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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
A space vehicle is traveling at 5400 km/h relative to the Earth when the exhausted rocket motor is disengaged and sent backward with a speed of 96 km/h relative to the command module. The mass of th
A stretched rubber band has a length of 0.10 m and a fundamental frequency of 446 Hz. What is the speed at which waves travel on the rubber band?
Cart 2 has a flat metal surface for a bumper, and moves toward the bumper of the stationary cart with an initial speed = 0.64 . Assume that positive -axis is directed toward the direction of motion
A piece of aluminum of mass .2kg at temperature 20 degrees Celcius is placed in beaker containing 1.5kg of water at 80 degree celcius. find the final temperature after equilibrium is reached.
Many meteorites have been recovered on Earth. Why are these recovered objects interesting to scientists? What can they tell us about the Solar System?
The coil is pulled out at a steady rate of 2.00 {rm{ cm/s}} traveling perpendicular to the field lines. The region of the field ends abruptly as shown. Find the emf induced in this coil when it is a
A 45-kg crate slides to the left initially at a speed of 5.2 m/s. A rope fulls on it with a tension of 240 N in a direction of 35 degrees above the horizontal to the right. The coefficient of kineti
A block with mass m = 5.5 kg slides down an inclined plane of slope angle 10.9 ° with a constant velocity. It is then projected up the same plane with an initial speed 3.85 m/s. How far up the i