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A glass lens has a convex surface with radius 25.0 cm and a concave surface with a radius of 50.0 cm. The glass has index of refraction of 1.51. Calculate the focal length of this lens. Is the lens converging or diverging?
A 2-m3 vessel contains air at 40oC and 236 kPa. The vessel is fed with fresh air until the air inside the vessel reaches 93oC and 1 MPa. Calculate how much air was added to the vessel
An object is 30.0 cm in front of a concave mirror with a 7.0-cm focal length. Determine the image position
A mass m slides without friction on a 1-dimensional track. The mass is moving from left to right with initial velocity v0. Determine the position where the mass will come to rest
A satellite in a circular orbit around the earth with a radius 1.011 times the mean radius of the earth is hit by an incoming meteorite. Calculate the amount of that work converted to heat
A 46.7 g ball of copper has a net charge of 1.5 µC. What fraction of the copper's electrons have been removed
A space traveller whose mass is 115 kg leaves earth. What are his weight and masson earth and in interplanetary space where there are no nearby planetary objects.
A brick is thrown at a speed of 72 mph at a wall that is 15 ft away. How much force does the wall exert on the brick and in what direction
A beaker of mass 1.5kg containing 3.2kg of water rests on a scale. A 3.2kg block of a metallic alloy of density 53400 kg/m is suspended from a spring scale is submerged in water of density 1000 kg/m.
You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the "oars") toward you, compute the magnitude of the force that you exert on the handle
Unpolarized light with I=120 w/m^2 travels in the x direction and passes through a linearly polarizing film oriented in the z direction, What is the final intensity of the beam passing through all three polarizing films
An ice sheet with area 10:0 m x 10:0 m and uniform thickness of 1.20 m floats in the Arctic Ocean. Assume that the density of ice is 917 kg/m3, Find the buoyant force acting on the ice sheet
Mutual induction can be used as the basis for a metal detector. A typical setup uses two large coils that are parallel to each other , find the new value of the induced emf
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