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Q. A 302g ball is tied to a string. It is pulled to an angle of 6.00 degrees and released to swing as a pendulum. A student with a stopwatch finds that 17 oscillations take 12.0s. How long is the string?
Q. A new experiment is created with the screen at a distance of 2 m from the slits (with spacing 0.08 mm). What is the distance between the second order bright fringe of light with l = 690 nm and the third order bright fringe of light with l = 404 nm? (Give the absolute value of the smallest possible distance between these two fringes: the distance between bright fringes on the same side of the central bright fringe.)
A bucket filled with water has a mass of 54 kg and is hanging from a rope that is wound around .050 m radius stationary cylinder. if the cylinder does not rotate and bucket hangs straight down, what is the magnitude of the torque the bucket produc..
The parallel metal plate of a capacitor is separated by a distance of 0.5cm and is connected to a 90v battery. Discover an electric field between them and the surface charge density .
What time would an observer on one of the two planets measure for the similar trip. Find out the coordinates of the center of gravity for this system.
A thin layer of magnesium fluoride (n = 1.38) is used to coat a flint-glass lens (n = 1.61). What atleast thickness should the magnesium fluoride film have if the reflection of 669 nm light is to be suppressed? suppose that the light is incident a..
At 500°C, the diffusion coefficient of Zn in brass is 4.10-17 m2.s-1. What is the flux of Zn moving down the rod.
At time t=0 a grinding wheel has an angular velocity of 28.0 rad/sec. It has the constant angular acceleration of 35.0 rad/sec^2 until a circuit breaker trips at time t=1.80. From then on, the wheel turns through an angle of 433 as it coasts to the s..
What will be the equilibrium temperature when a 223 g block of copper at 258 C is placed in the 178 g aluminium calorimeter cup containing 874 g of water at 13.2 C.
You have just built a house out in the country and it comes to your attention that you need to install a lightning rod. Being naturally curious you ask a hardware salesperson how lightning rods work and they accurately tell you.
A mass of 1.7kg stretches a vertical spring 0.313 m. If the spring is stretched an additional 0.13m and released, how long does it take to reach (new) equilibrium position again.
A pendulum of length 1.5 m is held out to point A. At the vertical position, an overhang effectively cuts the length of the pendulum by an amount equal to 1.09 m. (That is, 1.0 m is no longer free to swing.) How long does this pendulum take for one o..
A ladder 7.09 m long leans against the side of a building. If the ladder is inclined at an angle of 79.50° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building.
Find the pressure at pump discharge, rate of flow of a pump, energy required by the pump, and size of the pump motor.
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