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Consider a pulsar, a collapsed star of extremely high density, with a mass M equal to that of the Sun (1.98 × 1030 kg), a radius R of only 17.7 km, and a rotational period T of 0.0642 s. By what percentage does the free-fall acceleration g differ from the gravitational acceleration ag at the equator of this spherical star?
A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.1 kg and the sign has a mass of ms = 16.8 kg. What is the net force the hinge exerts on the beam
Two large, parallel, conducting plates are 26cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 2.8 x10-15 N acts on an electron placed anywhere between two plates.
A 0.0017T magnetic field and a 5.7 x 10^3 N/C electric field both points in the same directions. Determine the magnitude and directions of the net force on the charge
I am working on a project where we need to find an optimal transfer for a spacecraft from LEO to the L4 LaGrange point in the Earth-Moon system. In order to calculate the delta V for the arrival at the LaGrange point, we need to know the "veloci..
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m3 , length 79.9cm, Calculate the weight of the rod, w
A uniform linear charge density of 4.0 nC/m is distributed along the entire x axis. Consider a spherical (radius = 5.0 cm) surface centered on the origin. Determine the electric flux through this surface
Wile E. Coyote and the Roadrunner are fictional cartoon characters. The premise of the cartoon is that Wile E. Coyote unsucessfully tries to catch the very fast, What is the velocity of the combined system of two wagons
For tests using a ballistocardiograph, a patient lies on a horizontal platform that is supported on jets of air. determine the recoil velocity
a parallel plate capacitor with plates of area 500 cm2 is charged to a potential difference v and is then disconnected
At time zero, an object is thrown upward at a speed of 14.0 m/s from the top of a 91.0 m tall building. What time is it when the object hits the ground
A soccer ball whose radius is 11 cm rolls a distance of 10 min 3.50 s. It rolls without slipping. What is the angular speed of the ball
Find the focal length of a glass lens that has an index of refraction equal to 1.66, a concave surface that has a radius of curvature of magnitude 108 cm
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