In alpha decay,
A) a proton turns into a neutron
B) a neutron turns into a proton
C) a proton turns into an electron
D) a helium nucleus is ejected
D
You might also like to view...
The electric field between two charged conducting plates is
A. Zero B. Strongest near the negative plate C. Strongest near the positive plate D. Uniform
Georges-Louis de Buffon was the first to propose that the Sun and planets formed when a large vortex contracted and condensed
a. True b. False Indicate whether the statement is true or false
Approximately, what basic composition are all stars born with?
A) half hydrogen, half helium, no more than 2 percent heavier elements B) three-quarters hydrogen, one-quarter helium, no more than 2 percent heavier elements C) 90 percent hydrogen, 10 percent helium, no more than 1 percent heavier elements D) one-quarter hydrogen, three-quarters helium, no more than 2 percent heavier elements E) 98 percent hydrogen, 2 percent helium
An object moving at a constant speed requires 6.0 s to go once around a circle with a diameter of 4.0 m. What is the magnitude of the instantaneous acceleration of the particle during this time?
a. 2.2 m/s2 b. 2.7 m/s2 c. 3.3 m/s2 d. 3.8 m/s2 e. 4.4 m/s2