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A 5.00 cm-tall object is placed 50.0 cm in front of a converging lens whose focal length is 25.0 cm. How tall will the image be (use + if the image is upright and - if it is inverted) in cm?
A block of wood of mass 2 kg is suspended by long, light strings and is at rest. A bullet of mass 40 g, strikes and remains in the block, causing it to swing. The utmost height of the block above its rest position is 51 cm.
A copper bar 2.5 m long has a circular cross section of radius 2 cm. One end is kept at 80oC, what is the temperature gradient along the length of the bar
A 0.141 kilogram glider is moving to the right on a frictionless, horizontal air track with a speed of 0.850 m/s. Compute the magnitude of the final velocity of the 0.309 kg glider
A glass is half-full of water, with a layer of oil (n =1.46) floating on top. A ray of light traveling downward during the oil is incident on the water at an angle of 70.8°. Take the refraction index of water to be 1.333. (a) Decide the critical angl..
Some of the first "microscopes" were really single-lens magnifying glasses made by Leeuwenhoek. These devices had magnifications as high as 200.
If the magnetic field were to be directed perpendicular to the particle instead of in the X direction as given, what would be the radius of the particle's resulting circular motion?
When light of wavelength 370 nm falls on a barium surface, electrons having a maximum kinetic energy of 0.86 eV are emitted. Find values of the work function of barium
A rotating object starts from rest at t = 0 s and has s constant angular acceleration. At a time t = 7.0 s the object has an angular velocity of omega = 16 rad/s. What is the angular velocity at time t = 14 s?
Sodium ions (Na+) move at 0.843 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1200 Hz. What is the speed of the bird
The unpolarized light of intensity I(not) is passed through two polarizers with axes oriented at 30degrees from each other. What intensity of light emerges
The metallic sphere on top of a large van de Graaf generator has a radius of 2.0 m. Suppose that the sphere carries a charge of 3x10-5 C. How much energy is stored in this device
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