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A coil with an inductance of 0.2 H also has a resistance of 10 Ω because it is made of wire. So, if we connected the coil to a 110V, 60hz, voltage the coil acts as a series LR connection. What is the current in the coil? What is the power loss of the coil?
Monochromatic light of wavelength 675 nm falls on a slit. If the angle among the first bright fringes on either side of the central maximum is 21.5°, estimate the slit width.
A 2.80 kg object moves in a plane with velocity components vx = 14.0 m/s and vy = -84.0 m/s as it passes through the point (x,y) = (0.7,-4.2) m. What is the magnitude of its angular momentum relative to the origin at this moment
when an 81.0-kg adult uses a spiral staircase to climb to the second floor of his house his gravitational potential
A jewel smith wishing to buff a finished piece of jewelry attaches a buffing disk to his drill. What is the period of rotation of the disk now
You wind up and throw a 10 kg medicine ball horizontally with a speed of 1.3 m/s directly at your 24-kg little brother. find the common speed of the ball-brother composite
A sprinter of mass 66.2 starts his race by pushing horizontally backward on the starting blocks with a force of 190 Determine his initial acceleration as he leaves the blocks
When the magnetic flux through a single loop of wire increases by 30 Tm^2, an average current of 40 A is induced in the wire. over what period of time did the flux increase
A group of particles is traveling in a magnetic field of unknown magnitude and direction. What is the direction of this the magnetic force
A 2-kg block is released from rest at the top of an inclined planeof angle θ = 30°. The block is located distance l =20 cm away from a spring that has spring constant k =300 N/m, as shown. The coefficient of friction between the block and plane is..
A spring with spring constant 12.5 hangs from the ceiling. A 400 ball is attached to spring and allowed to come to rest. It is after that pulled down 6.80 and released. What is the time constant if the ball's amplitude has decreased to 3.90 after 57...
A humanitarian aid package is dropped from a plane flying horizontally 500m above the ground with a speed 100m/s. What is the speed of the package at time of impact? (Calculate the total speed, not a horizontal or vertical projection.)
Apply Gauss s law to determine the magnitude and direction of the electric field at the radial point. r = 30 cm from the common center of spheres.
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