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A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = -28.0 cm). An object is placed to the left of the converging lens, and the final image produced by the two-lens combination lies 19.8 cm to the left of the diverging lens. How far is the object from the converging lens?
How does the force on the layer compare with gravitational force on the layer if the layer has a radius of 100 solar radii, and a mass of .1 solar mass and the rest of the star has a mass of 1 solar mass
An electric motor turns a flywheel by a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel. The flywheel is a solid disk with a mass of 50.0kg and a diameter of 1.00m.
A charge of +47 uC is located at (0, 2.2 m). A charge of -63 uC islocated at (0, 1.6m). For these questions assume that the electricpotential energies are zero at infinity. What is the electric potential at the orgin? What is the electric field (ma..
In February 2004, scientists at Purdue University used a highly sensitive technique to measure the mass of a vaccinia virus (the kind used in smallpox vaccine). What is the mass of the virus in femtograms
the displacement in meters of a particle moving in a straight line is given by s t2 - 8t 18 where is measured in
Assuming that average separation between two protons in 12C is equal to the nuclear diameter, compute the coulomb force of repulsion and gravitational force of attraction between the protons. If the nuclear potential seen by the protons is 50 MeV for..
When a parachute opens, the air exerts a large drag force on it.This upward force is initially greater than the weight of the skydiver and, thus, slows him down. Suppose the weight of the skydiver is 902 N and the drag force has amagnitude of 1030..
A 1600kg car takes a 50-m-radius unbanked curve at 17m/s, What is the size of the friction force on the car
A mass of 10 kg is attached to the 20 cm spring (k = 5000N/m).Initially, horizontally located spring and the mass are at rest. Determine how much the spring was stretched
For the Atwood's machine, suppose the masses have an initial speed of v = 0.22 m/s and that m2 is moving upward. How high does m2 rise above its initial position before momentarily coming to rest, given that m1 = 3.5 kg and m2 = 3.1 kg.
A sledge loaded with bricks has a total mass of 17.0 kg and is pulled at constant speed by a rope. What is the increase in internal energy in the sledge and the surface due to friction
Suppose the AC voltage from a power company is 20000v, two transformers are used to step down the voltage. The first transformer has 5000 turns in the primary coil and 250 turns in the secondary coil; the second transformer has 4000 turns in the p..
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