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A steel wire of length 1.90 meter with circular cross section must stretch no more than 0.300 centimeter when a tensile (stretching) force of 400 Newton is applied to each end of the wire.
a) Find what minimum diameter is required for the wire?
A loop of diameter d=12 cm, carrying a current I = 0.40 A is placed inside a magnetic field B=(02.0 T)i + (0.40 T)j. Calculate the potential energy of the loop
A circular coil of 57 loops and diameter 30.0cm is lying flat on a tabletop, and carries a clockwise current of 1.90A . A magnetic field of 0.370T , What is the torque on the coil
A sinusoidal wave travels in the positive x direction with amplitude of 15.0 cm, a wavelength of 40.0 cm and a frequency of 8 Hz. The vertical displacement at x= 0 when t= 0 is 15.0 cm. Discover the period, the angular frequency and the speed of the ..
A 601 kg car stopped at an intersection is rear-ended by a 1420 kg truck moving with a speed of 11.5 m/s. what is the final speed of both vehicles after the collision
A diver springs upward with an initial speed of 1.7 m/s from a 3.0-mboard. Find the velocity with which he strikes the water.
As observed from Earth, rocket Alpha moves with speed 0.802c and rocket Bravo travels with a speed of 0.692c. What is the speed of rocket Alpha as measured from rocket Bravo
Does it travel at the same speed the entire time?
A neutron star is composed of neutrons and has a density that is about the equal as that of a nucleus. Determine the radius of a neutron star whose mass is one-fourth of the mass of the sun
Challenges to Effective Management Processes
A hydrogen atom is in its second excited state (n = 3). Using the Bohr theory of the atom, compute the following. The total energy, The potential energy, The kinetic energy, The radius of the orbit
An aluminum block (c=0.22 kcal/kgoC) of mass 1 kg and temperature 964oC is dropped into 11 liters of water at 26 oC. What is the final temperature of the water and aluminum
A permanent magnet is hung from a string ( balanced ) and pointed in an East - West orientation and released. Describe its motion
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