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1.A duck flying due east passes over Atlanta,where the magnetic field of the Earth is 5.0 × 10^-5 T directed north. The duck has apositive charge of 4.0 × 10^-8 C. If the magnetic force acting on the duck is 3.30×10^-11 N upward, what is the magnitude of the duck's velocity?
2.A proton moves eastward in the plane of Earth's magnetic equator so that its distance from the ground remains constant. What is the speed of the proton if Earth s magnetic field points north and has a magnitude of 5.0×10^-5 T
3.A wire carries a 10.0 A current at an angle 90.0° from the direction of a magnetic field. If the magnitude of the magnetic force on a 5.00 m length of the wire is 15.0N, what is the strength of the magnetic field?
4.A thin 1.00m long copper rod in a uniform magnetic field has a mass of 50.0g. When the rod carries a current of 0.245A, it floats in the magnetic field. What is the field strength of the magnetic field?
A solenoid of radius r = 1.25 cm and length l = 33.0 cm has 320 turns and carries 12.0 A. Calculate the flux through the surface of a disk-shaped area of radius R = 5.00 cm that is positioned perpendicular to and centered on the axis of the solenoi..
A 0.58-kg mass is hanging from a spring with spring constant 20 N/m. Then the mass is displaced from the equilibrium by 2.9 cm and let go. estimate the resulting angular frequency of the oscillation
Water at a gauge pressure of P = 4.8 atm at street level flows into an office building at a speed of 0.98m/sthrough a pipe 5.6 cm in diameter. Calculate the gauge pressure in the pipe on the top floor
The blue ball moves at an angle of -35° and a velocity of 2.1 meters/second. What is the final y-momentum of the system?
An aluminum cylinder with radius 2.3cm and length 19cm is heated to 430 degrees C. Find the net power this cylinder radiates into a room
An ideal solenoid is constructed with 500 turns of wire of 5.00 mm radius. The wire has a cross sectional area of 3.0 x 10-8 m2, determine The voltage induced in the solenoid
a spherical surface completely surrounds a collection of charges. find the electric flux through the surface if the
Calculate the speed of the second ship with respect to Earth if it is fired in the same direction the first spaceship is already moving
A high-speed photograph of a club hitting a golf ball. The club was in contact with a ball, initially at rest, for about 0.0028s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.8 102 ft/s, find out the average forc..
A runner of mass m = 37 kg and running at 2.8 m/s runs asshown and jumps on the rim of a playground merry-go-round which hasa moment of inertia of 383 kg·m2, what is its final angular velocity
questionhow to find the length? a shell and tube heat exchanger is to be designed to heat 2.5 kgs of water from 15 to
a baseball is hit from 1m above the ground and attains a maximum height of 21m and horizontal distance of 100m. a
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