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In a series R-L-C circuit, the phase angle is 40.0, with the source voltage leading the current. The reactance of the capacitor is 400 and the resistance of the resistor is 200 . The average power
label the 6 nodes consecutively. A 10V battery is connected to nodes 1 and 3. (in other words, there are 2 resistors between the battery on one side of the hexagon, and 4 on the other side of the he
If the time period in part B were cut in half, what would be the new maximum emf value?
The positive lead of a voltmeter is palced on the battery side of the 10 Ohm resistor, and the negative voltmeter lead is placed on the common junction of the resistors. What does the voltmeter disp
If the string leaves the axle after the mass has descended 3m, what torque must be applied to the flywheel to bring it to rest in 5 revs?
An electron is shot through a tiny hole in the positively charged plate. What is the minimum speed (in meters/second) it needs to reach the negative plate?
If a layer of water is placed over the glass, what is the minimum angle of incidence on the glass-water interface that will result in total internal reflection at the water-air interface?
After he lands on the raft, the raft, with him on it, moves away from the pier at 1.9 m/s. What was Tyrone's speed as he ran off the end of the pier?
What magnitude of vi enables the projectile to just reach a maximum height of 2.2RE, measured from the center of the Earth in km/s? Ignore air friction as the projectile goes through the Earth's atm
Use Ampère's law to derive an expression for the magnetic field as a function of r (the distance from the central axis) at points between the two conductors (R1<r<R2i). Use this express
The impact compresses the spring 15.0 cm. The spring constant is 300 N/m. a) Find the magnitude of the block's velocity just after impact. b) What was the initial speed of the bullet?
Because of its chemical similarity to calcium, 90/38 Sr can collect in the bones and present a health risk. What percentage of 90/38 Sr present initially still exists after a period of 60 years?
A diffraction grating is illuminated simultaneously with red light of wavelength 660 {\rm nm} and light of an unknown wavelength. The fifth-order maximum of the unknown wavelength exactly overlaps t
A soldering iron uses an electric current in a wire to heat the tip. A transformer with 100 turns on the secondary coil provides 55 W at an rms voltage of 28 V. What is the resistance of the wire in
A proton gun fires a proton from midway between two plates, A and B, which are separated by a distance of 71.0 cm; the proton initially moves at a speed of 170.0 km/s toward plate B. Plate A is kept
The speed of light in water is 2.25 x 10^8 m/s. using Einstein's thinking, explain whether it is possible for a particle to travel through water at a speed greater than 2.25 x 10^8 m/s.
The hydrogen atom consists of a proton of mass 1.67 x 10^-27 kg and an orbiting electron of mass 9.11 x 10^-31 kg. In one of its orbits, the electron is 5.3 x 10^-11 m from the proton. What is the m
Derive the equations for the equivalent resistance of resistors in parallel and in series. What happens to the current as more resistors are added to a series circuit? to a parallel circuit?
A proton is released in a uniform electric field, and it experiences an electric force of 2.8 multiplied by 10-14 N toward the south. What are the magnitude and direction of the electric field?
Derive a formula for the magnetic field at an arbitrary point on the z-axis. Note by symmetry that B(x) = Bz(z) k.
If the height gain of each step was 0.20 m, and the man's mass was 57.0 kg, what was his average power output during the climb? Give your answer in both watts and horsepower.
A juggler performs in a room with a ceiling 1.95 m above hand level. What is the maximum upward speed (in m/s) which she can give a ball without letting it hit the ceiling?
The magnetic field at distance 3R from the center of the wire is 0.77 T. Determine the magnetic field at distance R/2 from the center of the wire.
A circular wire of radius 5.19 cm has a current of 3.81 A flowing in it. The wire is placed in a uniform magnetic field of 5.27 mT. a) Determine the maximum torque on the wire.