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A 16.0-mW helium-neon laser emits a beam of circular cross section with a diameter of 2.85 mm. (a) Find the maximum electric field in the beam. How would you determine the intensity if you knew the
A rescue helicopter lifts a 70-kg person straight up by means of a cable. The person has an upward acceleration of 0.70 m/s2 and is lifted from rest through a distance of 12 m. a(a) What is the ten
An object undergoing parabolic motion travels 125 m in the horizontal direction before returning to its initial height. If the object is thrown initially at a 30° angle, determine the x componen
In both motions, net work is performed due to the combined action of the forces, and (a) Is more net work done during the dive or the climb? Explain your answer.
Find the wavelength of a particle of mass m and charge q accelerated through a potential difference V for the non-relativistic case and for the relativistic case. (no bullshit copied answers that h
Captain Carmen fires a pistol at captain black but the lead ball misses and hits the oak mast. If the .05kg ball is going a speed of 9 m/s, and the frictional force is 120N, then how deep will the b
If the magnetic dipole moment of the earth has magnitude 8.00 x 1023 J/T and we assume that the radius of the circular path taken by the charged particles is 3.50 x 106 m, what is the current produced
A current is now set up in the rod and the magnitude and direction of the current is such that weight of the rod is now offset and the tension in the springs is relaxed. Determine the magnitude of t
A copper strip 5.0 cm long, 1.3 cm wide and 2.0 mm thick moving in the x-y plane. The strip is in a magnetic field given (in vector form) by B = 4.6 T (-k). The Hall potential VH between points A an
If 60% of U.S. petroleum use goes for transportation, and 1% of this goes for buses, how much oil could be saved per year if all buses were eletrified (assuming the electrical energy was generated
What will a spring scale read for the weight of a 54- woman in an elevator that moves in free fall?
The amount of charge that is induced to flow around the circuit is measured to be 7.0 × 10-3 C. Find the magnitude of the magnetic field.
If the western shoreline is horizontally d2 = 240 m from the peak, what are the distances from the western shore at which a ship can be safe from the bombardment of the enemy ship?
How much energy is lost due to friction during the water slide trip? If the coefficient of kinetic friction is 0.40, and the entire slide took a time of .50 s, then how much power did friction consu
A single conducting loop of wire has an area of 8.0 10-4 m2 and a resistance of 110 Ω. Perpendicular to the plane of the loop is a magnetic field of strength 0.18 T. At what rate (in T/s) must
Find the magnification for the object at distance 34.8 cm. Find the magnification for the object at distance 17.4 cm. Find the magnification for the object at distance 8.7 cm.
Calcultae the strength of the smallest electric field, to be set up over same region, that will allow the proton to pass through undeflected. a) First find the speed of the proton at the end of the
A concave spherical mirror has a radius of curvature of magnitude 17.4 cm. (a) Determine the object position for which the resulting image is upright and larger than the object by a factor of 2.00.
An electromagnetic wave strikes a 2.60 cm2 section of wall perpendicularly. The rms value of the wave's magnetic field is 5.40 10-4 T. How long does it take for the wave to deliver 1900 J of energy t
A proton and an alpha particle, which has twice the charge and four times the mass of the proton, are each accelerated through the same potential difference and enter a region of constant magnetic f
A proton is sent into a region of constant magnetic field, oriented perpendicular to the proton's path. There the proton travels at a speed of 2*10^6 m/s in a circular path of radius 20cm. A) What
Two long parallel wires each carry 3.0A in the same direction, with their centers 2.0cm apart. (a) Find the magnitude of the magnetic field halfway between the wires. (B) Find the magnitude of the m
A 0.144 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.700m/s . It has a head-on collision with a 0.300kg glider that is moving to the left with a speed
The arm contains 95.0 cm3 of blood with a concentration of 4.00 x 1020 Na+ ions per cubic centimeter. If no other ions were present in the arm, what would be the magnetic force on the arm?