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A brass wire is to withstand a tensile force of 350N without breaking.
What minimum diameter (in mm) must the wire have?
A 5.0 V battery storing 72.0 kJ of energy supplies 1.5 A of current to a circuit. How much energy does the battery have left after powering the circuit for 1.0 h
A 0.75m diameter solid sphere may be rotated about an axis through its center by a torque of 11.5m*N which accelerates it uniformly from rest through a total of 180 revolutions in 16.0 s.What is the mass of the sphere.
A flight attendant pulls her 64 N flight bag a distance of 370 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 51° above the horizontal.
If a helium nucleus with a mass of 6.68 10-27 kg, a charge of +2e, how close will the helium atom come to the gold nucleus before it stops and turns around
What is the work done by the tension in the cable.assume the roller coaster (h1 = 34 m, h2 = 13 m, h3 = 30) passes point A with a speed of 3.10 m/s. If the average force of friction is equal to one third of its weight, with what speed will it reach..
Two vehicles are approaching an intersection. One is a 2300kg pickup traveling at 14.0m/s from east to west (the ?x- direction), What is the magnitude of the net momentum
The path of an electron, travelling at 3.7 × 104 meters/second, is making the right angle to a magnetic field. A single electron experiences a force of 2.2 × 10-15 Newton's while in the field. What is strength of the magnetic field .
A dog sitting 3.7m from a vertical mirror thinks its image is another dog. How far is the image from the dog
A flat circular coil with 102 turns, a radius of 3.92 10-2 m, Find the magnitude of the magnetic field at the center of the coil that is produced by the induced current
An empty parallel plate capacitor is charged with the charge Q= 5uC (One plate of the capacitor carries the carge +Q and the other carries the -Q). Find the capacitance of the capacitor
A potential difference of 90 mV exists between the inner and outer surfaces of a 7.5 nm thick cell membrane. What is the electric field inside the cell membrane and inside the actual cell. Explain
A 32000-kg railroad freight car collides with a stationary caboose car. What is the mass of the caboose
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