The horizontal acceleration of a projectile
a. is zero
b. stays constant
c. continuously increases
d. continuously decreases
e. sometimes decreases and sometimes increases
Question 2
What happens in beta plus decay?
a. The nucleus emits an electron, a neutron becomes a proton, and the atomic number goes up.
b. The nucleus emits a positron, a proton becomes a neutron, and the atomic number goes down.
c. The nucleus captures an electron, a proton becomes a neutron, and the atomic number goes down.
d. The nucleus captures a positron, a neutron becomes a proton, and the atomic number goes up.
e. The nucleus emits an electron, a neutron becomes a proton, and the atomic number goes down.
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