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A wire carries a current of 6.0 A in a direction that makes an angle of 36.0° with the direction of a magnetic field of strength 0.300 T. Compute the magnetic force on a 7.00-m length of the wire.
If a soldier shoots an enemy with the intent of killing him, he wants the bullet to deliver maximum energy. On the other hand, if he wants to basically knock someone down (say for dispersing a riot) he wants the bullet to deliver maximum force.
the pendulum in a grandfather clock has a period of 1.00 sec? if the clocks driving spring is allowed to run down
A loop of wire of area 2 m2 is placed with its plane perpendicular to a magnetic field of 3 T. what is the induced emf
The author's cat enjoys chasing chipmunks in the front yard.
A spring is oscillating with a frequency of 1.7Hz. 3.9 seconds after the spring is released it is -20cm from equilibrium. Find the amplitude of the spring
A cannonball is launched from ground level and lands at ground level. If it is launched with a speed of 76.2 m/s and stays in the air for 6.4 s, What angle was the cannon shot at
A parallel-plate capacitor is made of two flat metal plates pressed against a thin slab of dielectric material. What is the dielectric constant of the material that was initially used to fill the gap between the plates
One end of a 0.23-m copper rod by a cross-sectional are a of 1.19*10-4 m2 is driven into the enter of a sphere of ice at 0° C (radius = 0.16 m). The portion of the rod that is embedded in the ice is also at 0° C. The rod is horizontal and its other e..
A 100 gram aluminum calorimeter contains 250 gram of water. The two substances are in thermal equilibrium at 10°C. Find what is the specific heat of the unknown second sample
A 3.00 kg block starts from rest at the top of a 30° incline and slides a distance of 1.80 m down the incline in 1.30 s. Find the magnitude of the acceleration of the block
an electric power line carries a current of 1400 a in a location where the earths magnetic field is 6.0 ? 10-5 t. the
A wooden block (mass 0.1kg) is set on a rotating disk. What is the minimum coefficient of friction to ensure the block does not slide outward
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