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Question1
As thermonuclear fusion proceeds in its core, the Sun loses mass at a rate of 3.64 109 kg/s. for the duration of the 5,000-yr period of recorded history, by how much has length of the year changed due to the loss of mass from the Sun? Assume the Earth's orbit is circular. No external torque acts on the Earth–Sun system, so angular momentum of Earth is constant.
Question2
One bright summer day a swimmer is floating with her head just above surface of a large lake where the water has index of refraction n = 1.38. Nearby she sees a tall wooden post emerging from the water. As she looks into the water at just the right angle she can see bottom of the post, that is embedded in lake bottom, a distance h = 5.60 meters below the water's surface. As she floats away from the post, finally she can no longer see the bottom of it. At what distance from post does this occur?
Find tension in the back muscle and the compressional force
Introductory Mechanics: Calculate the smallest coefficient of static friction
What is the magnitude of the current in the wire as a function of time?
A resistor is in the shape of a cube, with each side of resistance R . Find the equivalent resistance between any two of its adjacent corners.
Illustrate the cause of the components accelerating from rest down the conveyor.
How rapidly atom are assembled in this protein synthesis
What travel time is required for the landing
A dockworker applies a constant horizontal force of 84.0\({\rm N}\) to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 12.5\({\rm m}\) in a time 4.80\({\rm s}\)
The incident electron loses energy The incident electron emits an x-ray.
Question: Field and force with three charges? What is the electric field at the location of Q1, due to Q 2 ?
Decide the speed with the rock is thrown
Charge is distributed with constant volume density D throughout the rectangular box with length a, width b and height c.
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