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Two long parallel wires are separated by 3.37 cm and carry currents 1.25 A and 3.43 A. Find the magnitude of the magnetic force that acts on a 3.53-m length of either wire.
A diver has a vertical velocity of -12 m/s when she is 1.8 m above the water. What was her peak height
A transformer has 100 turns in its primary windings and 500 turns in its secondary winding. calculate the secondary voltage and current
A proton with a speed of 2.5 × 106 m/s is shot into a region between two plates that are separated by a distance of 0.16 m. What must be the magnitude of the magnetic field
A 2.30 kg object attached to a spring moves without friction and is driven by an external force given by F = (3.00 N) sin(2pt). If the force constant of the spring is 25.0 N/m, determine the period
Light strikes a metal surface, causing photoelectric emission. The stopping potential for the ejected electrons is 3.4 V, What is the wavelength of the incident light
Calculate the magnitude of the current density in the wire. Find out the work done by the hockey player on the puck. What is the change in kinetic energy of the puck.
Suppose a duck lives in a universe in which h = 2? J · s. The duck has a mass of 2.55 kg and is initially known to be within a pond 1.65 m wide. determine the uncertainty in the duck's position after this time interval
A proton enters through a small hole in a metal plate with a speed of 8.00*10^5 m/s at an angle of 55.0°, How far will the proton travel, ?x, before it hits the metal plate
you need a transformer that will draw 34w of power from a 220 v rms power line stepping the voltage down to 12v rms.a.
A particle is moving with a certain speed. Its speed and momentum are being measured with respect to Earth. What was the original speed of the particle
A uniform disk of mass .53kg and radius 11cm is constrained to rotate on an axis about its center. find the KE attained by the system
Two workers are trying to move a heavy crate. One pushes on the crate with a force , which has a magnitude of 485 newtons and is directed due west.
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