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Q1. The resistor in a circuit has a resistance of 148 ohms.
What capacitance should be used in this circuit if the time constant is to be 3.4 ms?

Using the capacitance determined in part (a), compute the current in the circuit 6.8ms after the switch is closed. Suppose that the capacitor is uncharged initially and that the emf of the battery is 9.0V

Q2. A projectile is fired horizontally from a gun that is 50.0 m above flat ground; emerging from the gun with a speed of 140 m/s. (a) how long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground? (c) What is the magnitude of the vertical component of its velocity as it strikes the ground?

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  • Category:- Physics
  • Reference No.:- M9159226

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