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Visitors at a science museum are invited to sit in a chair tothe right of a full-length diverging lens (f1 = -2.60 m)and observe a friend sitting in a second chair, 1.90 m to the leftof the lens. The visitor then presses a button and a converginglens (f2 = +4.10 m) rises from the floor to a position2.40 m to the right of the diverging lens, allowing the visitor toview the friend through both lenses at once. Find (a) the magnification of the friend when viewed through the diverging lensonly and (b) the overall magnification of the friend when viewed through both lenses. Be sure to include the algebraic sign (+ or -)with your answers.
The first stage of a space vehicle consumed fuel and oxidizerat the rate of 1.70 104kg/s, with an exhaust speed of 2.85103 m/s. Calculate the thrust produced by these engines
The electric field between the plates of a parallel-plate capacitor is horizontal, uniform and has a magnitude E. What is the mass of the object
A large tub is filled to a depth of 50.0 cm with fresh water. Then oil of density 750.0 kg/m3 is poured onto the water. What is the depth of the oil layer
Nearly plane waves of C02 laser light of wavelength l = 10.6 m emerge from a circular aperture 10 cm in diameter. If the C02 laser light is to be examined on a target in the far field
total electric charges q are distributed uniformly onver the half spherical shell. Calculate the electric field at the center o of the sphere
A small circular hole 7.00 in diameter is cut in the side of a large water tank, 25.0 below the water level in the tank. The top of the tank is open to the air.
A 2.30-g bullet embeds itself in a 1.40-kg block, which is attached to a spring of force constant 780N/m, Find the time for the bullet-block system to come to rest
A 2.00-g charged particle is released from rest in a region that has a uniform electric field = (160 N/C) . After traveling a distance of 0.520 m in this region, the particle has a kinetic energy 0.080 J. Determine the charge of the particle.
A building with a weight of 5.200e+7 N is built on a concrete foundation with an area of 1300 m2, By what vertical distance does the foundation compress
What is the coefficient of rolling friction μr for the tire under low pressure?
why does a tile or wooden floor feel colder ahtn a carpeted floor when both are at the same temp? (assume both below room temp) which would feel hotter if they were at the same temperature above room temperature? why?
You throw a stone vertically upward with an initial speed of 5.8 from a third-story office window. If the window is 12 above the ground, find the time the stone is in flight
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