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An electron with a speed of 3.55·E5 m/s enters a uniform mangetic field of magnitude 0.0397 T at an angle of 34.5° to the magnetic field lines. The electron will follow a helical path.
a) Determine the radius of the helical path.
b) How far forward will the electron have moved after completing one circle?
A gymnast with mass m1 = 43 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 108 kg and length L = 5 m. Each support is 1/3 of the way from each end. at first the gymnast stands at the left end of..
A car turns around a level ben of radius 12 m to the center of gravity of the car. What is the fastest speed the car can travel at without tending to overturn
Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track.
Tarzan has foolishly gotten himself into another scrape with the animals and must be rescued once again by Jane, What is Jane's (and the vine's) angular speed just before she grabs Tarzan
A simple generator has a 620-loop square coil 21cm on a side. How fast must it turn in the 0.690 T field to produce a 140 V peak output.
A capacitor is connected across the terminals of an ac generator that has a frequency of 370 Hz and supplies a voltage of 15 V. When a second capacitor is connected in parallel with the first one, the current from the generator increases by 0.27 A. D..
You push on the chair with a force of = 35.0 directed at an angle of 43.0 below the horizontal and the chair slides along the floor.Using Newton's laws, compute the magnitude of the normal force that the floor exerts on the chair.
An electron moves in the positive x-direction a distance of 2.38 m in 2.95 x10-8 s, bounces off a moving proton, and then moves in the opposite direction a distance of 1.63m in 3.53x 10-8 s.
A bullet of mass .004 kg is fired horizontally into a wooden block of mass 1.3 kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.2. The bullet remains embedded in the block, which is observed to..
An ion source is producing 6Li ions, which have mass 9.99 x10-27 kg and charge +e. The ions are accelerated by a potential difference of 30 kV and pass horizontally into the region in which there is a uniform vertical magnetic field of magnitude B..
In response to a stimulus, membrane can become permeable to Na ions. As Na ions rush into the cell, the interior of the cell reaches an electric potential of about 40 rm mV.
What is an average power output of the laser. What is the rms value of the electric field in the beam.
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