A20.0 ω, 15.0 ω, and 7.00 ω resistor are connected in parallel to an emf source. a current of 7.00 a is in the 15.0 ω resistor. calculate the equivalent resistance of the circuit. answer in units of ω.
what is the potential difference across the source?
answer in units of v.
calculate the current in the 20.0 ω resistor. answer in units of a.
Answers: 1
Physics, 22.06.2019 15:30
Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples
Answers: 1
Physics, 22.06.2019 18:30
Blood pressure the total amount of blood the heart pumps in one minute 2. cardiac output the number of times your heart beats in a minute 3. dilate the amount of blood that the heart can pump in a single beat 4. heart rate the force exerted on the walls of the blood vessels by the blood that moves through them 5. stroke volume to widen or get larger in size
Answers: 3
Physics, 22.06.2019 23:40
Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earth’s geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earth’s field would have little effect on the bacteria. take the earth’s field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)
Answers: 1
A20.0 ω, 15.0 ω, and 7.00 ω resistor are connected in parallel to an emf source. a current of 7.00 a...
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