V_f = v_i*a*t
(21m/s- 0m/s)/(9.8m/s^2)=t
2.14 seconds
The answer to this question is the first choice. In the hydrogen fusion process, the first step involves the collision of two protons to emit an antielectron and a neutrino. Only the first choice of
1_1H + 1_1H →2_1H + e^+ + v + energy
reflects this process. A hydrogen ion with a mass of one and number protons of 1 means a proton.
Explanation:
can u tell me which language is that
Answer:
Hydrosphere
Explanation:
One of the main components of Earth's interdependent physical systems is the hydrosphere. The hydrosphere is the sum of Earth's water, in the ocean, the ground, on the surface, and in the air.