Author Question: In beta decay, the emitted particle is a) an electron b) a photon of electromagnetic energy. ... (Read 113 times)

ishan · **on:** Jul 28, 2018

In beta decay, the emitted particle is
a) an electron
b) a photon of electromagnetic energy.
c) a hydrogen nucleus.
d) the nucleus of a helium atom.
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Question 2

A 6.0-kg object moving 5.0 m/s collides with and sticks to a 2.0-kg object. After the collision the composite object is moving 2.0 m/s in a direction opposite to the initial direction of motion of the 6.0-kg object. Determine the speed of the 2.0-kg object before the collision.
a. 15 m/s
b. 7.0 m/s
c. 8.0 m/s
d. 23 m/s
e. 11 m/s