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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 happens to the resistance of copper wire after dunking it in liquid nitrogen? and what happens to the resistance of a carbon resistor when you dunk it in liquid nitrogen.
A surface completely surrounds a 3.5 × 10-6 C charge. Find the electric flux through this surface when the surface is (a) a sphere with a radius of 0.59 m, (b) a sphere with a radius of 0.16 m, and (c) a cube with edges that are 0.27 m long.
As a positron moves through a region of space, its speed increases from 2.80 X10^6 m/s to 8.00 X10^6 m/s. The electric force is the only force acting on the positron. Across what potential difference did the positron travel?
A compact car has a mass of 1170kg. What will be the car's oscillation frequency while carrying four 84.0kg passengers
Illustrate what is the maximum load that can be hung from a copper wire of diameter of 0.47 mm before it breaks?
A person with a near-point distance of 29 cm is able to get a usable magnification of 12 with a particular magnifying glass. What is the friend's near-point distance
A ball with radius r1 and mass m1 is attached by a rod of length L to a second ball with radius r2 and mass m2. Where is the system's center of gravity
a student drops a ball from a window 3.5m above the sidewalk. how fast is it moving when it hits the sidewalk
q1. a cd has a playing time of 53.1 minutes. while the music starts the cd is rotating at an angular speed of 498
There are two optical telescopes operating at the exact same frequency. The first telescope is a 10m telescope that is planned to be located at the L2 Lagrangain point 1.5 million kilometers past the orbit of the Earth. Which telescope will have ..
A converging lens(f1=4 cm) is located 8 cm to the left of a diverging lens (f2= -2 cm). Find the final image formed by the 2 lens system
A certain fluid has a density of 1080 kg/m3 and is observed to rise to a height of 1.8 cm in a 1.0-mm-diameter tube. Calculate the surface tension of the fluid
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