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A square loop of wire carries a current I. Current is flowing in a counterclockwise direction as shown.
1) What is the direction of the magnetic field at A?2) What is the direction of the magnetic field at B?3) What happens to the magnitude of the magnetic field as you move away from the loop?4) If this loop is placed in a uniform magnetic field pointing into the page, what is the direction of the net force on the loop?5) Now the loop is placed near a horizontal wire with current moving to the right. If the horizontal wire is right below the loop (in the plane of the page), what is the direction of the net force on the loop?6) If the current in the square loop and horizontal wire are both 2 A, the square loop has side lengths of 10 cm each, and the horizontal wire is 5 cm from the bottom side of the square loop, what is the magnitude of the net force on the loop?
The middle C string on a piano is under a tension of 944N. The period and wavelength of a wave on this string are 3.82 ms, calculate the linear density of the string
The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.53 m and 1.03 m, respectively. The respective rotational speeds are 449 rev/min and 4147 rev/min. Compute the speeds of the tips of both rotors.
A toboggan approaches a snowy hill moving at 10.9 m/s. The coefficients of static and kinetic friction between the snow and the toboggan are 0.470 and 0.320, Find the acceleration of the toboggan as it is going up the hill
A 10cm*10cm*10cm block of steel (ρ steel =7900kg/m^3) is suspended from a spring scale. The scale is in nektons. What is the scale reading if the block is in air?
Two soccer players start from rest, 43 m apart. They run directly toward each other, both players accelerating. How much time passes before the players collide
question1a 350 piano slides 3.4 down a 34 incline and is kept from accelerating by a man who is pushing back on it
Antwan raised a 12.0-N physics book from a table 75 cm above the floor to a shelf 2.15 m above the floor. What was the change in the potential energy of the system?
If 100 physics students each give off 100 W as they sit in the classroom taking an exam, estimate the temperature increase of the room during the hour-long test
Compute the magnitude of an electric field, E, for a single point charge of 5 Coulombs that experiences a force of 10Newtons. Compute the electric field strength, E, when there is a distance of 5 cm and a voltage of 6 Volts.
A cosmic ray interacts for a mere 11fs with its detector. Having just learned about the uncertainty principle, Find the minimum uncertainty in that energy
With a wooden ruler you measure the length of a rectangular piece of sheet metal to be 12 mm. What is the ratio of the rectangle's width to its length
Light rays in a material with index of refraction 1.29 can undergo total internal reflection when they strike the interface with another material at a critical angle of incidence. Find this material\'s index of refraction
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