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A short bar magnet of magnetic moment 5.25 × 10-2 J T-1 is placed with its axis perpendicular to the earth's field direction. At what distance from the centre of the magnet, the resultant field is inclined at 45º with earth's field on
(a) its normal bisector and (b) its axis. Magnitude of the earth's field at the place is given to be 0.42 G. Ignore the length of the magnet in comparison to the distances involved.
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. In a particular region, electrons move to the right at 7130 m/s, what is the magnitude of the average current in this region
A positively charged particle of mass 7.60 10-8 kg is traveling due east with a speed of 40 m/s and enters a 0.39-T uniform magnetic field. compute the magnitude of the magnetic force acting on the particle
in an effort to pump up you decide to hit the gym and lift weights everyday of the week. your favorite lift which you
A racetrack is to have a banked curve with radius 225 m. What should be the angle of the bank if the normal force alone is to allow safe travel around the curve at 56.0 m/s
an RLC series circuit consists of a 24 V (rms) 0.50 Hz AC power supply, a 25 ohm resister, a 10 H inductor, and a 0.050 F capacitor, what is the rms current through the inductor
An aging coyote cannot run fast enough to catch a roadrunner. He purchases on eBay a set of jet-powered roller skates, Determine the minimum speed the roadrunner must have to reach the cliff before the coyote
Blake passes a parked police car at a constant speed of 29 m/s. At that instant the police car starts from rest with a uniform acceleration of 2.15 m/s2. How far in distance does Blake get before being overtaken by the police car?
A car is traveling at 56.0 km/h on a flat highway. If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop
An electron is accelerated from rest through through a potential difference of 35,000 V. What is the electron's kinetic energy in Joules
A man throws a rock from the top of a cliff that is 80.0 m above ground level with an initial speed of 39.0 m/s at an angle of 39.0° above the horizontal. Determine the time it takes for the rock to hit the ground below the cliff. Determine the hor..
In the system shown in the figure, suppose the block has a mass of 3.3 , the spring has a force constant of 450 , and the coefficient of kinetic friction between the block and the floor is 0.19. Find the work done on the block by the spring
A track athlete running at fast pace had an instantaneous resultant force of 2800 N acting through the heel during heel strike, what were the horizontal and vertical forces acting on the heel
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