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A long, straight wire of length 1.3 m carries current I = 3.1 A. If a magnetic field of magnitude B = 1.7 T is directed perpendicular to the wire, what is the magnitude of the force on the wire?
Take the initial direction of motion to be the positive direction. (Indicate the direction of the acceleration by the sign of your reply.)
A three level laser has energy levels E 1=1.50 eV, E 2=2.50 eV, and E 3=3.50 eV. Level E 2 is the metastable state. What is the lasing wavelength
An unstretched spring has a length of 0.30 m. while the spring is stretched to a total length of 0.60 m, it supports traveling waves moving at 4.5 m/s. How fast would waves travel on this spring if it is stretched to 0.90 m.
rotates to provide an "artificial gravity" of 3.10 m/s2 for persons who walk around on the inner wall of the outer rim. Find out the rate of the wheel's rotation in revolutions per minute that will produce this effect.
Two automobiles drive in the same direction next to the highway. Each moves initially at speed v = 30 meters per second, (that's 67.11 miles per hour) and the distance between them is D meters.
Since the vehicles stick together after the collision and take the direction of the large truck (greater momentum), I guessed that the small car would have a greater change in kinetic energy.
The wheel of a car has a radius of 0.320 m. The engine of the car applies a torque of 288 N · m to this wheel, What is the magnitude of the static frictional force
Two objects are charged and their centers are separated by 31.6 cm. Object A is charged to 61 nC and object B is charged to 54 nC. What is the magnitude of the electrostatic force between them.
Two point charges of equal magnitude are 7.3cm apart. At the midpoint of the line connecting them, their combined electric field has a magnitude of 40N/C . Find the magnitude of the charges.
A missile of mass 1.10 102 kg is fired from a plane of mass 5.10 103 kg initially moving at a speed of 3.50 102 m/s. determine is the final velocity of the plane
their debt flotation costs are currently estimated to be 4% of the issue's value. GST's federal-plus -tax rate is 40%. Illustrate what is the dollar floatation cost on the new issue?
using a large shiny curved surface (mirror). you notice that an object is upright and exactly 2/3 of the height of the object when it is 150m away from the mirror. what is the image distance
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