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Q. A 55 cm diameter wheel accelerates uniformly from 250 rpm to 365 rpm in 7 s. how far will a point on the edge of the wheel have traveled in this time?
Q. A total of 34 bright and 34 dark Newton's rings (not counting the dark spot at the center) are observed when 550 -nm light falls normally on a planoconvex lens resting on a flat glass surface. How much thicker is the center than the edges?
Study of the fragment
What is speed of the resulting ball of clay
General relativity says that the total orbital energy of the binary system consisting of two neutron stars will decrease over time through the emission of gravitational waves. If this happens slowly sufficient that the orbit stays circular, response ..
Two large, parallel, conducting plates are 21cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 4.1 x10-15 N acts on an electron placed anywhere between the two plates.
An airplane is flying with a velocity of 97.0 at an angle of 25.0 above the horizontal. while the plane is a distance 103 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog ..
Find tension in the back muscle and the compressional force
A child's toy consists of a piece of plastic attached to a spring. The spring is compressed against the floor a distance of 2.0 cm and released. If the spring constant is 85 N/m, what is the magnitude of spring force acting on the toy at the moment i..
An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461). If an angle of incidence into water from the carbon tetrachloride is 20, what is the angle of refraction into the air.
A second fragment, who's mass is 3.4 kg, moves away from the point of explosion with a speed of 418 m/s along the negative x axis. What is the speed of the third fragment? Ignore effects due to gravity.
Sketch a principle ray diagram showing the formation of the image. compute the position, size, orientation (erect or inverted), and nature (real or virtual) of the image.
What is the kinetic energy
A chair of weight 74.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 47.0 N directed at an angle of 41.0^circ below the horizontal and the chair slides along floor.
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