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A light ray is incident upon a plane interface between two materials. The ray makes an incident angle with the normal to the surface of 30 degrees in a material with index of refraction 1.2. If the second material has an index of refraction 1.7, what is the refracted angle (in degrees) in that material? Express the answer in degrees with one decimal place.
A massless string runs around two massless, frictionless pulleys. An object with mass m = 12.20 kg hangs from one pulley. A force F is exerted on the free end of the string. What is the magnitude of the force F if the object is lifted at the constant..
A large capacitance of 1.80 mF is needed for a certain application, Calculate the volume of Teflon alone in the capacitor
A golf ball is struck with a five iron on level ground. It lands 92.7 away 4.10 later. find the magnitude of the initial velocity
Water flows over a section of Niagara Falls at the rate of 1.1 x10^6 kg/s and falls 55 m. How much power is generated by the falling water.
A uniform electric field of magnitude 380 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.60 cm. What is the work done by the field on the electron
A cockroach of mass m lies on the rim of a uniform disk of mass 3 m that can rotate freely about its center like a merry-go-round. find the angular velocity of the cockroach-disk system
An automobile tire has a radius of 0.330 m, and its centre moves forward with a linear speed of v= 15.0 m/s. Find the angular speed of the wheel.
A 2.0 m-long cylindrical steel wire with a cross-sectional diameter of 4.0 mm is placed over a light, frictionless pulley, with one end of the wire connected to a 5.0 kg object and the other end connected to a 3.0 kg object. By how much does the w..
What is corresponding free energy change
Light of 650 nm is incident on two slits. A maximum is seen at an angle of 5.74° and a minimum of 6.46°. What is the order m of the maximum
a ball is thrown upward from the roof of a building, passes the roof going down three seconds later, and hits the ground one second after that. how tall is the building? how fast did the ball strike the ground?
A generator has a square coil consisting of 188 turns. The coil rotates at 118 rad/s in a 0.222-T magnetic field. What is the length of one side of the coil
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