Which of the following subatomic particles has the most mass?
a) the neutron
b) the positron
c) the proton
d) the electron
a
You might also like to view...
Which was a contribution to astronomy made by Copernicus?
A) The planets move around the Sun in elliptical orbits. B) His theory of gravity accounted for the variable speeds of the planets. C) He laid out the order and relative motion of the known solar system. D) He discovered the Sun was not at the center of the Milky Way. E) His telescope revealed the four moons of Jupiter, a model solar system.
In the formation of our Galaxy, the ________ formed first
A) planetary nebulae B) globular clusters C) spiral arms D) galactic center E) galactic disk
List the SI base units
What will be an ideal response?
A neutron with a mass of 1.67 × 10-27 kg traveling east with a kinetic energy of 2.00 × 10-21 J collides perfectly elastically with a helium nucleus with a mass 6.68 × 10-27 kg that is initially at rest
After the collision, the neutron has a kinetic energy 1.80 × 10-21 J. What angle was the neutron deflected during the collision? A) 142° B) 117° C) 38.0° D) 180° E) 32.8°