What property of beta decay led to the proposal that the neutrino had to exist?
a. Beta decay changes the charge of nucleons.
b. Beta decay results in electrons with a single predictable kinetic energy.
c. Positron rather than electron emission is observed from some nuclei.
d. Beta decay can result in transmutation from one element to another.
e. Beta decay results in electrons with a range of kinetic energy levels.
e
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A student uses a plumb bob to verify that the doorjamb in a car is vertical. As the car pulls away from a stop, the student observes that the string now makes an angle ? with the doorjamb. Why does this happen?
What will be an ideal response?
A container having a volume of 1.0 m3 holds 5.0 moles of helium gas at 50°C. If the helium behaves like an ideal gas, the total energy of the system is
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