2 years ago

Which, if any, of these statements are true? (More than one may be true.) Explain your choice or choices.

Physics

1 answer:

MArishka [77]2 years ago

5 0

Answer:

The following statement are true

A. A battery supplies energy to a circuit.

It convert chemical energy to electrical energy by the using of electrodes.

B. A battery is a source of potential difference.

It contains voltage difference between terminals.

C. The potential difference between the terminals of the battery is always the same.

Battery is a source of voltage not current.

The current leaving from the battery depends on the resistance.

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A basketball with mass of 0.8 kg is moving to the right with velocity 6 m/s and hits a volleyball with mass of 0.6 kg that stays

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Answer:

26.67 m/s

Explanation:

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A cylindrical tank of methanol has a mass of 40 kgand a volume of 51 L. Determine the methanol’s weight, density,and specific gr

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Answer:

Weight W = 392.4 N

Density $\rho$ = 784.31 $\frac{kg}{m^{3} }$

Specific gravity S = 0.78431

Force required F = 10 N

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Given data

Mass (m) = 40 kg

Volume (V) = 0.051 $m^{3}$

Weight W = m × g

⇒ W = 40 × 9.81

⇒ W = 392.4 N

This is the weight of the methanol.

Density $\rho$ = $\frac{mass }{volume}$

⇒ $\rho$ = $\frac{40}{0.051}$

⇒ $\rho$ = 784.31 $\frac{kg}{m^{3} }$

This is the density of the methanol.

Specific gravity (S) = $\frac{\rho}{\rho_{water} }$

⇒ $S = \frac{784.31}{1000}$

⇒ S = 0.78431

This is the specific gravity of the methanol.

Force needed to accelerate this tank F = ma

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This is the force required to accelerate the tank.

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