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An object is located 40 centimeter in front of a lens of focal length 40 centimeter. A second lens is located 17 centimeter beyond the first. An image forms 48 centimeter past the second lens. Determine the lateral magnification of this system?
An electron of the hydrogen atom is initially in the n = 2energy state. The electron absorbs a blue-violet photon with wavelength of 486 nm. The Rydberg constant is 1.097 x107/m. What is the energy state (n-number) of the electron after the absorptio..
A 52.6-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a velocity of -2.29 m/s. Her hands are in contact with the wall for 1.26 s. Ignore friction and wind resistance.
Two identical lead spheres are hung on thin threads in a vacuum. The temperature of one is 320 K and it radiates 6.0 W of thermal energy. The second sphere has a temperature of 325 K. How much heat does it radiate? At what wavelength is the peak ..
a beam of light is incident from air on the surface of a liquid. if the angle of incidence is 29.0deg and the angle of
A convex lens of focal length 10 cm is placed 40 cm in front of a concave lens of focal length 25 cm.A small object is placed 20 cm in front of the convex lens calculate the location of the final image relative to the second lens.
consider a point charge q 5.0?c point a at distance d1 1.050 m from q and point b at distance d2 0.500 m. if these
A copper (cu) penny has a mass of 3.11 g. The molar mass of copper is 63.5 g/mol. How many atoms of Cu are there ? what fraction of the electrons have been removed
two stones are thrown simultaneously one straight upward from the base of a cliff and the other straight downward from
The rim of .1 wheelchair is rotating at a rate of 65 revolutions per minute. If the radius of the rim is 33.0 cm. what is the rim's rotational velocity in radians per second and what is its linear velocity at the rim?
A 50-g block of copper at -15?C is added to 100g of water in a 71-g aluminum cup. The cup and the water have an initial temperature of 4.0?C. Find the equilibrium temperature of the cup
Two blocks, one of 50 g and the other of 46 g, are connected by a string and hung over a frictionless pulley which has a radius of 5 cm. What is the moment of inertia of the pulley
to avoid hitting a pedestrian a car driver slams on her brakes and comes to a complete stop after skidding 16 m. if the
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