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Q. Suppose a planet had a density that varied with radius according to the equation, ρ =A/r, where A is some constant. Determine a formula that gives the central pressure for this type of planet.
Q. A constant force of 100 n is applied to a mass of 40.0 kg. The force causes a displacement of 20.0 m to this mass along the + x axis. What is the work done by the component of the force along the + x axis?
The wavelength of an ocean wave
A coin with a diameter of 3.00 cm rolls up a 30.0 degree inclined plane. The coin starts with the initial angular speed of 60.0 rad/s and rolls in a straight line without slipping. How far does it roll up the inclined plane.
Computing the probability of reflection and transmission of a particle at walls of a barrier.
What was the average acceleration throughout the trip
What was the speed of the car before impact
A 378 N, uniform, 1.56 m bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 502.0 N without breaking, and cable B can support up to 397.0N. You want to place a small weight on this bar. What is ..
What is the electric field strength at midpoint between two disks.What is the electric field strength a point on axis 5.0 cm from one disk between them.
A collimated beam of microwaves impinges on a metal screen that contains a long horizontal slit that is 20cm wide. A detector moving parallel to the screen in the far-field region locates first minimum of irradiance at an angle of 36.8° above the ..
A kayaker needs to paddle north across an 85 m wide harbor. The tide is going out, creating a tidal current that flows to the east at 1.7 m/s. The kayaker can paddle with the speed of 3.0 m/s.
What is the shortest height a plane mirror must be so that a person who is 1.6 meters tall is able to see his or her whole body? plan a ray diagram to support your answer.
Suppose an initial speed of 21.4 m/s, at an angle of 61.10° with respect to the positive x axis. Find the velocity at time t0; enter x component, after that the y component.
What pressure is acting on the walls of drum
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