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The Crab Pulsar, location inside the Crab Nebula in the constellation Orion, has a period currently of length 33.085 ms. Itis estimated to have an equatorial radius of 15 km. a). What is the value of centripetal acceleration of a an object on the surface atthe equator of the pulsar? b) Many pulsars are observed to have periods that lengthen slightly with time, a phenomenon called "spindown." The rate of slowing the crab pulasr is 2.5*10-13 which implies that if the rate of remainsconstant the pulasr will stop spinning in 9.5 *1010 seconds. What is the tangential acceleration of the object on the equator of this neutron star?
You are a professional frontier re-enactor who specializes in making lead shot. How much energy is required to cool a single droplet of molten lead all the way down to 0 C
A flat circular coil with 107 turns, a radius of 4.32 10-2 m, and a resistance of 0.472 ? is exposed to an external magnetic field that is directed perpendicular to the plane of the coil.
You are at the controls of a particle accelerator, sending a beam of 3.60×10^7 m/s protons (mass ) at a gas target of an unknown element. Find the mass of one nucleus of the unknown element
The angular velocuty of the elctron in the lowest Bohr orbit of the hydrogen atom is about 4*10^16 s^-1. Determine the Larmor frequency in a field of 2 T
A block of mass 16.7 kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 4.89 m/s2. a) What is the tension in the cable? b) What is the magnitude of the net force acting o..
The charging circuit for the flash system of a camera uses a 130 muF capacitor that is charged from a 250V power supply. What is the most resistance that can be in series with the capacitor if the capacitor is to charge to at least 86% of its final..
The number of protons in the known universe is about 10^80, and the radius of a proton is about 10^-15m. Estimate the volume of a sphere containing all of these protons if they were placed in contact with each other
An electron microscope uses electrons that are accelerated tospeeds of 30000m/s.The electrone than sent perpendicularly throughanother electric field produced between two plastec 1.00cm apartwith potential difference of 12,000volts
A light ray enters a glass slab at point A at an angle of 58.6° with respect to the surface normal, What minimum value for the index of refraction of the glass can be inferred from this
Two capacitors give an equivalent capacitance of 9.50 pF when connected in parallel and an equivalent capacitance of 1.80 pF, What is the capacitance of each capacitor
A single circular loop of radius 0.24m carries a current of 2.7A in a magnetic field of 0.96T .What is the maximum torque exerted on this loop?T=_____ N*m
A conical pendulum is formed by attaching a 50 g mass to a 2 m string. The mass swings around a horizontal circle of radius 1 m. What is the acceleration of the mass
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