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Determine the average value of the translational kinetic energy of the molecules of an ideal gas at (a) 47.6°C and (b) 144°C. What is the translational kinetic energy per mole of an ideal gas at (c) 47.6°C and (d) 144°C?
A skier of mass 68.4 kg glides down a hill of slope 26.5 degree at constant speed. If she travels a distance 35.0m down the hill, what is (a) the work done by friction and (b) the coefficient of friction between her skis and the slope?
transverse waves are being generated on a rope under constant tension. determine the factor by which the required power
A Carnot engine operates between 230 °C and 120 °C, absorbing 6.30 multiplied by 104 J per cycle at the higher temperature. How much work per cycle is this engine capable of performing
Calculate the pressure exerted on the skin by an acupuncture needle of radius 0.100 mm applied with a force of 4.80 N
one billiard ball is shot east at 2.4 ms . a second identical billiard ball is shot west at 0.90 ms . the balls have a
A fire engine moving to the right at 40 m/s sound its horn (frequency = 500 Hz) at the two vehicles shown in the figure. The car is moving to the right at 30 m/s, while the van is at rest. (a) What frequency is heard by the passenger in the car?
A spaceship passes you at a speed of 0.950c. You measure its length to be 50.2 m. How long would it be when at rest
Assuming that the magnetic field of the earth has magnitude of 5x10^-5 T at the equator and is parallel to the surface of the earth and that the current in the wire flows toward east
A box is sliding with a speed of 4.50 m/s on a horizontal surface when, at point P, it encounters a rough section. Use the work-energy theorem to find how far this box slides before stopping
A 290-mL spherical flask contains 0.075 mol of an ideal gas at a temperature of 345 K. What is the average force exerted on the walls
How large an inductance, in henrys (H), should be connected in series with a 120 V, 60 W lightbulb if it is to operate normally when the combination is connected across a 240 V, 60 Hz line? (First determine the inductive reactance required. You may n..
Use approximate relationships to find the electric field at a point 4 cm from the axis, measured radially outward from the midpoint of shell.
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