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Alenkasestr [34]
3 years ago
7

A student uses a magnet to move a 0.025 kg metal ball. The magnet exerts a force of 5 N, which causes the ball to begin moving.

What is the acceleration of the ball when it beings to move?
a
5.025 m/s2

b
5 m/s2

c
0.125 m/s2

d
200 m/s2
Chemistry
1 answer:
vichka [17]3 years ago
6 0

Answer:

b

Explanation:

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Answer :

Charles's Law : It is defined as the volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

Mathematically,

V\propto T

                                Boiling water bath        Cool bath 1       Cool bath 2

Temperature (⁰C)                  99                              17                       2

Temperature (K)(T)    273+99=372             273+17=290      273+2=275

Volume of water                  0.0                             27.0                34.0

in cool flask (mL)

Volume of water=              135.8                           135.8               135.8

Air in flask (mL)

Volume of air                    135.8                           108.8               101.8

in cool flask (V)

\frac{V}{T}                                \frac{135.8}{372}=0.365             \frac{108.8}{290}=0.375         \frac{101.8}{275}=0.370

The graph volume versus temperature for a gas is shown below.

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I am having some trouble figuring out how to approach the following problem: A 75.0-mL volume of 0.200 M NH3 (Kb=1.8×10−5) is ti
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<span>We look at the end of the day:

n(HNO3) added = 0.500*17.0/1000 = 0.00850 mol
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pOH = -log[OH-] ≈ 5.8956 pH = 14 - pOH ≈ 8.10</span>
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