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3 years ago

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Which planets can never be seen at midnight? A. The Superior planets. B. The Inferior planets C. All planets can be seen at midn

ight if you wart D. No planets can be seen at midnight enough.

1 answer:

sweet-ann [11.9K]3 years ago

7 0

Answer:

A

Explanation:

Superior planets are further away from the sun than the Inferior planets making the superior planets easier to see at midnight.

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You have a string with a mass of 0.0127 kg. You stretch the string with a force of 9.33 N, giving it a length of 1.93 m. Then, y

melomori [17]

Answer:

wavelength = 0.968 m

frequency = 39.02 Hz

Explanation:

given data

mass = 0.0127 kg

force = 9.33 N

length = 1.93 m

to find out

wavelength and Frequency

solution

we know here linear density that is

linear density = $\frac{mass}{length}$ .........1

linear density = $\frac{0.0127}{1.93}$

linear density = 6.5803 × $10^{-3}$ kg/m

so

wavelength will be here

wavelength = $\frac{2L}{n}$ ..............2

here n = 4 for forth harmonic

wavelength = $\frac{2*1.93}{4}$

wavelength = 0.968 m

and

frequency will be for 4th normal mode of vibration is

frequency = $\frac{4}{2L} \sqrt{\frac{tension}{linear\ density} }$ ..........3

frequency = $\frac{4}{2*1.93} \sqrt{\frac{9.33}{6.5803*10^{-3}} }$

frequency = 1.036269 × 37.654594

frequency = 39.02 Hz

5 0

3 years ago

Which statement is true about the formation of bonds?

Ivenika [448]

There are no true statements on the list you attached.

7 0

3 years ago

A student creates an electromagnet, How could the student create a larger current in the electromagnet?

antoniya [11.8K]

Answer

When an electric current flows in a wire, it creates a magnetic field around the wire. This effect can be used to make an electromagnet. A simple electromagnet comprises a length of wire turned into a coil and connected to a battery or power supply.

A coil of insulated wire is wrapped around an iron nail. One end of the coil of wire is connected to a battery. The other is connected to a switch in the circuit

A simple electromagnet

You can make an electromagnet stronger by doing these things:

wrapping the coil around a piece of iron (such as an iron nail)

adding more turns to the coil

increasing the current flowing through the coil

There is a limit to how much current can be passed safely through the wire because the resistance of the wire causes heating.

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3 years ago

Describe what happens to the gravitational force between two objects when their masses are increased

Inessa [10]

Answer:

So as the mass of either object increases, the force of gravitational attraction between them also increases. If the mass of one of the objects is doubled, then the force of gravity between them is doubled. If the mass of one of the objects is tripled, then the force of gravity between them is tripled.

Explanation:

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3 years ago

Listed in the Item Bank are some key terms and expressions associated with the categories seen in the Venn Diagram. To find out

Vinvika [58]

Compounds
Chemically combined
Fixed proportions
Components change properties

Both
Made of elements
2 or more component

Mixtures
Physically combined
Variable proportions
Components retain properties

Hope this helps!

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3 years ago