Which of these is considered true about the mass of the neutrino?
a. It is the same as the mass of an electron or positron.
b. It is the same as the mass of a nucleon.
c. It is the same as the mass of an alpha particle.
d. It is zero.
e. It is slightly more than zero, but less than an electron.
e
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A 50-kg child riding a Ferris wheel (radius = 10 m) travels in a vertical circle. The wheel completes one revolution every 10 s. What is the magnitude of the force on the child by the seat at the highest point on the circular path?
A. 0.29 kN B. 0.49 kN C. 0.69 kN D. 0.20 kN E. 0.40 kN
A__________is a quantum of electromagnetic energy that carries an amount of energy that depends inversely on its wavelength
A) wave B) photon C) grating D) fringe
To double the total energy of a mass oscillating at the end of a spring with amplitude A, we need to
A.
.B.
.C.
D.
E.
.An object’s x-position is shown in the boxed graph of the following set of graphs. Which of the other graphs in the set most correctly describes its x-velocity?
A. A
B. B
C. C
D. D
E. E