Answer:
Explanation:
From the exercise we know the final x distance, the angle which the projectile is being released and acceleration of gravity
From the equation of x-position we know that
Solving for 
(1)
Now, if we analyze the equation of y-position we got
At the end of the motion y=0
Knowing the equation for in (1)
Solving for t
Now, we can solve (1)
<span>Artificial fertilizers are made chemically. They emphasize three main</span>
Answer:
the one that has more negative sights so the first hand on your right :)
Answer:
C. 28.09 amu
Explanation:
The natural occurring element exist in 3 isotopic forms: namely X-28 (27.977 amu, 92.23% abundance), X-29 (28.976 amu, 4.67% abundance) and X-30 (29.974 amu, 3.10% abundance).
The atomic weight of elements depends on the isotopic abundance. If you know the fractional abundance and the mass of the isotopes the atomic weight can be computed.
The atomic weight is computed as follows:
atomic weight = mass of X-28 × fractional abundance + mass of X-29 × fractional abundance + mass of X-30 × fractional abundance
atomic weight = 27.977 × 0.9223 + 28.976 × 0.0467 + 29.974 × 0.0310
atomic weight = 25.8031871 + 1.3531792 + 0.929194
atomic weight = 28.0855603 amu
To 2 decimal place atomic weight = 28.09 amu
