The neutron is radioactive and can beta decay to form a proton. This can occur primarily because
a. the proton has less mass than a neutron.
b. there are several hydrogen isotopes.
c. of the binding energy of hydrogen.
d. the neutron is neutral.
a
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Indicate whether the statement is true or false
If the acceleration vector of an object is directed anti-parallel to the velocity vector,
A) the object is turning. B) the object is speeding up. C) the object is slowing down. D) the object is not moving. E) this situation would not be physically possible.
A 4.2-kg object, initially at rest, "explodes" into three objects of equal mass. Two of these are determined to have velocities of equal magnitudes (5.0 m/s) with directions that differ by 90°. How much kinetic energy was released in the explosion?
a. 70 J b. 53 J c. 60 J d. 64 J e. 35 J
Caves and caverns are formed in carbonate rock by
A) abrasive action of swift flowing groundwater. B) reaction of carbonic acid released into the groundwater. C) stalactites and stalagmites. D) all of these