mina_03
12-16-2009, 09:46 PM
Hey guys,
I know you guys are probably all studying of exams right now but my friend is in a dire situation. Her brother passed away last week and she has a physics assignment she has to do, the dean won't let her defer it any longer than friday. So if anyone can help on the questions on the 4 remaining questions it would be greatly appreciated.
8. A charge of –4.00 μC is fixed in place. From a horizontal distance of 55.0 cm, a particle of mass 2.50 × 10–3 kg and charge –3.00 μC is fired with an initial speed of 15.0 m/s directly toward the fixed charge. How far does the particle travel before it stops and begins to return back?
13. A galvanometer of coil resistance 50.0Ω deflects full scale for a current of 3.50 mA. What series resistance should be used with this galvanometer to construct a voltmeter which deflects full scale for 35.0 V?
14.When connected in series to a 110-V line, two resistors use one-fourth the power that is used when they are connected in parallel. If one resistor is 2.0 kΩ, what is the resistance of the other?
16. A 9.0μF and 4.0μF capacitors are connected in parallel,and this combination is connected in series with a 12.0 μF capacitor.
b.If 32 V is applied across the whole network, calculate the voltage across each capacitor.
I know you guys are probably all studying of exams right now but my friend is in a dire situation. Her brother passed away last week and she has a physics assignment she has to do, the dean won't let her defer it any longer than friday. So if anyone can help on the questions on the 4 remaining questions it would be greatly appreciated.
8. A charge of –4.00 μC is fixed in place. From a horizontal distance of 55.0 cm, a particle of mass 2.50 × 10–3 kg and charge –3.00 μC is fired with an initial speed of 15.0 m/s directly toward the fixed charge. How far does the particle travel before it stops and begins to return back?
13. A galvanometer of coil resistance 50.0Ω deflects full scale for a current of 3.50 mA. What series resistance should be used with this galvanometer to construct a voltmeter which deflects full scale for 35.0 V?
14.When connected in series to a 110-V line, two resistors use one-fourth the power that is used when they are connected in parallel. If one resistor is 2.0 kΩ, what is the resistance of the other?
16. A 9.0μF and 4.0μF capacitors are connected in parallel,and this combination is connected in series with a 12.0 μF capacitor.
b.If 32 V is applied across the whole network, calculate the voltage across each capacitor.