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Pulsars are neutron stars that emit X rays and other radiation insuch a way that we on Earth receive pulses of radiation from thepulsars at regular intervals equal to the period that they rotate.Some of these pulsars rotate with periods as short as 1 ms! TheCrab Pulsar, located inside the Crab Nebula in the constellationOrion, has a period currently of length 33.085 ms. It is estimatedto have an equatorial radius of 15 km, an average radius for aneutron star.
(a) What is the value of the centripetalacceleration of an object on the surface at the equator of thepulsar?(b) Many pulsars are observed to have periodsthat lengthen slightly with time, a phenomenon called "spin down."The rate of slowing of the Crab Pulsar is 3.50*10-13 s per second, which implies that if thisrate remains constant, the Crab Pulsar will stop spinning in9.50*1010 s (about 3000 years from today). What is thetangential acceleration of an object on the equator of this neutronstar?
A thin disk of uniform density, mass 5kg and radius :25m, rests on a frictionless table. Find the linear and angular speed of the disk clay system after the impact
A father racing his son has 1/2 the kinetic energy of the son, who has 1/3 the mass of the father, What are the original speeds of (b) the son
What is the radius of a helium-filled balloon that would carry a load of 3000 N in addition to the weight of the helium when density of the air is 1.29 kg/m^3? Density of the helium is 0.179 kg/m^3.
A 1.5kg- block of ice is initially at a temperature of -7.0C a)If 2.6×10^5J of heat are added to the ice, Find the amount of ice, if any, that remains
At a certain location, the Earth's magnetic field has a magnitude of 5.8×10^-5, Find the magnitude of the magnetic flux through the top of a desk at this location that measures 140cm by 77cm
The vibrational frequency of CO molecule is 6.42 x 1013 Hz. Estimate the amplitude of molecular vibrations.
A skier moving at 4.60m/s encounters a long, rough horizontal patch of snow having coefficient of kinetic friction 0.220 with her skis. How far does she travel on this patch before stopping?
A 1.7 kg rolling hoop with a radius of 9 cm rolls without slipping. If the angular speed of the hoop is 2.46 rad/s , compute rotational kinetic energy of the rolling hoop
q1. a sled is pushed by 12 monkeys with a constant force until it reaches a velocity of 18.9 ms. all 12 monkeys stop
To demonstrate conservation of angular momentum, you switch on the train's engine. The train moves counterclockwise, soon attaining a constant speed of 0.700 relative to the tracks.
A movie star catches a reporter shooting pictures of her at home. She claims the reporter was trespassing and to prove her point, How far away from the subject was the reporter standing
Electromagnetic waves (light) can form standing waves. In a certain standing wave pattern formed by microwaves, What is the microwave frequency
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