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A small object is placed to the left of a convex lens and on the optical axis. What is the position of the image formed by the lens
You have 31m of wire, which you want to use to construct a 45cm diameter coil whose magnetic field at its center will exactly cancel the earth's field of 0.55 gauss
An x-ray beam (25 MeV) strikes a proton at rest and scatters the x-rays through an angle of 100 degrees. What is the wavelength of the scattered x-rays
Calculate the mass difference in atomic mass units, between the helium nucleus and its constituent nucleons
A helium gas cylinder has a pressure of 28 atm. What fraction of the original amount of helium remains in the cylinder
When people exercise they shed heat to the environment by sweating and radiating. calculate the rise in body temperature after 1 hour
A 35 mm camera using a standard 50.0 mm lens is focused on a 1.80 m tall person who is standing 3.25 m from the lens. What is the height of the flower%u2019s image on the film
You wish to design a telescope using an objective lens with f(objecive) = 0.75 m. If you use an eyepiece with a magnification of 20, what is the length of the telescope
A student uses an audio oscillator of adjustable frequency to measure the depth of a water well. He reports hearing two successive resonances at 50.5 Hz and 59.5 Hz. How deep is the well
An object is in front of a converging lens (f = 0.370 m). The magnification of the lens is m = 3.60. Through what distance should the object be moved
Two converging lenses are separated by 23.60 cm. The focal length of each lens is 11.00 cm, Determine the final image distance relative to the lens on the right
What is the rms current in a series RC circuit if = 3.2 kOhm, C = 0.8 microfarads (uF) , and the rms applied voltage is 130V at 79Hz? What is the power dissipated by the circuit
The Pfund series results from emission/absorption of photons due to transitions of electrons in a hydrogen to/from the n = 5 energy level from/to higher energy levels
A jet flying faster than the speed of sound creates a shock cone of high pressure air. What will be the angle of the shock cone
"Fat Man," the atomic bomb dropped on Nagasaki at the end of World War II released approximately 88 x 10^12 J of explosive energy
10g of lead (specific heat = 0.128 J/g C) at 100 C is placed on a glacier of ice at 0 C. How much ice melts
The coil wand pendulum starts swinging with an angle of 30 degrees with the vertical. After it passes through the magnetic gap, What is the energy lost by the pendulum
A person sees a distant lightning strike, then 4.5 seconds later he hears the thunder clap. If it is 35 degrees Celsius, how far away was the lightning strike
A whale sends an undersea signal to its mate and then gets a response 4.5 seconds later. How far away is the whales mate
A person is watching water waves at the ocean and they notice the peak to peak distance between the waves is 3.4 m. How fast are the waves going
A transverse traveling wave on a cord is represented by D = 0.25 sin (6.8x + 28t), Determine maximum and minimum speeds of particles of the cord
An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with constant 5.55 106 N/m, What was the speed of the car before impact
A child's toy consists of a piece of plastic attached to a spring in the figure below. The spring is compressed against the floor a distance of 2.00 cm, estimate the force constant of the spring
To fit a contact lens to a patient's eye, a keratometer can be usedto measure the curvature of the cornea-the front surface of theeye. Determine the radius of curvature of the cornea
Let a coil wand pendulum start swinging with an angle of 30 degrees with the vertical. Calculate the heights of the pendulum at the start and final positions