging lenses with focal length 55 cm. when wearing his
A coil has a DC resistance of 90 ? and animpedance of 200 ? at a frequency of 1.5 kHz. What is the inductance of the coil
A ball of circumference 72.7 cm and mass 605 g is forced to the bottom of a swimming pool and then released. After initially accelerating upward, it rises at a constant velocity. (The density of water is 103 kg/m3.)
A baton twirler is twirling her baton in a horizontal circle at a rate of 3.35 revolutions per second. Calculate the induced EMF between the center and one end of the baton
A vertical spring is 10.0 cm long when supporting a 20.0 kg mass, and it is 12.0 cm long when supporting a 32.0 kg mass. What is the length of spring with zero load
a 3250 kg open railroad car coasts along with a constant speed of 10.6ms on a level track. snow begins to fall
A person driving her car at 46.0 km/hr approaches an intersection just as the traffic light turns yellow, How far from the intersection will she be when the light turns red
a 2500 kg truck moving at 10.00 m/s strikes a car waiting at a traffic light, hooking bumpers. what was the mass of the struck car
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