3 years ago

Which of the following is conserved? (pick 1)

Chemistry

1 answer:

Scilla [17]3 years ago

4 0

<em><u>CORRECT ANSWER </u></em>

Both Mass and Energy

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A bowling ball has a mass of 10.0kg. If a net force of 35N is applied to the ball, what’s the acceleration?

Paraphin [41]

Answer:

Acceleration = 3.5 m.s⁻²

Explanation:

Definition:

The acceleration is rate of change of velocity of an object with respect to time.

Formula:

a = Δv/Δt

a = acceleration

Δv = change in velocity

Δt = change in time

Units:

The unit of acceleration is m.s⁻².

Acceleration can also be determine through following formula,

F = m × a

a = F/m

Given data:

Force = 35 N (N = Kg. m.s⁻²)

Mass = 10.0 Kg

a = ?

Formula:

a = F/m

a = 35 Kg. m.s⁻²/ 10.0 Kg

a = 3.5 m.s⁻²

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4 years ago

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Answer:

Explanation:

The correct answer is: A) "A concentric contraction because muscles cause the elbow joint and arm to move"

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4 years ago

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If 25.8 grams of BaO dissolve in enough water to make a 212-gram solution, what is the percent by mass of the solution?

Igoryamba

The correct answer is 12.2% BaO.

The solution is found by dividing the mass of the BaO, which is 25.8 grams, by the total mass of the solution, which is 212 grams, then multiplying it by 100 to get the percentage:
$\frac{25.8}{212}*(100) =12.2%$

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3 years ago

What can you assume about the anions in the ionic compound copper(II) fluoride? A. The charge on the ionic compound is 2+.

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The answer is C, because if the copper has a +2 charge, the fluoride must have a -2 charge in order to cancel out.

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Which of the following are potential benefits of wind turbines? (may be more than one answer)

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All except for C. And it's good for the environment.

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