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Consider a neutron star whose mass is twice the mass of the Sun and whose radius is 14.1 km. If it rotates with a period of 1.89 s, what is the speed of a point on the Equator of this star? What is the value of g at the surface of this star? Compare the weight of a 1.10 kg mass on the Earth with its weight on the neutron star. How many times bigger is this mass on the neutron star than on Earth? If a satellite is to circle 14.1 km above the surface of such a neutron star, how many revolutions per minute will it make?
What is the radius of the geostationary orbit for this neutron star?
what is the maximum speed the ball can have. imagine there are no other forces acting on the particle.
The 80-lb boy and 60-lb girl walk towards each other with a constant speed on the 300-lb cart. find the distance the cart has traveled at the instant the boy and girl meet
A perfectly insulated system has work done by it at a rate of 13 W. At what rate is the internal energy of the system changing?
q1. a plate carries a charge of -3.9 microc while a rod carries a charge of 2.2 microc. how many electrons should be
A heat pump extracts 7.0*10^6 J heat per hour from a well at 280K and delivers its output heat into a house at 320K. what minimum work must be supplied to the heat pump per hour
A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 80.6m/s at ground level. Its engines then fire and it accelerates upward at 3.80 m/s2 until it reaches an altitude of 930m. At that point its engines fai..
a cylindrical tube oriented vertically on earths surface closed at the bottom and open at the top height 100 m cross
Phil Mickelson launches a gold ball from the tee with a speed of 45.0 m/s at 35 degrees above the horizontal. calculate the horizontal distance to the green
What is the magnitude of the force that maintains circular motion acting on puck.
A building has two open doors facing the bay. The walls of the building absorb sound well, so multiple reflections can be ignored. Two people are standing a distance L = 150 m from the wall with the open doors, as pictured.
If an electric field strength greater than 3.88E+6 N/C causes the air to break down and conduct charge (lightning), what is the maximum charge the cloud can hold
a water molecule consists of an oxygen atom with two hydrogen atoms bound to it . the angle between the two bonds is
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