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An incident ray with an angle of 60 degrees strikes a rectangular glass block. Given that the refractive index of glass if 1.5, calculate the angle of refraction.
A 50 gram ball enters a a pendulum with mass 200 g. The pair then swings up to a height of 12 cm. Find the velocity at which the pair move immediately after the collision
A wheel rotating about a fixed axis through its center has a constant angular acceleration of 4 rad/s^2. In cerain 4s interval the wheel turns through an angle of 80 rads.
Consider a Boeing 777-200 airplane of wing span 60.93 m cruising horizontally at Mach 0.785 (about 828 km/h) due north in a region where the earth's magnetic field is .98*10
A 1.50 kg mass is hung from a vertical spring with k=30.0 N/M, what is the magnitude and direction of the tensile force acting on the spring
Your toaster has a power cord with a resistance of 2.2×10?2 connected in series with a 9.9 nichrome heating element. How much power is dissipated in the heating element
question the total angular momentum of a flywheel having a rotational inertia 0.0924 kg-m2 about its axis decreases
A boat observed by an observer on the shore moves at right angle to the motion of a stream at 4m/s. what is the speed of the boat with respect to the water
Consider the skateboarder in the figure below. If she has a mass of 49 kg, an initial velocity of 23 m/s, what is the work done by friction on the skateboarder
During winter, a baseball player works out with a 50-kgpitching machine. The ground is covered with a thin layer of ice, What is the recoil velocity of the machone
Suppose a single electron orbits about a nucleus containing two protons (+2e), Determine the magnitude of the electron's centripetal acceleration
A contact lens is made of plastic by an index of refraction of 1.60. The lens has an outer radius of curvature of +2.07 cm and an inner radius of curvature of+2.56 cm. What is the focal length of the lens?
Consider a pump that is required to compress air in a factory. The cylinder in the pump has an inner diameter of 2.00 cm and length 60.0 cm. Calculate the volume and temperature of the compressed air
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