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1) 3.20×1023 nitrogen molecules collide with a 20.0 cm^2 wall each second. Assume that the molecules all travel with a speed of 410 m/s and strike the wall head on. What is the pressure on the wall?
2) The rms speed of the molecules in 1.3 g of hydrogen gas is 1600 m/s.
a. What is the total translational kinetic energy of the gas molecules?
b. What is the thermal energy of the gas?
a length of aluminum wire has a resistance of 20.0 ? at 14.0degc. when the wire is warmed in an oven and reaches
A massive steel cable drags a 20.0kg block across a horizontal, frictionless surface. A 115N force applied to the cable causes the block to reach a speed of 4.30m/s in 2.30s. What is the difference in tension between the two ends of the cable?
The heat of vaporization of ethyl alcohol is about 200cal/g. If 1.30 kg of it were allowed to vaporize in a refrigerator, how various grams of ice would be formed from 0°C water.
The rms speed of the molecules in 1.9 g of hydrogen gas is 1800 m/s. What is the total translational kinetic energy of the gas molecules? (kJ) What is the thermal energy of the gas? (kJ)
200 Joules of heat flows into a 35 g sample. If the temperature increases by 10°C, then what is the heat capacity of the sample
a projectile is fired with an initial speed of 64.8m/s at an angle of 44.3 degrees above th horizontal on a long flat firing range. determine the direction of the projectile
a peice of wood one foot square and one inch thick has a specific gravity of .5. what volume of lead would have to be
A football kicked off at an angle 20° from the ground reaches a maximum height of 4.7 m. What is the initial velocity of the kick
Find the magnitude of total displacement of the object
Two identical spaceships are traveling in the same direction. An observer on Earth measures the first to have speed 0.80c, What is the speed of the second spaceship
1. a diamond has a mass of 56.6 g and the gold ring it is set in has a mass of 125.6 g. how many carbon atoms are
antireflection coatings can be used on the inner surfaces of eyeglasses to reduce the reflection of stray light into
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