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Through nuclear magnetic resonance scanning in a hospital the protons(q=1.60*10^19 c) in the atoms of a patient’s body are subjected to a magnetic field of 75 T. Compute the magnitude of the magnetic force acting on the protons if we assume that they vibrate with a speed of 10^4 ms-1
A 3.02 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=14.3 N at an angle θ= 15.5° above the horizontal, as shown.
a 2.0microf capacitor and a 4.0microf capacitor are connected in series across 1000 v. the charged capacitors are then
A 0.17kg ball is thrown vertically upwards with a velocity of 34m/s at the edge of a 22m cliff. Neglect air resistance. calculate The height to whcih the ball rises above the cliff
a 210 g bucket containing 12.5 kg of water is hanging from a steel guitar string with mass m 8.58 g density p 7750
A hydrogen atom initially in the ground state absorbs a photon, which excites it to the = 4.00 state, estimate the frequency of the photon
A parallel-plate capacitor with circular plates of radius0.082 m is being discharged. At what rate is the electric field between the plates changing
The ideal gas law is one example of an equation of state. It relates the pressure, volume, temperature and amount of gas. Another equation of state which better models real gases is the van der Waals equation: [P+a (n/V)2] (V – nb) =nRT. In the van d..
The mass of the Space Shuttle orbiter is 8.8 x 104 kgand the period of its orbit is 82 minutes. Estimate thekinetic energy of the orbiter and the work done on it by gravitybetween the launch and orbit. (
objects a and b are both positively charged. both have a mass of 200 g but a has twice the charge of b. when a and b
Two very long solenoids have thesame length, but solenoid A has 15 times the number of turns, 1/4the radius, and 7 times the current of solenoid B. Calculate the ratio of the magnetic field inside of A to that inside B.
A tank holds a 1.44-m thick layer of oil that floats on a 0.96-m thick layer of brine. Both liquids are clear and do not intermix. what is the angle that the ray in the air makes with the vertical
A golf ball strikes a hard, smooth floor atan angle of θ = 26.4° and, as the drawing shows, rebounds at the sameangle. The mass of the ball is 0.037kg, and its speed is 45 m/s just before and after striking thefloor. What is the magnitude of the i..
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