1 year ago

Ellipses have only one focus. Question 14 options: True False

Physics

1 answer:

laila [671]1 year ago

6 0

Answer:

False. This is because ellipses have 2 focus points and not only one.

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Does aluminum foil refract light? Why?

nikitadnepr [17]

yes it does it because the material cause it to refract and the stronger it is the more it will refract

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2 years ago

An apparatus like the one Cavendish used to ﬁnd G has large lead balls that are 5.2 kg in mass and small ones that are 0.046 kg.

Ber [7]

Answer:

The magnitude of gravitational force between two masses is $4.91\times 10^{-9}\ N$ .

Explanation:

Given that,

Mass of first lead ball, $m_1=5.2\ kg$

Mass of the other lead ball, $m_2=0.046\ kg$

The center of a large ball is separated by 0.057 m from the center of a small ball, r = 0.057 m

We need to find the magnitude of the gravitational force between the masses. It is given by the formula of the gravitational force. It is given by :

$F=G\dfrac{m_1m_2}{r^2}\\\\F=6.67259\times 10^{-11}\times \dfrac{5.2\times 0.046}{(0.057)^2}\\\\F=4.91\times 10^{-9}\ N$

So, the magnitude of gravitational force between two masses is $4.91\times 10^{-9}\ N$ . Hence, this is the required solution.

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2 years ago

A complete circuit is often referred to as a(n) _______ circuit

aivan3 [116]

Answer:

Complete Circuit

Explanation:

A circuit is defined as a completed path for voltage to flow from a source of voltage through a load and back to the source. A complete circuit or path is often referred to as a(n) ? circuit. Before current can flow in a circuit, the circuit must be closed. 100% right

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2 years ago

Which of the following statements is true about scientific theories?

artcher [175]

<span>d. scientific theories summarize patterns found in nature

Hope this helps!</span>

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2 years ago

The mass of the sun is 1.9891030 kg and the mass of the Earth is 5.9721024kg. If the Earth’s acceleration toward the sun is 0.00

saul85 [17]

Answer:

this is the answer according to my calculations

Explanation:

0.001.9

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2 years ago