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1.) The drawing shows a thin, uniform rod that has a length of 0.30 m and a mass of 0.080 kg. This rod lies in the plane of the screen and is attached to the floor by a hinge at point P. A uniform magnetic field of 0.27 T is directed perpendicularly into the plane of the screen. There is a current I = 3.8 A in the rod, which does not rotate clockwise or counter-clockwise. Find the angle θ. (Hint: The magnetic force may be taken to act at the center of gravity.)
2.) A particle of charge +7.7 oC and mass 3.40 x 10-8 kg is traveling perpendicular to a 1.8-T magnetic field, as the drawing shows. The speed of the particle is 43 m/s.
(a) What is the value of the angle such that the particle's subsequent path will intersect the y axis at the greatest possible value of y?
(b) Determine this value of y.
An electron is accelerated from rest through a potential difference that has a magnitude of 2.90 × 107 V. FIND the relativistic kinetic energy (in joules) of the electron
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Calculate the average induced voltage between the tips of the wings of an airplane flying above east lansing at a speed of 975 km/h. the wingspan of the airplane is 32.9m.
Diagnostic ultrasound of frequency 3.03 MHz is used to examine tumors in soft tissue. (a) What is the wavelength in air of such a sound wave? (b) If the speed of sound in tissue is 1340 m/s, what is the wavelength of this wave in tissue? (Take the sp..
A softball of mass 0.220 kg that is moving with a speed of6.0 m/s (in the positive direction)collides head-on and elastically with another ball initially atrest. Calculate the velocity of the target ball after the collision
The load and the spring are taken down. Two people pull in opposite directions on the ends of the spring, each with a force of 206 N. Find the length of the spring in this situation
The rocket above has an exhaust gas velocity of 2723 m/s and a burn rate of 5149 kg/s. If it has a mass of 1,000,000 kg what is its initial acceleration to two decimal places?
A 1.10 liter flask contains a certain quantity of ideal gas at 320 K. Then an equal number of molecules of the same gas is added to the flask, after which the absolute pressure is 1.35 times its original value. Define is the final temperature?
A 44.7-kilogram object is pulled 7.5 meters along a horizontal surface with a 130-Newton force at 28o above horizontal. What is the net work done on the object
The flux in a transformer changes at a rate of 0.4 Wb/s. The primary coil has 40 turns and the secondary coil has 500 turns
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