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Explanation:

Let & mean "is proportional to"

F & [m(V - Vo)]/∆t

We can see that increase in the applied force equals increase in the change in momentum (increase in change of velocity).

Also,

An increase in the mass of the object requires more force to be applied for work to be done.

Answer:

heat is removed.

Explanation:

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Answer:

energy is removed.

Because entropy is a dynamicquality realting to the system being unavaliable to do conversions because of the energy measures being low.

Answer:

D biomag

Explanation:

Mercury tends to build up in fish tissues and is present in larger quantities in large predatory fish than in small, herbivorous fish. This phenomenon is known as biomagnification. The correct option is D.

Biomagnification is the process by which certain substances, such as heavy metals like mercury, become increasingly concentrated in the tissues of organisms as they move up the food chain. In other words, the higher up an organism is in the food chain, the more likely it is to accumulate higher levels of these substances. This is because predators consume many smaller prey, each of which may have accumulated small amounts of the substance, leading to a build-up of the substance in the predator's tissues over time. This phenomenon has been well-documented in aquatic ecosystems, where mercury and other pollutants can accumulate in large predatory fish.

The other options are not correct:

Option A. Corrosivity refers to the ability of a substance to corrode or eat away at other materials. It is not relevant to the accumulation of mercury in fish tissues.

Option B. Non-persistence refers to the short-term or temporary nature of a substance or effect. It does not describe the long-term accumulation of mercury in fish tissues.

Option C. Bioremediation refers to the use of living organisms, such as bacteria or plants, to help clean up polluted environments. While this process may be used to reduce the levels of mercury in contaminated areas, it does not explain the process of biomagnification in fish.

Therefore, The correct option is D. biomagnification.

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Answer:

0.826

1 S.f.

0.8 m/s

Explanation:

S (speed) = D (Distance) / T (Time)

Answer:

Explanation:

Potential energy is defined as the "stored" energy inside of the field, in our case the graviational field. Since the force of gravity is conservative, the reference point for our potential energy is arbitrary. This means that we can arbitrarily set where the potential energy is zero. The easiest case is setting the potential energy zero when the box is on the floor. The potential energy is defined as:

[tex]U=mgh[/tex]

We are given the mass, the height from the ground, and the graviational acceleration is 9.8m/s^2. Plugging this in gives:

[tex]U=(0.25kg)(9.8m/s^2)(2.3m)=5.64J[/tex]

Kinetic energy is defined as the energy of the configuration during motion. Before the box begins to fall, it is completely stationary. Therefore the kinetic energy is zero.

Answer:

a.A

Explanation:

when x=0, the power becomes 0 and the exponent becomes 1

anything to the power of 0 is 1

in addition, the exponent only applies to the 'e' term, hence the e term will become 1 and multiply A to give you A

Answer:

The speed of light measured in any frame is c = 3.00E8 m/s.

This is one  of Einstein's  postulates of special relativity.

Answer:

milligram 1000g

kilogram 1/1000 g

electrons negative particle outside nucleus

speed km/h

potential energy at rest

mixture sawdust + salt + iron filings

Explanation:

:D

1. 1000g -kilogram

2.1/1000 g - milligram

3. negative particle outside nucleus - electrons

4. km/h - speed

5.energy at rest - potential
6.  centimeter - cm

7. Sawdust + salt + iron filings - mixture

The energy by  virtue of its position is called the potential energy.

The km/h is the unit of speed.

Milligram is written as 1/1000 g.

1000 g is equal to 1 kilogram.

Electron are the negatively charged subatomic particles rotating outside the nucleus.

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Answer:

B vacuoles

Explanation:

Answer:

increases as more components are added. 

Answer:

parallel circuit, hopefully I wasn't late in sending the answer

The most logical explanation is the incandescent bulb produces more forms of energy than just light, like heat.

The principle of conservation of energy can be used to explain to reason behind the more energy required for an incandescent bulb to produce the same light as a fluorescent light bulb.

Some part of the energy required by the incandescent bulb is used to produce light while some is used to generate heat.

For fluorescent light bulb, all the energy are used to produce light, leading to a better efficiency and less energy required to produce same amout light as  incandescent bulb.

Thus, the most logical explanation is the incandescent bulb produces more forms of energy than just light, like heat.

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Answer:

a the structure labelled as cell wall

Explanation:

a difference between plant cells and animal cells is the most animal cells are round whether most plant cells are rectangular. plants cells have a rigid cell wall that surrounds the cell membrane.animal cell do not have cell wall when looking under a microscope, the cell wall is an easy way to distinguish between animal and plant cells

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Answer:

I think the answer is 0.2 m/s2

Explanation:

Answer:

Advantage: Mercury has a lower freezing point (-1140 degree Celsius)

Disadvantage: Mercury has a lower boiling point

The last equation gives you the tension in the string on the right:

[tex]T_2 = 2Mg - 2Ma = 2M (g-a) = \boxed{33.2 \, \mathrm N}[/tex]

Answer:

They represent compounds and mixtures

Explanation:

kinetic energy would beeeeeeeeeeeee 248 J

According to Myers-Briggs, a charcteristic that is common to judging is  liking things settled and organized.

The term judging has to do with the quest for order and organization. It is one of the personality traits as outlined by Myers-Briggs.

The characteristic that is common among the people that exhibit the judging personality trait is liking things settled and organized.

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Answer:likes to have things settled and organized

Explanation:

bc I just took the test so ik it’s right

It makes it harder for the defense to cover you.

The weight watcher must climb : 3.45 km to work off the equivalent of a large piece of chocolate cake rated at 670 calories.

First step : convert the energy to joules

670 calories to Joules

E = 670 * 10³ * 4.184

  = 2803280 J

Next step : Equate energy to gravitational potential energy

2803280 J = mgh

2803280 = 82.9 * 9.8 * h

Therefore :

h = 2803280 / ( 812.42 )

  = 3451 m  = 3.45 Km

Hence we can conclude that The weight watcher must climb : 3.45 km

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OD

Explanation:

both gravitational force and speed will increase

The gravitational force will increase and speed will decrease. So, the correct option is c.

Any two objects in the universe are attracted towards each other by the gravitational force, regardless of whether their masses are equal or not.

Here,

Newton's universal law of gravitation states that the force of attraction between any two bodies is inversely proportional to the square of the distance between them and directly proportional to the product of their masses.

So, the gravitational force of the satellite,

F ∝ 1/R²

where R is the radius of the circular orbit.

The equation for speed of the satellite is given by,

v = √Rg

where g is the acceleration due to gravity.

So, the speed is directly proportional to the square root of the radius of the orbit.

v ∝ √R

Therefore, as a result of the decrease in the radius of the orbit, the gravitational force of the satellite will increase, and its speed will decrease.

Hence,

The gravitational force will increase and speed will decrease.

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Answer:

A. Increases is the answer.

Answer:

The Principle of Moments states that when a body is balanced, the total clockwise moment about a point equals the total anticlockwise moment about the same point.

Explaining with equation

Moment =force F x perpendicular distance from the pivot d. Moment = Fd.

Answer:

The objects kinetic energy increases as it falls from some height.

Given the value of possible error, the relative error of the measurement is 0.0095.

Given the data in the question;

Relative error is simply the ratio of the absolute or possible error of a measurement to the measurement its self.

Relative error is expressed as;

[tex]RE = \frac{e}{m}[/tex]

Where e is the absolute or possible error and m is the measurement being taken.

To determine the relative error, we substitute our given values into the expression above.

[tex]RE = \frac{0.04cm}{4.2cm} \\\\RE = 0.0095[/tex]%

Therefore, given the possible error, the relative error of the measurement is 0.0095.

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Answer:

you can use this differenation in density to seperate them by extracting the top layer of the water or where the oil is at and sperate it like that, but that is one methond compared to sing a varying amount. but it also depends on the type of oil as well because some oil is denser than water (i belive, do not quote me on this).

Explanation:

Answer:

600 J

Explanation:

900 j = 300j = 600 j lost due to friction

Energy lost due to friction is 600 J.

The kinetic energy before and after friction is given as 900J and 300J.

   The force that resists the sliding or rolling over one object with another is called friction. The energy which possess in virtue of being in motion is said to be Kinetic Energy.

                                   f = μN

                      Energy lost = 900J - 300J

                                          =  600J

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Answer:

Some motor tyre contain Graphite to contain friction.

Answer:

to contain friction

Explanation: