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A father racing his son has half the kinetic energy of the son, who has one-third the mass of the father. The father speeds up by 3.0 m/s and then has the same kinetic energy as the son.
(a) What is the original speed of the father?
m/s
(b) What is the original speed of the son?
A square plate of copper with 47.0 cm sides has no net charge and is placed in a region of uniform electric field of 79.0 kN/C directed perpendicularly to the plate. (a) Find the charge density of each face of the plate. (b) Find the total charge ..
two point charges q and 2q lie on the x-axis . which regions on the x-axis include a point where the electric field due to the two point charges is zero?
A merry-go-round (carousel) with a moment of inertia of 594 kg·m2, is initially rotating horizontally at 2 rad/s about a frictionless axis through its center.
Illustrate the security threats that An industry will face when it implements a wireless network. Suppose that the industry occupies the six middle floors
How much work is done on the toboggan by the tension force? Explain how much work is done if the same tension is directed parallel to the snow?
An Indy car with a speed of 125km/h goes around a level, circular track with a radius of 1.3km. What is the centripetal acceleration of the car.
A proton is at the origin and an electon is at the point x = 0.41 nm, y = 0.36 nm. Find the electric FIELD at the proton,
Laser light with a wavelength lambda = 660nm illuminates a pair of slits at normal incidence.
A spectral line from the left side of Saturn's rings, as you see them, is at a wavelength slightly shorter than the same spectral line measured from the right side of Saturn's rings. Which way (direction) is Saturn rotating and why?
Two small nonconducting spheres have a total charge of 89.0?C , Q1
If the surface of the water is calm and the pool is h = 1.52 m deep, find out the minimum diameter of the raft that would prevent the diamond from being seen.
A horizontal force a of magnitude 22 N is applied to a 3.25 kg psychology book, as book slides a distance d = 0.500 m up a frictionless ramp.
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