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A strong electromagnet produces a uniform magneticfield of 1.60 T over a cross-sectional area of 0.200 m2.We place a coil having 210 turns and atotal resistance of 23.0 Ω aroundthe electromagnet. We then smoothly reduce the current in theelectromagnet until it reaches zero in 20.0 ms. What is the currentinduced in the coil?
A charging cell phone battery requires a current of 1.60 A and power is dissipated in the battery at 7.52 W. Determine the current drawn from the wall by the charger
A high intensity desk lamp is rated at 45 W and 12 Volts. It contains a transformer in its base that converts 120 V household voltage to the needed level. What is the current in the primary when the lamp is on
a vertical cylinder of cross-sectional area 0.06 m2 is fitted with a tight-fitting friction- less piston of mass 5.4
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.069 V. How much work is done by the electric force
question consider a pair of slits separated by 1.00 micrometers. what is the angle thetablue to the interference
A block has an initial speed V(o) > 0 on a linear trajectory on the surface with friction coefficient u and air resistance (F = cv^2). Derive an equation that will represent the velocity (V) as a function of the position of the block (x). So V(x).
what is the magnitude of the electric field at the point 3.20i - 2.25j 3.85k m if the electric potential is given by v
a steep cliff west of lydias home reflects a 980-khz radio signal from a station that is 68 km due east of her home. if
A 170 g block connected to a light spring with a force constant of k = 4N/m oscillates on a horizontal, frictionless surface. What is the maximum magnitude of the force exerted by the spring during this motion
Two soccer players start from rest, 43 m apart. They run directly toward each other,both players accelerating. How much time passes before they collide
Two wave sources, separatedby 6.00 cm, produce waves - in phase - described by y = 4sin(50πx - 120πt)m. (Assume that these are ripples on thesurface of a pond.) What will be the resultant disturbance (maximum? minimum? something in between?) at a ..
Two balls, of masses = 49 and = 67 , are suspended as shown in the figure. The lighter ball is pulled away to a 66 angle with the vertical and released. suppose that positive axis is directed to the right. What is the velocity of the lighter ball ..
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