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Initially at rest, a small copper sphere with a mass of 2.77·10^-6 kg and a charge of 5.47·10^-4 C is accelerated through a 6930 V potential difference before entering a magnetic field of magnitude 3.87 T, directed perpendicular to its velocity. What is the radius of curvature of the sphere's motion in the magnetic field?
An airplane traveling at half the speed of sound emits a sound of frequency 5.45 kHz. At what frequency does a stationary listener hear the sound
You win a lottery prize consisting of all the gold you can put into a backpack with dimensions 68 cm x 29 cm x 15 cm
A parallel light beam containing two wavelengths, 480nm and 700nm, strikes a plain piece of glass at an angle of incidence of 60 degrees. Determine the angle between the two beams in the glass
q1. a 3.10-m-long 310 kg steel beam extends horizontally from the point where it has been bolted to framework of a new
Humid air breaks down in a sufficiently strong electric field, What is the magnitude of the electrostatic force for an electron and for an ion with a single electron missing
A string with both ends held fixed is vibrating in its third harmonic. The waves have a speed of 186 m/s and a frequency of 225 Hz, Calculate the maximum transverse velocity of the string at this point
A car that weighs 13800.0 N is initially moving at a speed of 42.0 km/hr when the brakes are applied and the car is brought to a stop in 2.4 s. Find the magnitude of the force that stops the car
A uniform plank of length 5.8 m and weight 202 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the Illustrataing). To what distance x can a person who weighs 441 N walk on the overhanging part of t..
If a 20kg mass hangs from the right side of a massless bar 5 meters in length and a 5kg mass hangs from the left side of the bar
A metal rod is 40.127cm long at 20.3 oC and 40.149cm long at 45.0 oC. Calculate the average coefficient of linear expansion of the rod's
A 640-g hollow ball 21cm in diameter is suspended by a wire and is undergoing torsional oscillations at a frequency of 0.78 Hz
A diver in a swimming pool shines a flashlight up from below the water%u2019s surface at an angle of 30.0 degrees from the normal. at what angle to the normal does the light leave the water
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