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A coil has an inductance of 0.45 H and a resistance of 42 ohms. The coil is connected to a 5.6 V ideal battery. When the current reaches half of its maximum value, find the following.
a. At what rate is its magnetic energy being stored in the conductor?
b. At what rate is the energy being dissipated?
c. What is the total power that the battery supplies?
A blue car of length 4.41 m is moving north on a roadway that intersects another perpendicular roadway (see figure below). The width of the intersection from near edge to far edge is 30.0 m.
Calculate the number of bright fringes per centimeter. At what two locations on x-axis (xpositive, xnegative) is the potential zero.
Air is streaming horizontally past a small airplanes wings such that the speed is 50m/s over the top surface and 30 m/s past the bottom surface. the plane has a mass of 300 kg and a total wing area of 5 m^2(both wings).
A rectangle has an area of 28.14 cm2. When both the length and width of the rectangle are increased by 1.80 cm, Calculate the length of the longer of the two sides of the initial rectangle
Two point charges, Q1 = -7 and Q2 = 2 are located between two oppositely charged parallel plates. The two charges are separated by a distance of x = 0.33m. Assume that the electric field produced by the charged plates is uniform and equal to E = 6..
On a cello, the string with the largest linear density (1.54 10-2 kg/m) is C string. This string produces a fundamental frequency of 63.4 Hz and has the length of 0.795 m between the two fixed ends. Find tension in the string.
The invaders’ thermometer shows the temperature on earth to be 58 °I. Using logic similar to that in Example 1 in the text, illustrate what would this temperature be on the Celsius scale?
An isotope of the element Thallium, Tl-206, undergoes beta decay with a half life of 3.1 minutes. what mass of the isotope will be left after 9.3 minutes have elapsed
You win a lottery prize consisting of all the gold you can put into a backpack with dimensions 68 cm x 29 cm x 15 cm
A proton with a velocity in the positive x-direction enters a region where there is a uniform magnetic field B in the positive y-direction, The electric field should be in the...which direction
A wooden block weighing 7 N is at rest on top of a wooden desk. The coefficient of static friction between the block and the desk is 0.41. Find out the minimum horizontal force required to move the block if the following occurs.
Two lenses, one converging with focal length20.0cm and one diverging with focal length? 11.5cm , are placed 25.0?cm apart. Determine the magnification of the final image formed
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