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A proton by initial velocity components v(x) = 1.30 x 10^6 m/s, v(y) = 0, v(z) = 2.10 x10^4 m/s is placed in a constant and uniform magnetic field in the positive z-direction by magnitude 0.600 T. The proton subsequently travels in a helical trajectory. Discover the initial magnetic force on the proton, its initial acceleration due to magnetism, the radius of the helix and the z-component of the proton's displacement through one revolution.
A light bulb at point x in the frame of reference O blinks on and off at intervals, ?t = t2 - t1. Use the expressions for the Lorentz transformations to derive the expression for the time dilation relations ?t and ?t'
A 4.00 {rm A} current runs through a 12 gauge copper wire (diameter 2.05 {rm mm}) and through a light bulb. Copper has 8.5 times 10^ {28} free electrons per cubic meter.
A gas expands while 502 J of energy is added to it as heat. The expanding gas does 422 J of work on its surroundings.
A runner weighs 635 N (about 140 lb), and 72% of this weight is water. How many moles of water are in the runner's body? moles
In a high speed elevator, passengers accelerate straight upward from rest to 15 km/hr in 5.25 seconds. What is the average acceleration of the passengers in this elevator?
A person runs 3.0 miles to the northwest (45 degrees with respect to the WE line), then 3.5 miles south. What is the persons net displacement
The disk is laid on top of the open upper end of the pipe perfectly centered on it, and allowed to coll. Find the temperature of the aluminum disk when the disk falls into the pipe
The left ventricle of the heart accelerates blood from rest to avelocity of +27cm/s. If the displacement of the blood during the acceleration is +1.8 cm, determine its acceleration (incm/s2).
If a particle undergoes SHM with amplitude.21 m, what is the total distance it travels in one period
q1. to stretch a relaxed biceps muscle 2.8 cm requires a force of 25 n. find out the youngs modulus for the muscle
Consider the work done by gravity and a spring: Discover an expression for the work done by gravity on a mass m as it is raised a distance h vertically.
A wheel 32.1 cm in diameter accelerates uniformly from 227 rpm to 363 rpm in 5.11 s. How far will a point on the edge of the wheel have traveled in this time
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