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Suppose the magnetic field changes uniformly from 0.405 T to 0.220 T in the next 0.684 s.
(a) Compute the induced emf in the coil.
= V
(b) Compute the induced current.
I = A counterclockwise as viewed from above the coil
What is the sound intensity level. One on an Incline--One Hanging A block of mass mA = 4.50 kg on a frictionless inclined plane of angle 30.0° is connected by a cord over a massless, frictionless pulley to the second block of mass mB = 2.80 kg ha..
A man pushes a lawnmower for 13.1 m along a handle that makes a 28.2° angle with the ground. He pushes with a force of 42.8 N even as the force of friction between the lawnmower and the ground is 13.7 N.
A 2,493-kg car is moving down a road with a slope (grade) of 14% at a constant speed of 13 m/s. compute the direction and magnitude of the frictional force
A lamp (R = 148 ), an electric heater (R = 23 ), and a fan (R = 48 ) are connected in parallel across a 117 V line. What is the voltage across the fan
A wooden raft has a mass of 65 kg. When empty it floats in water (density 1000 kg/m3) with 41percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
A ship at sea has its radio transmitting antenna at a 10 m height above the surface of the water. how far from the cliff must the ship be
A Circuit has two identical capacitors with capacitance 4x10^-6 in parallel connected to two identical four ohm resistors in parallel. What is the initial charge on the capacitors
The distance between 2 slits (d=0.155 mm) and a screen is 1.54 m. If the spacing between the 2nd order bright fringe and the 3rd order dark fringe is 3.50 mm obtain the wavelength of the light
Small steel ball bearing with a mass of 17 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.39m. Calculate the horizontal distance ball would travel if the same spring we..
An object is located to the left of a convex lens whose focal length = +40cm. The magnification produced by the lens = 3.0 m. Calculate the distance through which the object must be moved
The left mass (10 kg) has a coefficient of kinetic friction between itself and the table of .25, calculate the contact force that acts between the masses
You are standing on a scale inside an elevator. The scale reads exactly your weight. What could be the velocity of the elevator, What is the acceleration of the elevator
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