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slavikrds [6]
3 years ago
10

A circuit is shown in the picture above. Energy is transferred first from the battery to the circuit wire and then from the circ

uit wire to
the light. What energy transformations occur between these two transfers?
OA. Energy is transformed first from chemical energy to mechanical energy and then from mechanical energy to light and
heat energy
OB. Energy is transformed first from chemical energy to light and heat energy and then from light and heat energy to
electrical energy
OC. Energy is transformed first from chemical energy to electrical energy and then from electrical energy to light and heat
energy
OD Energy is transformed first from mechanical energy to chemical energy and then from chemical energy to light and heat
energy
Chemistry
1 answer:
sp2606 [1]3 years ago
8 0

Answer:its D.

Explanation:

Energy is transformed first from chemical energy to electrical energy and then from electrical energy to light and heat energy.

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radioisotope actinium 225 has half life of 10 days, I begin with 16 kg of this isotope, how much will remain after 40 days?
Igoryamba
N(t)=N_{0}(\frac{1}{2})^\frac{t}{\tau_{_\frac{1}{2}}}}\\\\
N_{0}=16kg\\
t=40days\\
\tau_{_\frac{1}{2}}}=10days\\\\\\
N(t)=16kg*(\frac{1}{2})^{\frac{40}{10}}=16kg*\frac{1}{16}=1kg
3 0
3 years ago
7. A solution containing 90grams of KNO3 per 100. grams of H2O at
Tomtit [17]

Answer:

(4) concentrated and supersaturated

Explanation:

At 50.°C, 90g of KNO3 lies above the solubility curve [on the Regents Reference Table G]. This indicates that the solution is supersaturated, meaning it contains more solute than will naturally dissolve, and was formed when a saturated solution cooled. Furthermore, the percent concentration of this solution is 90% KNO3 making this solution concentrated. This can be calculated using the formula for mass percent concentration.

Percent Mass = <u>Mass of Solute (g)</u> x 100

                         Mass of Solution (g)

5 0
3 years ago
Which of these is an example of mutualism
Alex777 [14]
What are the examples ?
6 0
3 years ago
Read 2 more answers
What is the weighted average of a nail in the sample data given?
Natalka [10]

The weighted average of the nail in accordance with the given data is 11.176g.

<h3>How to calculate weighted average?</h3>

Weighted average is an arithmetic mean of values biased according to agreed weightings.

The weighted average of the nail in the image above can be calculated by multiplying the decimal abundance with the mass of the nail, then summed up as follows;

Weighted average = (decimal abundance × mass 1) + (decimal abundance × mass 2)

Weighted average = (0.12 × 3.3) + (0.88 × 12.25)

Weighted average = 0.396 + 10.78

Weighted average = 11.176g

Therefore, 11.176g is the weighted average of the nail

Learn more about weighted average at: brainly.com/question/28042295

#SPJ1

5 0
1 year ago
The noble-gas notation for tin (Sn) will contain the symbol Ar Kr Xe Rn
KIM [24]

Answer: Noble-gas notation of Sn contains Kr.

Explanation: Tin ( Sn)  is an element having atomic number 50.

Nearest noble gas to this element is Krypton which has an atomic number 36.

Electronic configuration or noble-gas notation for Sn is written as :

Sn=[Kr]4d^{10}5s^25p^2

As seen from above, Noble gas Krypton having symbol 'Kr' is coming in the electronic configuration for Tin.

3 0
3 years ago
Read 2 more answers
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