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soldi70 [24.7K]
2 years ago
6

HELP ME!!!! What is the gravitational potential energy stored in a church bell with a mass of 60 Kg hanging in a church steeple

that is 20 m high?
A. 1200 J

B. 1960 J

C. 235,200 J

D. 11, 760 J
Chemistry
1 answer:
pochemuha2 years ago
5 0

Answer:

A

Explanation:

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to help create food establishment.
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The factors in an experiment are called what
koban [17]

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Variables

Explanation:

A variable is any factor, trait, or condition that can exist in differing amounts or types.

Hope this helps :  )

6 0
3 years ago
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At 25 °c only 0.0260 mol of the generic salt ab3 is soluble in 1.00 l of water. what is the ksp of the salt at 25 °c?
Sladkaya [172]
Given:

At 25 degrees Celcius:

amount of generic salt AB3 = 0.0260 moles
Volume of solvent = 1.0 L water

Set up a balanced chemical equation:

AB3 =========> A3+ + 3B-
0.0260M             0.0260   0.078

Ksp = [A][B]^3
Ksp = 1.23 x 10^-5<span />
4 0
3 years ago
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A 2.50 g sample of zinc is heated, then placed in a calorimeter containing 65.0 g of water. Temperature of water increases from
USPshnik [31]

Answer:

719.83°C

Explanation:

The heat that the sample of Zinc gives is equal to the heat that water is absorbing. That is:

C(Zn) * m(Zn) * ΔT(Zn) = C(H2O) * m(H2O) * ΔT(H2O)

<em>Where:</em>

<em>C is specific heat (Zn: 0.390J/g°C; H2O: 4.184J/g°C)</em>

<em>m is mass (Zn: 2.50g; H2O: 65.0g)</em>

<em>ΔT (Zn: ?; H2O: (22.5°C - 20.0°C = 2.50°C)</em>

<em />

Replacing:

0.390J/g°C * 2.50g * ΔT(Zn) = 4.184J/g°C * 65.0g * 2.50

ΔT(Zn) = 697.33°C

As final temperature of Zn is 22.50°C, initial temperature is:

Initial temperature: 697.33°C + 22.50°C

719.83°C

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3 0
3 years ago
Which of the following is not good conductor of heat?
dedylja [7]

Answer:

b. stainless steel

Explanation:

b) stainless steel is not good condoctor of heat

6 0
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