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Q1. Three resistors are connected in series across a 15-V power supply. If the potential drop across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the potential drop (in volts) across resistor 3?
Q2. A 213-O and a 221-O resistor are connected in series across an unspecified power supply. If the current through the 213-O resistor is 0.25 A, what is the current (in A) through the 221-O resistor?
Q3. A battery supplies 0.75 A to three parallel resistors. The current through the first resistor is 0.25 A and the current through the second resistor is 0.23 A. What is the current (in A) through the third resistor?
Q4. A 121 O resistor and a 198 O resistor are both connected in parallel across a power supply. If the potential drop across the 121 O resistor is 14 V, what is the potential drop (in V) across the 198 O resistor?
When viewed by an observer on the Earth, light from a distant galaxy is Doppler shifted to the red such that the ratio of the unshifted frequency to the observed frequency is 1.8
A sled is pulled with a horizontal force of 20 N along a level trail, and the acceleration is found to be 0.35 m/s2. find the coefficient of kinetic friction between the sled and the trail
A circuit consists of a battery with a closed circuit, a terminal voltage of 12.0 V, and 1.0-?, 2.5-?, 5.5-?, and 7.0-? resistors connected in series, Calculate the equivalent resistance of the circuit
An eagle (mA = 4.3 kg) moving with speed vA = 7.8 m/s is on a collision course with a second eagle (mB = 5.6 kg) moving at vB = 10.2 m/s in a direction perpendicular to the first
An object is placed 11.1 cm in front of the cornea. (The cornea is thin ans has approximately parallel sides so that the reflection that occurs as light travels from air to cornea to aqueous humor is essentially the same as though the aqueous humo..
a small object which has a charge q 8.2 microc and mass m 9.80 x10-5 kg is placed in a constant electric field.
Two blocks are in contact on a frictionless table. A horizontal force F is applied to m1. If m1 = 1.66 kg, m2 = 3.72 kg, and F = 6.25 N, find the magnitude of the force between the two blocks
An electron drops from the L shell to the K shell and givesoff an X-ray with a wavelength of 0.0200 nm. What is the atomic number of this atom
Close a door by pushing on the doorknob. Close the door again using approximately the same force but applying it 5 centimeters away from the hinges. Try again by applying the force on the edge of the door in a direction pointing toward the hinges. Su..
Find the power in sideband, total power, carrier power, carrier rms voltage and the peak voltages for carrier and sidebands of AM transmitter.
The electric motor of a model train accelerates the train from rest to 0.680 m/s in 34.0 ms. Find the average power delivered to the train during its acceleration
A bat can detect small objects, such as an insect, whose sizeis approximately equal to one wavelength of the sound the batmakes. what is the smallest insect a bat can detect
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