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The rms speed of the molecules in 1.8 of hydrogen gas is 1600 m/s. What is the total translational kinetic energy of the gas molecules?
Find the minimum thickness of a layer of magnesium fluoride (n = 1.38) on flint glass (n = 1.66) that will cause destructive interference.
A 1300-{rm kg} car rolling on a horizontal surface has speed v = 65 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.8 m.
a 92 kg water skier floating in a lake is pulled from rest to a speed of 12 m/s in a distance of 25 m. what is th net force exerted in the skier, assuming the acceleration is constant.
Amber,Samantha and Tena want to do the ultimate crash test.They set up a ramp with 7 books and run a 800g car down the ramp.The velocity of the car at the end of the ramp is 4.8 m/s. If the 800g ca
What are the forces that act on parts of the standard sewing machines. What other physic mechanisms are involved in a sewing machine?
A test charge (q0 = -9.80 x 10-8 C), with a mass of 1.20 x 10-8 kg, is released from rest at one of the corners of the square. Determine the speed of the test charge when it reaches the center of th
A 0.20kg billiard ball traveling at a speed of 15 m/s strikes the side rail of a pool table at an angle of 60 degrees. If the side rail rebounds at the same speed and angle what is the change in it
A thin film of alcohol lies on a flat glass plate. The reflected light is a minimum for 496 and a maximum for 620. What is the minimum thickness of the film?
Assume that positive x-axis is directed toward the direction of motion of cart 2. What is the speed of the two carts at the moment when their speeds are equal?
What must be the coefficient of static friction to 2 decimal places between you and the surface for you to be saved from the fire?
His average acceleration is 0.635 m/s2, also directed due west. What was his velocity when he began accelerating?
how long would you have to own the energy-efficient model to make up the difference in cost? Neglect interest you might earn on your money.
White light is normally incident on the film. What is the visible wavelength in air that has a maximum intensity after the light is reflected?
Two circular disks spaced 0.50 apart form a parallel-plate capacitor. Transferring 1.90 electrons from one disk to the other causes the electric field strength to be 2.20.What are the diameters of t
A cylinder with a movable piston contains gas at a temperature of 27.0°C, a volume of 3 1.50 m , and an absolute pressure of 5 0.200×10 Pa . What will be its final temperature if the gas i
a 0.25 kg length of aluminum wire is warmed 10.o degree c by and electric current. how much heat was generated by the current?
How fast is the car traveling when it overtakes the truck? Sketch an x-t graph of the motion of both vehicles. Take x=0 at the intersection.
On a cool morning, when the temperature is 12.0 deg Celsius, you measure the pressure in your car tires to be 20.0 psi. After driving 40.0 mi on the freeway, the temperature of your tires is 56.0 de
The rms speed of 1.1g of hydrogen gas is 1800m/s. 500 J of work are done to compress the gas while, in the same process, 1900 J of heat energy are transferred from the gas to the environment. Afterw
Determine whether he gives her a tender embrace or knocks her off her tree by calculating Tarzan's speed just before he reaches Jane.
End A of the bar AB in the figure rests on a frictionless horizontal surface, and end B is hinged. A horizontal force vec F of magnitude 107 {rm N} is exerted on end A. You can ignore the weight of
Assuming that the bond energy holding together a water molecule is typical, use the table below to estimate how many molecular bonds could be broken with this energy bonds.
Is the gravitational force exerted on the rock greater than, less than, or equal to that exerted on the pebble? Justify your answer.
When he looks into one side of the hubcap, he sees an image of his face 33.0 cm in back of the hubcap. He then turns the hubcap over, keeping it the same distance from his face. He now sees an image