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Objectives:
Conceptual objective: To study some basic quantities in alternating current (AC) circuits.
Experimental objective: To perform measurements in circuits with capacitors and inductors.
Prediction questions:
Question 1: The electrical energy is supplied to the US households as sine wave at frequency of 60 Hz and rms value of the voltage very close to 120V. Calculate the amplitude of the voltage.
Question 2: Electrical cooling fans use an internal capacitor for better utilization of the electrical energy. A typical value of these capacitors is 1 RF. Calculate the capacitive reactance of this capacitor when used in an US household.
Question 3: Calculate the resonant frequency in a series RLC circuit with C=30 pF, R=200 Q, and L=2 mH.
A 1830 kg car traveling at 12.9 m/s collides with a 2980 kg car that is initally at rest at a stoplight. find the coefficient of kinetic friction between the cars and the road
At a party, a stereo system comprises of two identical balanced speakers located right next to each other, and they are playing atmaximum volume. A drunken participant trips over one of thespeaker wires and disconnects it leaving the one remaining..
compare the energy consumption of two commonly used items in the household. calculate the energy used by a 1.40 kw
A person is standing on a level floor. His head,upper torso, arms and hands together weigh 438N and have a centerof gravity that is 1.17m above the floor. obtain the location of the center of gravity for entire body
the radius of electron is 10 -18 m . what is the minimum momentum transfer order of magnitude required to resolve the
The gravitational force exerted on a baseball is 2.23 N down. A pitcher throws the ball horizontally with velocity 14.5 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 169 ms. The ball starts from rest.
A copper wire wrapped into a coil is hooked to a 3.00V battery and a switch. At t=0 the switch S is closed. At t=20 seconds the current in the circuit is 24mA. After a long time the current in the circuit is 50mA.
Glenn starts his day by walking around a circular track with radius 48 m for 15 minutes. what is his angular position with respect to where he starts
A tank of volume 0.5 m^3 contains oxygen at a measure of 1.5 x 10^6 Pa and a temperature at 20 degrees C. How many kilomoles of oxygen are in the tank
An emf is induced in a conducting loop of wire 1.14m long as its shape is changed from square to circular, Find the average magnitude of the induced emf if the change in shape occurs in 4.23s
I want to put a 1500 g satellite into orbit around a spherical asteroid with a mass of 3x10^13 kg and a density of 5000 kg/m^3. Since it has no atmosphere, What is the radius of the asteroid
In a needle biopsy, a narrow strip of tissue is extracted from a patient using a hollow needle. Rather than being pushed by hand, to ensure a clean cut the needle can be fired into the patient's body by a spring. Find the maximum speed of the needl..
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