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The electric potential in a region is V=-Vo(r/R) where Vo and R are constants and r is the radial distance from the origin. Find expressions for the magnitude and direction of the electric field in this region.
A laboratory ultracentrifuge is designed to produce a centripetal acceleration of 5.0 x 10^6 g at a distance of 4.00cm from the axis. What angular velocity in rev/min is necessary.
How strong is the electric field between the plates.
How many joules of kinetic energy does a 750-{rm kg} automobile travelling at the typical highway speed of 65 {rm{ mi/h}} have.
A bird sits on a high-voltage power line with its feet 4.6 cm apart. What is the potential difference between the bird's feet
a long horizontal wire carries a current of 48 amps. A second wire, made of 2.5 mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15 cm below. Determine the magnitude and direction of the current in the lower wi..
A solid sphere is released from rest on an incline. When it reaches the bottom, what fraction of its total kinetic energy is rotational
A certain speed boat weighs 5,880 N. It can accelerate from 0 to 40 m/s in 5 seconds. (Need to see the math). How large is the net force acting on the boat
An LC circuit is built with a 20 mH inductor and an 8.0 microF capacitor. After what time is the capacitor fully charged
An engine has a hot reservoir temperature of 900 K and a cold reservoir temperature of 608 K. What is the efficiency of the engine
A series RLC circuit has components with the following values: L = 22.0 mH, C = 86.0 nF, R = 25.0 ?, and ?Vmax = 100 V, with ?v = ?Vmax sin ?t. Find the resonant frequency of the circuit.
Assuming that all photons reaching the solar cell give their energy to a charge carrier, what is the minimum power of a flash of light of wavelength 540nm that can be detected
An object moves with constant acceleration 4.80 m/s2 and over a time interval reaches a final velocity of 12.6 m/s.
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