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An object is placed to the left of a lens, and a real image is formed to the right of the lens. The image is inverted relative to the object and is one-half the size of the object. The distance between the object and the image is 83 cm.
(a) How far from the lens is the object?
(b) What is the focal length of the lens?
An electric motor has a 840-turn coil on its armature. The coil is circular with diameter 17cmand carries 10.0A, ind the maximum torque on the coil when it rotates in a 1.20T magnetic fiel
When a patient is being fitted with contact lenses, the curvature of the patient's cornea is measured with an instrument known as a keratometer. what is the radius of curvature of the patient's cornea
Sam is taking his girlfriend Sally out for a ride in his boat. He starts out at rest. He accelerates with an acceleration of 0.168 m/s^2 for 85.6 s. What is the total time the boat moves
The bunchberry flower has the fastest-moving parts ever seen in a plant.at first , the stamen are held by the petals in a bent position, storing elastic energy like a coiled spring.
A current of 48.6 mA exists in a wire for 1.20 minutes. What is the rate that charge passes a point in the wire
A flexible, circular conducting loop of radius 0.15m and resistance 4.0(omega sign) lies in a uniform magnetic field of 0.25t. determine the magnitude of the emf induced in the loop
A volleyball player's 3.7 kg arm moves at an average angular velocity of 15 rad/s during execution of a spike. what is the average radius of gyration for the arm during the spike
If the charge is 23 mu/C, the velocity is 1500 m/s, find the force (magnitude and direction) on the charge.
In the figure below, a particle moves along a circle in a region of uniform magnetic field of magnitude B = 3.50 mT. What is the radius of the circle
In a certain particle accelerator, protons travel around a circular path of diameter D in an evacuated chamber, What is the mean free path of the gas molecules
If the speed of a particle is increased by a factor of 10, by what factor is its momentum changed, By what factor is its kinetic energy changed
A student m = 81 kg runs at a velocity vi = 2.25 m/s before jumping on a skateboard. After jumping on the board the student has a velocity vf = 1.75 m/s. What is the mass of the skateboard in kg
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