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A long solenoid (n=1200 turns per minute) radius = 2.0 cm has a current of 0.30 A in its winding. A long wire carrying a current of 20 A is parallel to and 1.0 cm to the right of the axis of the solenoid. In unit vector notation, what is the magnetic field at a point on the axis of the solenoid? Assume the axis of the soenoid is perpendicular to the page, and the wires and current wind counter clockwise into the page. Assume the current for the straight wire is out of the page?
A bowling ball of mass 1 kg hits a spring with velocity 1 m/s. The spring constant is also 1 (how convenient!). What is the maximum compression of the spring in centimeters
Find the resultant forces and moments at wrist, biceps muscle force, elbow and shoulder and joint reaction force using 2-D static analysis.
A photon with an initial wavelength of 1.380×10-11 m Compton scatters from an electron which is initially at rest. What is the energy of the outgoing photon
a spring has a constant k=8.75 N/m. if the spring is displaced 8.150 m from its equilibrium position, what is the force that the spring exerts
A sinusoidal wave traveling on a string has a period of 0.21s, a wavelength of 32cm, and an amplitude of 5.0cm. compute the speed of this wave
a cup of coffee is on a table in an airplane flying at a constant altitude and a constant velocity. the coefficient of
A bar of length 1.5 meters moves to the left at 4.6 m/s along a set of conducting rails. The rails and bar have a net resistance of 10 Ohms. Determine the induced electromotive force
In an experiment designed to measure the magnitude of a uniform magnetic field, electrons are accelerated from rest through a potential difference of 350 V, what is the angular speed of the electron
In one day, a 75 kg mountain climber ascends from the 1500-m level on a verical cliff to the top at 2400m. What is the change in her gravitational potential energy
The compressor of an air conditioner draws an electric current of 21.2 A when it starts up. If the start-up time is 1.75 s long, then how much electric charge passes through the circuit during this period?
A charge of170µC is at the center of a cube of edge40.0cm. No other charges are nearby. Find the total flux through each face of the cube
A blu-ray disc has mass of 20 g and is 12 cm in diameter. The fastest drives can spin the disc at 10000 RPM after uniformly accelerating it for 1 sec. Find the net torque on the disc
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