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How much work would it take to rotate a 10 cm diameter loop carrying 25 A of current with a normal vector oriented 30* from a 2.0 T magnetic field to where the normal vector was completely anti-parallel with the field? Please explain.
A 900 kg car is going 20 m/s along a level road. How large a constant retarding force is required to stop it in a distance of 30 m? Perform the calculations for a (a) smooth road and (b) road with coefficient of rolling friction of 0.03.
Two 3.5 kg bodies, A and B, collide. The velocities before the collision are A = (21 + 30) m/s and B = (-34 + 11) m/s. After the collision, ′A = (-4.5 + 16) m/s.
a student starting from rest slides down a water slide. on the way down a kinetic frictional force a nonconservative
A grating spectrometer is used to resolve third order peaks from two wavelengths of ?1 = 455.00 nm, What is the minimum number of slits this grating must have
A circular saw blade accelerates from rest to an angular speed of 3620 rpm in 6.3 revolutions. Find the torque exerted on the saw blade
A type of transmission line for electromagnetic waves consists of two parallel conducting plates (assumed infinite in width) separated by a distance a. Each plate carries the same uniform surface current density of 16.0 A/m, but the currents run i..
A bullet of mass 12 grams is fired into a large block of mass 1.5 kg suspended from light vertical wires. Find the velocity of the bullet just before collision
An object has a kinetic energy of 277 J and a momentum of magnitude 26.9 kg·m/s. Find the speed and the mass of the object
You're burning calories by weight lifting. You lift a 65kg barbell and 1.8m and repeat 15 times. How much energy in Cal do you expend
What must be the thickness of the liquid layer if normally incident light with? = 504 nm in air is to be strongly reflected
8.95 H inductor with negligible resistance is placed in series with a 15.3 V battery, a 3.00 ? resistor, Calculate the current as time approaches infinity
A planet's moon travels in an approximately circular orbit of radius 5.4 107 m with a period of 7 h 21 min. Calculate the mass of the planet from this information
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