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1. Calculate the resistance of a piece of nichrome wire 2.00 m long. the cross-sectional area of the 20 gauge wire is 0.5176 mm2 and the resistivity Ï = 1.00 x 10-6Ω•m.
A small glass bead has been charged to +30.0nC. A metal ball bearing 1.30cm above the bead feels a 1.90×10?2N downward electric force. What is the charge on the ball bearing?
An unfortunate subject receives doses of the following types of radiation: ? rays (20 mrad, RBE=1), electrons (45 mrad, RBE=1), What is the total biologically equivalent dose received
Even as exploring a sunken ocean liner, principal researcher found the absolute pressure on the robot observation submarine at the level of the ship to be about 413 atmospheres. The density of seawater is 1025kg/m^3.
If the orientation of the spacecraft is to be changed by 30.0°, for what time interval must the gyroscope be operated.
In vacuum, two charged particles lie 2.5 cm apart. Find the magnitude and direction of the electric field at a point midway between the two particles. (One has a charge of -8.0 µC and the other has a charge of +4.0 µC.) Magnitude.
Assume a typical hummingbird has a lifespan of 4.00 years and an average heart rate of 1300 beats per minute. Compute the number of times a hummingbird's heart beats in its life, and express it in scientific notation. Make use of 365.24 days per y..
a metal plate of mass (m=20kg) slides down a slope of height (h=10 meters) and angle (theta=30Â °). what is the magnitude of the work done by friction
The electromagnetic wave used in a microwave oven have a wavelength of about 12.222 cm. What is the frequency of the radiation
Find the equivalent resistance of two resistors connected in parallel if one is 0.5 ohm and the other 0.33 ohm, what current will flow through the 10-ohm resistor
A circular armature coil is used in a motor with a uniform magnetic field of 2.65 T, If this motor is operating on 120 VRMS now with a load (e.g running a fan) and at the angular frequency ?A, how much current is flowing throught the motor
A nonconducting sphere contains positive charge distributed uniformly throughout its volume. Which statements about the potential due to this sphere are true?
A 64 kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal, What is the magnitude of the kinetic frictional force
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