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sleet_krkn [62]
3 years ago
11

The position of an element on the periodic table help scientists predict the number of electrons an atom will gain or lose durin

g ion formation according to the periodic table of elements which element is most likely to gain two electrons when it forms an ion?
A. Calcium
B. Mercury
C. Oxygen
D. Iodine
Physics
1 answer:
Llana [10]3 years ago
8 0
The answer is calcium I did it on edunity good luck
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A golfer hits her tee-shot due north towards the fairway. Her shot has an initial velocity of 60 m/s. A 15 m/s wind is blowing i
vovangra [49]

Answer:

c=71.4m/s

\theta=8.54\textdegree

Explanation:

From the question we are told that

Initial velocity of 60 m/s

Wind speed V_w= 15 m/s \angle  45 \textdegree

Generally Resolving vector mathematically

  sin(45\textdegree)15=10.6\\cos(45\textdegree)15=10.6

Generally the equation Pythagoras theorem is given mathematically by

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c=\sqrt{10.6^2 +(10.6+60)^2}

Therefore Resultant velocity (m/s)

c=71.4m/s

b)Resultant direction

Generally the equation for solving Resultant direction

\theta=tan^-1(\frac{y}{x})

Therefore

\theta=tan^-1(\frac{10.6}{70.6})

\theta=8.54\textdegree

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