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Neutron stars are extremely dense objects formed from the remnants of supernova explosions. Many rotate very rapidly. Assume the mass of a certain spherical neutron star is twice the mass of the Sun and its radius is 6 kilometer. Find the greatest possible angular speed it can have therefore that the matter at the surface of the star on its equator is just held in orbit by the gravitational force.
When a potential difference of 168V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of34.0nC/cm2. What is the spacing between the plates?
Several identical capacitors are connected along the edges of a square grid, so that along each edge there is exactly one capacitor. evaluate the net charge deposited from the battery
when a 50-gram piece of aluminum at 100 degrees celsius is placed in water it loses 735 calories of heat while cooling
an aluminum-alloy rod has a length of 10.008 cm at 16.400degc and a length of 10.020 cm at the boiling point of water.a
a 35 horizontal metal bar 14 long is free to slide up and down between two tall vertical metal rods that are 14 apart.
To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. What was the raven's speed right after the collision
A car moving at 78mi/hr approaches a yield sign 70m ahead. The driver slows the car with a constant acceleration of -4.5m/s2 by hitting the brakes. How long does it take the car to reach the yield sign
A meterstick moving at 0.892c relative to the Earth's surface approaches an observer at rest with respect to the Earth's surface. What is the meterstick's length as measured by the observer
The front 1.20 meter of a 1300 kilogram car is designed as a "crumple zone" that collapses to absorb the shock of a collision. Find what is the magnitude of the average force on the car
Find equation for the ground state energy for a particle in a spherically symmetric potential well,V(r) = -ad(r-a), and show that the bound state appears only when a is greater than some critical value.
Can you please help me? In reaching her destination a backpacker walks with an average velocity of 1.37m/s due west. how far did she walk
An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the..
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