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An electron with kinetic energy 1.92 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 26.0 centimeter.
Calculate the speed of the electron.
Calculate the magnetic field.
Calculate the frequency of circling.
Calculate the period of the motion.
A hand-pumped water gun is held level at a height of 0.82 m above the ground and fired. Find the gauge pressure of the water gun's reservoir at the instant when the gun is fired
calculate the magnitude of the force if Q1 is 4 x 10^-9 coulombs and Q2 is 8 x 10^-12 coulombs and the distance between them is 3 x 10^-8 meters.
We have studied four different laws authored by Sir Isaac Newton. For each of the following, indicate which law is best for the task described. Calculating the force exerted on a satellite by the Earth
A flywheel is a solid disk that rotates regarding an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are being considered as a likely alternative..
A railroad car of mass 2.00 x 10^4 kg is traveling north 6.00 m/s and collides with a railroad car of mass 1.50 x 10^4 kg traveling south 4.00 m/s, Find the velocity of railroad cars if the lighter car is intially at rest
Two large metal plates of area 1.3 m2 face each other.They are 3.9 cm apart and have equal but opposite charges on the irinner surfaces. If the magnitude E of the electric field between the plates is 60 N/C, what is the magnitude of the charge in cou..
A jet flying faster than the speed of sound creates a shock cone of high pressure air. What will be the angle of the shock cone
What multiple of the time constant τ gives the time taken by an initially uncharged capacitor in an RC seriescircuit to be charged to 97.6% of its final charge?
A block of weight 3.9N is launched up a 30 degrees inclined plane 2.10m long by a spring with k = 2.15kN/m and maximum compression 0.10m, find How much kinetic energy does it have there
A curve of radius 35 m is banked for a design speed of 64 km/h. If the coefficient of static friction is 0.34 (wet pavement), at what range of speeds can a car safely make curve.
When a certain spring is stretched by an amount x, it produces a restoring force of F(x) = ax=bx^2, where a and b are constants. How much work is done through an external force in stretching the spring by an amount D from its equilibrium length.
During a storm, a tree limb breaks off and comes to rest across a barbed wire fence at a point that is not in the middle between two fence posts. The limb exerts a downward force of 151 N on the wire. The left section of the wire makes an angle of..
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