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a 30 ohm resistor has a voltage difference of 3 voltz across its leads.
A. what is the current through the resistor?
B. what is the power being dissipated in this resistor?
A duck has a mass of 2.6 kg. As the duck paddles, a force of 0.11 N acts on it in a direction due east. In addition, the current of the water exerts the force of 0.12 N in a direction of 44° south of east. When these forces begin to act, the velocity..
Two point charges are on the y-axis. A 6.0 µC charge is located at y = 1.35 cm, and a -2.20 µC charge is located at y = -1.00 cm. (a) Find the total electric potential at the origin. (b) Find the total electric potential at the point having coordi..
Photons with wavelength 670 nm are capable of producing photoelectrons from a particular substance. Determine the substance's work function and cutoff wavelength
Radioactive isotopes often occur together in mixtures. assume a 480 sample contains , with a half-life of 12 days, and , with a half-life of 4.5 days.
The last piece has 4 times as much mass as each of the other pieces. Illustrate what is the magnitude of the velocity of the last piece?
A uniform magnetic field , with magnitude 1.2 mT, is directed vertically upward throughout the volume of a laboratory chamber. What magnetic deflecting force acts on the proton as it enters the chamber
how much money does it cost to leave a 100 watt light bulb on for 1 hour if electricity sells for 10cents per kW-h. a) 1cent b) 8 cent c) 22 cent d) 44cent e)100 cent
A 13g rifle bullet traveling 150m/s buries itself in a 3.7 kg pendulum hanging on a 2.9 m long string, which makes the pendulum swing upward in an arc. Resolve the horizontal component of the pendulum's maximum displacement.
How several meters away is a cliff if an echo is heard 0.587 s after the original sound? Assume that sound traveled at 343 m/s on that day.
A large, thin plastic disk wth diameter D=3.0 meters carries a uniformlydistributed charge of Q= -3.0 x 10^-5 C, Calculate the magnitude q of the charge on the left circular face of the foil
A projectile is fired with muzzle speed 150m/s, Where does the projectile hit the ground with what speed
A cylinder of brass has a diameter of 3mm and a length of 100mm. What is the stress in the cylinder
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