Object position

Simple Harmonic motion: Object moving in simple harmonic motion given by x = A cos (2*pi*ft.) has a frequency of 15.0 Hz and an amplitude of 8.0 mm. What is the position of the object at 0.05 s?

Circuit problem

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Electrical field question

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Charged particles problem

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AC circuits

(See attached file for full problem description with proper symbols) --- 4. The maximum current in a 21 µF capacitor connected to an ac generator with a frequency of 120 Hz is 0.12 A. (a) What is the maximum voltage of the generator? V (b) What is the voltage across the capacitor when the current in the circuit is ...continues

AC circuits

(See attached file for full problem description with proper symbols) --- 5. A large air conditioner has a resistance of 7.7 and an inductive reactance of 35 . If the air conditioner is powered by a 60.0 Hz generator with an rms voltage of 240 V, find each of the following. (a) the impedance of the air conditioner (b ...continues

AC circuits

(See attached file for full problem description) --- 6. An ac voltmeter, which displays the rms voltage between the two points touched by its leads, is used to measure voltages in the circuit shown in Figure 24-32. In this circuit, the ac generator has an rms voltage of 6.00 V and a frequency of 35.0 kHz. The inductance in ...continues

AC Circuits: Currents at different frequencies

(See attached file for full problem description) --- 7. An ac generator supplies an rms voltage of 5.00 V to an RC circuit. At a frequency of 20.0 kHz the rms current in the circuit is 37.0 mA; at a frequency of 30.0 kHz the rms current is 50.0 mA. What are the values of R and C in this circuit? ---

Seven physics problems

(See attached file for full problem description) --- 1. A parallel-plate air capacitor has a capacitance of 920 pF. The charge on each plate is 2.55µC a. What is the potential difference between the plates? b. If the charge is kept constant, what will be the potential difference between the plates if the separation is doubl ...continues

Electromagnetism: Force on moving charge in a magnetic field

1. In an experiment with cosmic rays, a vertical beam of particle that have charge of magnitude 3e and mass 12 times the proton mass enters a uniform horizontal magnetic field at 0.250 T and is bent in a semicircle of diameter 95.0 cm a) Find the speed of the particles and the sign of their charge. b) Is it reasonable to ignor ...continues