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Four identical resistors are connected to a battery of voltage V=30 V as shown in the figure above. The current I is equal to 0.5 A.
A) what is the value of the resistance R of the resistors?
B) what is the voltage across the lone resistor on the right?
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An elevator cable breaks when a 975 kg elevator is 24.5 m above the top of a huge spring (k = 8.00 x 10^4 N/m) at the bottom of the shaft. Calculate the speed of the elevator just before striking the spring
Determine what is the magnitude of the average force on the wall if the duration of the collision is 0.19 second
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A 3 meter diamter steel excess hatch is located 20 meter (center of gravity) below the water level of an intake structure. What is the total force on the hatch
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When standing a certain distance from a jet on the ground on which all three engines are running at equal power, the sound level is heard at the threshold of pain, 120dB. (A) If the pilot shuts down 2 engines however leaves the 3rd at the same power,..
when a wheel rotates about a fixed axis at a constant rate how do the following quantities change with the distance
A winch cable of negligible mass has a cross-sectional area of 1.6 cm2 and a length of 2.2 m. Young's modulus for the cable is 150 GN/m2. what is the oscillation frequency of the engine block at the end of the cable
A 70 ohm lamp and a 75 ohm lamp are connected in series and placed across a potential of 41 V. What is the voltage drop across the first lamp
A 407- turn solenoid with a length of 29cm and radius of 1.4 cmcarries a current of 2.3 A. A second coil of 4 turns is wrappedtightly about this solenoid so that it can be considered to havethe same radius as the solenoid. Find the change in the magn..
q1. earth takes about 365 days to orbit once around the sun. mercury the innermost planet takes less than a fourth of
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