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Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of the orbit is 3.02 × 10-11 m. Determine the magnitude of the electron's centripetal acceleration.
A 42-cm-long solenoid, 1.8?cm in diameter, is to produce a 0.030-T magnetic field at its center. If the maximum current is 4.6 A
A ball is thrown at an angle of 52.5 degree above the horizontal at a speed of 8.2 m/s. What is the vertical component of the ball's velocity
A 1/2 kg ball is dropped from rest at a point 5m above the floor and bounces back with a speed of 6m/s. And is there a way to determine the impulse the ball applies to the floor
A container is filled to a depth of 19.0 cm with water. On top of the water floats a 32.0-cm-thick layer of oil with specific gravity0.600
A 0.07-kg lead bullet traveling 296 m/s strikes an armor plate and comes to a stop. If all of the bullet's energy is converted to heat that it alone absorbs
Two thin lenses with a focal length of magnitude 12.0cm, the first is diverging and the second is converging, are located 9.00cm apart. Can you help me determine if the image is real or virtual
A uniform disk of mass 4m is rotating an a plane parallel to the ground with angular frequency of 12 rad/sec. What fraction of kinetic energy was lost
A person who weighs 715 N is riding a 98-N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. find the area of contact between each tire and the ground
Relationships between wavelength, frequency and speed.
What is the Lens Equation? What do o, i and f stand for in the equation and what are the five parts of the Optical Bench used in this experiment? Briefly describe what each part does.
A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (1.4 m, 5.7 m) while a constant force acts on it. How much work is done by the force on the coin during the displacement
A positive point charge Q1 = 2.8×10?5C is fixed at the origin of coordinates, and a negative charge Q2 = ?5.5×10?6C is fixed to the xaxis at x=+1.5m. Find the location of the place(s) along the x axis
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