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A double slit that is illuminated with coherent light of wavelength 644 nanometers produces a pattern of bright and dark fringes on a screen 6 centimeter from the slits. If the slits are 2783 nanometer apart, find the distance on the screen between the 4th and the 2nd bright fringes on one side of the central maximum?
a high speed cooling fan has a maximum angular speed of 15.0 rad/sec, calculate the angular acceleration when the device goes from idle speed to operational speed
q1. a goldfish in a spherical fish bowl of radius r is at the level of the center c of the bowl and at distance l r2.8
A cylinder and pulley turn without friction about stationary horizontal axles that pass through their centers. A light rope is wrapped around the cylinder, passes over the pulley, and has a 4.00 kg box suspended from its free end.
A pot containing 1.03 liters of water, initially at 19*C, How much heat must be supplied to bring it to a boil
suppose a nefarious person were dumping radioactive waste into a nearby riber or lake. explain how you could determine the consistancy of this waste
A hot air balloon has just lifted off and is rising at the constant rate of 1.30 m/s. Suddenly, one of the passengers realizes she has left her camera on the ground. how much time does it take for the camera to reach her
What is the total mass of the Earth's atmosphere? (The radius of the Earth is 6.37 106 m, and atmospheric pressure at the surface is 1.013 105 N/m2.)
A mass of 500kg, with a velocity of 25m/s, hits a stationary mass of 200kg. The masses stick together after the collision. What is the velocity of the masses after the collision
A 10.0 kg crate is pulled up a rough incline with an initialspeed of 1.5 m/s. The pulling force is 100.0 N parallel to theincline, find the change in kinetic energy of the crate
The coefficent of static friction between the floor of a truck and a box resting on it is 0.33. the truck is traveling at 89.0 km/h. What is the least distance in which the truck can stop
A single strand of wire of adjustable length is wound around the circumference of a round balloon that has a diameter of 25.0 cm, what is the magnitude of the average value of the emf induced in the loop
A battery with an emf of 12.0 V shows a terminal voltage of 10.9V when operating in a circuit with two lightbulbs, What is the battery's internal resistance
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