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You have a DC circuit hooked up to a 5.0V battery. A single resistor (R1=20 Ohms) is hooked in series with a pair of parallel resistors (R2=40 Ohms, R3=30 Ohms). What is the current flowing through the 30 Ohm resistor?
A. 76.7 mA
B. 135 mA
C. 58.3 mA
D. 500 mA
E. 315 mA
The power required by an ice maker is 225 W and is the rate at which it does work. The ice maker operates like a refrigerator or an air conditioner and has a coefficient of performance of 3.60.
A 767 kg satellite is in a circular orbit about the Earth at a height above the Earth equal to the Earth's mean radius. Find the period of its revolution
At t = 2.95 second a point on the rim of a 0.195 meter radius wheel has a tangential speed of 48.5 m/s as the wheel slows down with a tangential acceleration of constant magnitude 13.0 m/s2. Find through what angle did the wheel turn between t = 0 ..
Capacitors C1 = 5.04 uF and C2 = 2.05 uF are charged as a parallel combination across a 286 V battery. Calculate the resulting charge on capacitor C2
A billiard ball of mass m = 0.150 kg hits the cushion of a billiard table at an angle of ?1 = 60.0° at a speed of v1 = 3.00 m/s. It bounces off at an angle of ?2 = 63.0° and a speed of v2 = 2.10 m/s. a) What is the magnitude of the change in momentum..
Two mirrors are placed 1.0 m apart, with their surfaces parallel. Suppose that light of intensity Io is initially incident on one mirror, normal to its surface. How long does this take
a 1000-kg car is picking up speed as it goes around a horizontal curve whose radius is 100 m. the coefficient of static
A sled starts from rest at the top of a hill and slides down with a constant acceleration. What is the speed of the sled when it passes the 14.4-m point
A thin glass (n = 1.47)converging lens for which the radii of curvatureare R1 = 15.0 cmand R2 = -13 cm. Determine the area of this image
Thirteen resistors connected across points A and B as shown in the figure. If all the resistors are accurate to 2 significant figures, what is the equivalent resistance between points A and B?
using the classical and relativistic expressions for kinetic energy calculate the range of velocities for a particle of
At one position and time, the magnetic field of an em wave invacuum is 10.0 mT right ( ) and its electric filed is 3.0 MV/mout of the paper. Find the corresponding Poynting vector(direction relative to the paper).
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