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A horizontal wire of length 0.43 m, carrying a current of 6.9 A, is placed in a uniform external magnetic field. When the wire is horizontal, it experiences no magnetic force. When the wire is tilted upward at an angle of 22°, it experiences a magnetic force of 5.8 × 10-3 N. Determine the magnitude of the external magnetic field.
A 42.00kg pole vaulter running at 13 m/s vaults over the bar. Her speed when she is above the bar is 1.3 m/s. Avoid air resistance, in addition to any energy absorbed by the pole, and determine her altitude as she crosses the bar.
Consider an atom of sulfur (chemical symbol S), How many electrons does a neutral atom of sulfur have
Draw the displacement for the father and son.
A gymnast of mass 60kg hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 for the acceleration of gravity.
A solar collector is placed in direct sunlight where it absorbs energy at the rate of 880 J/s for each square meter of its surface. What equilibrium temperature does the collector reach
The coefficient of kinetic friction between a suitcase and the floor is 0.272. how far can it be pushed across the level floor with 630J of work
If the company is presently selling 45,000 units, but plans to spend an additional $108,000 on an advertising program, explain how many additional units must the company sell to earn the same net income it is now making?
A circular coil of wire with 40 turns and a radius of 33.3 cm is laying flat on a horizontal, find the magnitude of the magnetic flux through the coil
A circular loop carries a current I = 20A, and the magnetic energy density at the loop's center is equal to 6 mJ/m^3. What is the radius of the loop
What is the Hall effect, give a real life example, list its applications, When an electric light bulb is operated on a low frequency AC, they noticeably flicker
Two 1.8 V. batteries are connected together in series to a bulb whose resistance is 50 ohms. How many electrons leave each battery per minute
Ignoring the mass of the spring, what is the mass of the fish?
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