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A proton is accelerated through a potential difference of 10 000V and then enters a uniform magnetic field as shown below.
a) Sketch the path that the proton will follow. How much work is done on the proton once it enters the field?
b) If the strength of the B-field is 0.2T,what is the radius of the path? (ans: 7.2 cm)
a guitar string is tuned to an e4 that is the standard tune for the thinnest string on a guitar. if the scale length is
three forces are applied to an object as indicated in the drawing. force 1 has a magnitude of 27.0 newtons 27.0 n and
The wavelength of the laser beam used in a compact disc player is 549 nm. Estimate the spacing between the slits of the grating
What is the minimum area of a block of ice 0.305m thick floating on water that will hold up an automobile of mass 1120kg? Does it matter where the car is placed on the block of ice?
A steady torque of 23-N•m is applied to a grindstone whose moment of inertia is 0.130 kg•m2. Using energy principles, and neglecting friction, determine the angular speed after the grindstone has made 13.0 revolutions.
In a certain RL time constant circuit, it takes 135 msec for the current to reach maximum after the switch is closed.
when a 0.20-kg block is suspended from a vertically hanging spring it stretches the spring from its original length of
question a diffraction pattern forms when light passes through a single slit. the wavelength of the light is 665 nm.
A hiker starts at his camp and moves the following distances while exploring his surroundings: 55.0 m north, 2.75x10^2 m east, Find his resultant displacement from camp
Two people are holding up the ends of a 4.75-kg wooden board that is l = 2.00 m long. A m = 3.00-kg box sits on the board, 0.50 m from one end. What forces do the two people exert.
The mean molecular weight of air is 29; that is, the mass of kilomole of air is 29 kg.
An astronaut is traveling in a space ship that has a speed of0.99c relative to the Earth. What pulse rate does the Earth observer measure
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