Which of the following objects has the greatest gravity?1.you
2.the sun
3.Earth
4.the moon

Answers

Answer 1

Answer: I think 2 bug not sure

Answer 2

Answer:

Final answer:

The Sun has the greatest gravity among the listed objects because gravity is dependent on mass and the Sun has a larger mass than Earth, the Moon, or a person.

Explanation:

Among the given options, the object with the greatest gravity isthe Sun. Gravity is dependent on both mass and distance. The Sun has a much larger mass compared to Earth, the Moon, or a human being, hence it has the largest gravitationalforce.

As a comparison, Earth's gravity pulls us down and keeps us from floating away, but the Sun's gravity is so strong that it keeps Earth and the other planets in our Solar system in their orbits.

Learn more about Gravity here:

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Which type of bond occurs between water moleculesnonpolar covalent

metallic

hydrogen

ionic

Answers

$\textsf{O-H bond is covalent}\n\textsf{but H-H bond occurs between water molecules.}\n\textsf{answer is hydrogen bond}$

Answer:

This is the answer ˋ( ° ▽、° ) (☞ﾟヮﾟ)☞ Hope it helps. :)

Explanation:

Water near the poles would most likely be stored as

Answers

Hey there!

Answer: Glaciers

Water near the poles would most likely be stored as glaciers. Glaciers are slow moving rivers that are a buildup of ice and snow.

Thank you!

Nuclear energy use can negatively impact water quality. Please select the best answer from the choices provideda. True
b. False

Answers

The correct answer is B. Nuclear energy use do not have a negative impact on water quality. Although, it might have an effect on life in water bodies. Nuclear power generation requires a lot of water for cooling and heating. Many power plants are situated near bodies of water because this is where they get their water for processing. They use screens in order to minimize entry of foreign materials and in these screens aquatic organisms might be trapped and killed.

the correct answer is true.

11 point
Which of the following is a true statement about light?
Light cannot be wave and a particle.
Light travels at the same speed as a really loud sound.
Light waves must have a medium in which to transfer energy
Light travels at 3.0 x 108 m/s in a vacuum.

Answers

Answer:

Light travels at 3.0 x 108 m/s in a vacuum.

Explanation:

Light travels at 3.0 x 108 m/s in a vacuum.

stone thrown vertically upward with speed of 15.5m/s from edge of cliff 75.0m high. how much later does it reach bottom of cliff?

Answers

Answer:

Approximately $5.66\; {\rm s}$ , assuming that $g = 9.81\; {\rm m\cdot s^(-2)}$ and that air resistance is negligible.

Explanation:

Let upward be the positive direction. Under the assumptions, acceleration of the stone would be $a = (-g) = (-9.81)\; {\rm m\cdot s^(-2)}$ (negative since the stone is accelerating downward.)

The duration of the flight can be found in the following steps:

Find velocity right before landing given displacement, initial velocity, and acceleration.
Find duration of the flight from acceleration and the change in velocity.

In SUVAT equation $v^(2) - u^(2) = 2\, a\, x$ :

$v$ is the final velocity right before landing (needs to be found,)
$u = 15.5\; {\rm m\cdot s^(-1)}$ is the initial velocity,
$a = (-9.81)\; {\rm m\cdot s^(-2)}$ is acceleration, and
$x = (-75.0)\; {\rm m}$ is displacement (downward because the stone landed below where it was launched.)

Rearrange this equation to find $v$ :

$\begin{aligned}v &= \sqrt{u^(2) + 2\, a\, x} \n &= \sqrt{(15.5)^(2) + 2\, (-9.81)\, (-75.0)} \; {\rm m\cdot s^(-1)} \n &\approx -40.05\; {\rm m\cdot s^(-1)}\end{aligned}$ .

In other words, the velocity of this stone has changed from the initial value of $u = (15.5)\; {\rm m\cdot s^(-1)}$ to $v \approx (-40.05)\; {\rm m\cdot s^(-1)}$ during the flight. Divide the change in velocity by acceleration $a = (-9.81)\; {\rm m\cdot s^(-2)}$ (the rate of change in velocity) to find the duration of the flight:

$\begin{aligned}t &= (v - u)/(a) \n &\approx ((-40.05) - (15.5))/((-9.81))\; {\rm s} \n &\approx 5.66\; {\rm s}\end{aligned}$ .

In other words, the stone would be in the air for approximately $5.66\; {\rm s}$ .

A softball player leaves the batters box, overruns first base by 3.0 meters, and then returns to first base. Compared to the total distance traveled by the player, how much smaller or larger is the magnitude of the players total displacement from the batters box?

Answers

The distance traveled during his run is 6 meters more than his displacement. Displacement only depends on the end points. The route taken is irrelevant to displacement.

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