Magnet A and B are of equal magnetic strength and which position will magnets A&B have the greatest attraction for toward each other

C)Weight

A)An attraction between two objects that have mass

B)Force decreases as distance increases.

grav force of massive planet increases your weight

Answer:

C)Weight

A)An attraction between two objects that have mass

B)Force decreases as distance increases.

Explanation:

Answer:

The organelle missing from E.coli is nuclear membrane.

Explanation:

A nuclear membrane is a double membrane that surrounds and protects the nucleus of a cell. The nuclear membrane is lacking because there is no need for one to protect a nucleus that does not exist. Bacteria cells are also prokaryotes, and all prokaryotes lack a nucleus.

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Answer:

D. Less and less of the moon.

Explanation:

Waning has the meaning decreasing. A waning moon is the moon that decreases in size and its illumination . Moon starts waning a day after the full moon. Its size keeps decreasing and ultimately it is not visible on the new moon day .

A day after the new moon, it starts increasing in size and brightness and is slowly visible each night, until it is completely shining on the full moon day again. This is the waxing of the moon, where its size keeps increasing.

With Earth's gravity being [tex]9.80 m/s^2[/tex] the mass is approximately 5.61 kg.

To calculate the mass of an object that weighs 55N on Earth, we need to use the formula for weight, which is w = mg, where w is weight, m is mass, and g is the acceleration due to gravity.

On Earth, g is typically [tex]9.80 m/s^2[/tex]

Therefore, we can find the mass of an object by dividing its weight by this acceleration due to gravity.

To calculate the mass (m) of an object that weighs 55N on Earth:

m = w / g

[tex]m = 55 N / 9.80 m/s^2[/tex]

This calculation results in a mass of approximately 5.61 kg.

Answer:

It is moving away from Earth.

Explanation:

As the source comes closer to the observer then we can say that its frequency will increase.

So here we know that

[tex]\frac{\Delta \nu}{\nu} = \frac{v}{c}[/tex]

here we know that

v = speed of the star

c = speed of light

now if we know that speed of the star is towards us then the frequency will increase and hence the wavelength will decrease.

So it is known as Blue shift

While if the star is moving away from us then in that case the frequency will decrease and hence the wavelength will increase.

So here it is known as Red Shift.

So here correct answer will be

It is moving away from Earth.

Answer:

Length of one stadium = 0.1556 km

Explanation:

We have the diameter of Earth = 12740 km

Thus, circumference (C) of Earth is

[tex]=2\pi \frac{Diameter}{2} \\[/tex]

[tex]=2\times \pi \times \frac{12740}{2}[/tex]

C = 40023.89 km

Eratosthenes was a Greek polymath. He was the first to calculate the circumference of Earth. He had observed that at local noon on day of Summer Solstice, when Sun is overhead for the locations on Tropic of Cancer, a place named Syene had zero shadow day. Also on the same day the objects in Alexandria casts shadow. This proved that Earth is spherical and not flat. He went further and calculated the Sun angle ([tex]\theta[/tex]) for Alexandria by using a Rod (Gnomon). He found the angle to be about 7°. He also knew the distance (D) between Alexandria and Syene which was 5000 Stadia.

Lets say length of one stadia = S km

He used this data and simple concept of geometry as given below:

[tex]\frac{\theta }{360}=\frac{D}{C}[/tex]

[tex]=\frac{7}{360}=\frac{5000 \times S}{40023.89}[/tex]

[tex]=5000 \times S = \frac{7\times 40023.89}{360}[/tex]

[tex]=S = \frac{7\times 40023.89}{360\times5000}[/tex]

S = 0.1556 km

Answer:

Explanation:

The uplift caused a wide range of elevations and climates in the Sierra Nevada, which are reflected by the presence of five life zones (areas with similar plant and animal communities).

Answer:

The shape will be elliptical hopefully this helps!

Answer:

Explanation:

The sound of a ringing cellphone could not be transmitted or heard if the cellphone is enclosed in some sort of closed container from which the air has been removed.  Sound is a mechanical wave, and so it must have some material substanceto travel through.  Otherwise sound cannot travel from one place to another.  The sound of the ringing could not travel through the vacuum inside the container if all the air were removed.

Answer: The frequency of Wave 2 is double the frequency of Wave 1.

The orbital motion is slower and gravitational attraction is weaker.

Kepler's law of planetary motion states that, the line joining a  planet and the sun sweeps equal areas in equal intervals of time. That means, as the  planet approaches the sun it speeds up and as it moves away from the sun, it  slows down.

Here,

The planet is farther from the sun.

According to Kepler's law of planetary motion, the speed of this planet is decreasing. So, its orbital motion becomes slower and as the distance between the planet  and the sun increases, the gravitational attraction between them also becomes weak.

Hence,

The orbital motion is slower and gravitational attraction is weaker.

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Answer:

D  The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.

Explanation:

Good Luck ^^

The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas. The correct option is D.

The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object in order to accelerate it.

We must put in effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed.

Energy is absorbed by the water, increasing the kinetic and potential energy of the water molecules and converting them from a liquid to a gas.

Water molecules usually have the highest kinetic energy in the steam phase.

Thus, the correct option is D.

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Answer:

A) [tex]v = \frac{2\pi r}{T}[/tex]

Explanation:

As we know that the speed of the object is defined as the the ratio of total distance and total time taken

now as we know that here the distance along the path of the orbiting object is total length of the circle

so it is given as

[tex]L = 2\pi r[/tex]

also we know that

time period to complete the orbit is given as

[tex]t = T[/tex]

now the speed is given as

[tex]v = \frac{d}{t}[/tex]

[tex]v = \frac{2\pi r}{T}[/tex]

The correct answer is C. Thermal conductivity

Explanation:

Conduction occurs as heat, electricity, etc. are transmitted from one body to another. In the case of thermal conductivity, this refers to the property of one material or body to transmit or conduct heat. This property is measured in Watts (energy) per meter(distance)-Kelvin (temperature). For example, the thermal conductivity of copper is around 385 while the one of ice is 1.6, which indicates copper has a higher capability to conduct heat. Thus, the degree to which a material can transmit heat is thermal conductivity.