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A container holds 2.3 mol of gas. The total average kinetic energyof the gas molecules in the container is equal to the kineticenergy of a 7.6x10-3 kg bullet with a speed of 550 m/s. What is the Kelvin temperature of the gas?
A piece of ice of mass 0.0240 kg at an initial temperature of-11.0o C is placed in a well-insulated cup containing0.100 kg of water at 35.0o C. Calculate the equilibrium temperature of this system in degrees Celsius.
a 25 kg box is acted on by a 45 n horizontal force. if the box accelerates at a rate of .75 ms2 what is the coefficient
A train moving at a constant speed of 59.0 km/h moves east for 50.0 min, What is the average velocity of the train during this run
A chemistry student with a mass of 75 kg is riding a steadily moving Ferris wheel. What would the normal force be on the student at the top of the wheel if the wheel's velocity were doubled
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, as measured by this tape on a day when the temperature is 5 (C), is 25.970m. What is the true distance between the points?
Consider a piece of nichrome wire which is attached to a 1.2-mm-diameter aluminum wire, as diagrammed in the figure below. What diameter should the nichrome wire in the figure below be in order for the electric field strength to be the same in..
A diver can change his rotational inertia by drawing his arms andl egs close to his body in the tuck position. After he leaves the diving board in the straight position (with some unknown angularvelocity), he pulls himself into a ball as closely a..
A toy balloon is filled with helium gas He at 1 atm and 28 degree C If the volume of the balloon is 0.024m^3 , how many atoms does it contain
Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If m1 is 3.7 kg and m2 is 9.0 kg, and block 2 is initially at rest 140 cm above the floor, how long does it take block 2 to reach the floor.
The temperature of a gold bar rises by 10.0°C when it absorbs 0.677 kJ of energy by heat. The mass of the bar is 525 g. Determine the specific heat of gold from these data
a blood transfusion is being set up in an emergency room for an accident victim. blood has a density of 1060 kgm3 and a
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that , What is the new range
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