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The electron gun in a traditional television tube fires electronsof kinetic energy 25 keV at the screen in a circular beam 0.22 mmin diameter; 5.6 multiplied by 1014 electrons arrive eachsecond. Calculate the magnitude of the magnetic field produced bythe beam at a point 2.0 mm from the beamaxis.
A small, 100g cart is moving at 1.2 m/s on an air track while it collides with a larger, 1.00kg cart at rest. After the collision, the small cart recoils at .850 m/s. what is the speed of the large cart after the collision.
A (20.1+/- 0.2)ohm resistor is connected in parallel with a (39.9+/- 0.4)ohm resistor. The resistors are connected to a (2.90+/-0.03)V battery, Calculate the total current in the circuit
A simple pendulum is constructed from a mass of 2 kg and a massless string of length 3.5 m. The pendulum is pulled 5.5 cm to the right and released to start the motion. What is the period of the pendulum
a robot unloads a completed component from a machine and places it on a gravity conveyor. the conveyor accelerates from
A UFO streaks across the sky at a speed of 0.90c relative to the earth. What length does the person measure for the UFO when it lands
Suppose in the double-slit arrangement, d = 0.150mm, L =120cm, %u03BB =833nm, What is the path difference %u03B4 for the rays from the two slits arriving at point P
A simple harmonic oscillator takes 12 s to undergo 5 complete vibrations. Find (a) the period of its motion, (b) the frequency in hertz and (c) the angular frequency in radians per second.
A bronze cannon ball with a mass of 3.5 kg is fired vertically from a small cannon and reaches a height of 25.0 m. find the maximum height reached by the cannon ball
At what angle are the photons scattered such that the electron’s velocity is 1% of the speed of light when the incoming light has wavelength λ = 0.05nm? For the same incoming photons, what is the photon scattering angle such that the electrons hav..
In this problem you will consider the balance of thermalenergy radiated and absorbed by a person. Assume that the person is wearing only a skimpy bathing suit of negligible area. how much thermal power P does the human body radiate
A dolphin at Seaworld is to jump through a hoop held in the air by a trainer, At what speed did the dolphin leave the water
34g of copper pellets are removed from a 300 degrees celcius oven and immediately dropped into 70mL of water at 22 degrees celcius in an insulated cup. What will the new water temperature be
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