Neutron stars are expected to spin rapidly because

a. they conserved angular momentum when they collapsed.
b. they have high orbital velocities.
c. they have high densities.
d. they have high temperatures.
e. the energy from the supernova explosion that formed them made them spin faster.


a

Physics & Space Science

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A cannon of mass 1500 kg fires a 10-kg shell with a velocity of 200 m/s at an angle of 30° above the horizontal. Find the recoil velocity of the cannon across the level ground

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A series RLC circuit has a resistance of 500 and inductance of 20.0 mH, and a capacitance of 2.00 F The power source provides a voltage of v = (170 sin(377t))V. What is the impedance of this circuit?

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B. 1.33 k
C. 1.25 k
D. 1.41 k
E. 2.15 k

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