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Rainbow [258]
3 years ago
14

A crane lifts a 5,800-N block from the ground to 20 m above the ground in 80 seconds. How much Power

Chemistry
1 answer:
earnstyle [38]3 years ago
3 0

Answer:

1450 W

Explanation:

<u>5800n x 20m</u>        =1450w

      80s

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2 years ago
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Stolb23 [73]

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8 0
2 years ago
What is the ph of a solution with [h3o+] = 1 × 10-9 m?
FrozenT [24]
PH scale is used to determine how acidic, basic or neutral a solution is
pH can be calculated using the H₃O⁺
ph can be calculated as follows
pH = - log[ H₃O⁺]
[H₃O⁺] = 1 x 10⁻⁹
pH = - log [1 x 10⁻⁹]
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7 0
2 years ago
A steel cylinder has a pressure of 550 torr at 177 degrees Celsius. What will be the pressure if the temperature is decreased by
storchak [24]

Answer:

270.34

Explanation:

pressure, 550                pressure, 270.34

______________   =   ___________

177 degree celsius.        87 degree celsius.

550 x 87 / 177 = 270.34

8 0
2 years ago
What causes the sugar to dissolve in water?
vaieri [72.5K]

Answer:

Sugar dissolves in water because energy is given off when the slighty polar sucrose molecules form intermoleeular bonds with the polar water molecules.

Explanation:

3 0
2 years ago
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