A Type Ia supernova results in the formation of a neutron star.
Answer the following statement true (T) or false (F)
False
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An Atwood machine consists of an object of mass of 3.5 kg connected by a light string to an object of mass of 6.0 kg over a frictionless pulley with a moment of inertia of 0.0352 kg ? m2 and a radius of 12.5 cm
If the system is released from rest, what is the speed of the objects after they have moved through 1.25 m if the string does not slip on the pulley? A) 2.0 m/s B) 2.3 m/s C) 4.0 m/s D) 5.0 m/s E) 6.0 m/s
The mass number of an atom is equal to the number of what particles in the nucleus?
A) protons B) neutrons C) nucleons D) electrons E) positrons.
Four resistors having resistances of 20 ?, 40 ?, 60 ?, and 80 ? are connected in series across an ideal dc voltage source. If the current through this circuit is 0.50 A, what is the voltage of the voltage source?
A) 20 V B) 40 V C) 60 V D) 80 V E) 100 V
An ambulance is generating a siren sound at a frequency of 2,400 Hz. The velocity of sound is 345.0 m/s. If the observer is traveling at a velocity of 24.00 m/s away from the stationary ambulance, then what is the frequency of the siren perceived by the observer?
A. 2,375 Hz B. 2,366 Hz C. 2,305 Hz D. 2,275 Hz E. 2,233 Hz