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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?
An RLC series circuit has L = 0.324 H and C = 6.93 ?F . The source has a peak voltage of 442 V. What is the peak voltage across the inductor at resonant frequency
The total electric field consists of the vector sum of two parts. One part has a magnitude of E1 = 1300 N/C, Find the magnitude and direction of the total field
A 120 V potential difference is applied to a space heater whose resistance is 19 ? when hot. At what rate is electrical energy transferred to heat
A hockey puck has a mass of 0.116 kg and is at rest. A hockey player makes a shot, exerting a constant force of 27.5 N on the puck for 0.16 s. With what speed does it head toward the goal
An engine absorbs 3,450 J of heat energy each cycle and expels 1,240 J. how much work does it do in one cycle
A spaceship travels at a speed of 0.90c to a star that is 9.0 ly away. what is the distance travelled during the trip
A rocket has a total mass of 1.12 105 kg and a burnout mass of 1.09 104 kg, including engines, shell and payload. Estimate the speed at burnout if gravity isn't neglected
The electron beam inside a television picture tube is 0.300mm in diameter and carries a current of 50.0 ?A. What is the current density in the electron beam
A hydraulic lift has pistons with areas 0.60m^2 and 5.30m^2 , and they're at the same height. how much mass can the larger piston support
Two weights are connected by a very light flexible cord that passes over a 30 frictionless pulley of radius 0.100. The pulley is a solid uniform disk and is supported by a hook connected to the ceiling. One weight is 75N and the other is 125 N.
The speed of an arrow fired from a compound bow is about 29 m/s. An archer sits astride his horse and launches an arrow into the air elevating the bow at an angle of 35 degrees above the horizontal, What is the arrow range
A 12.0 V dc battery having no appreciable internal resistance, a 150.5 ohm resistor, an 11.2 mH inductor, and an open switch are all connected in series. what is the maximum energy stored in the inductor
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