Science | Heat
Analyze the given examples, then, write C if it is convection and NC if it is not.
I'd appreciate the help :))!

Answer:

v = 20 m/s

Explanation:

Let's use v = u + at for uniform acceleration.

v = finaly velocity

u = initial velocity

a = acceleration

t = time

Since we start from rest, our initial velocity is zero.

[tex]v = 0 + 4(5)[/tex]

[tex]v = 20 m/s[/tex]

Explanation:

1.989 × 10^30 kg

1.989 × 10^30 kg

Answer:

Condensation is your answer

Explanation:

Condensation is the process of steam rising back into the atmosphere and the steam would be the evaporation "steam" hope this helped

Steam rising from the boiling water causes the whistle sound, which means that the convection part of the water cycle is present here.

The process of convection entails the movement of a heated fluid, such as air or water, in order to transfer heat.

Convection is caused by the fact that most fluids have a tendency to expand when heated, which causes them to become less dense and rise due to the increased buoyancy. The homogeneous heating of air in a heated room or water in a kettle is due to circulation generated by this effect: heated particles expand the area they move in by moving faster against each other, rise, and afterwards cool and close again, increasing density and causing a corresponding sinking.

In forced convection, fluid is carried using mechanisms other than those that result from differences in density with temperature. Examples of forced convection include the air movement by a fan or water by a pump.

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#SPJ5

[tex][Hello,BrainlyUser][/tex]

Answer:

False

Explanation:

Some places are more endowed than others.For example, some regions have lots of water (ocean and seas). While others have lots of minerals and forestlands. In addition, other have metallic rocks, wildlife, fossil fuels, and so on. Thus, we can conclude that Natural resources are not evenly distributes across the world.

[CloudBreeze]

Natural resources are evenly distributed across the world

O True

O False ✓

The effects of gravity if we were dropped out in space is the feeling of weightlessness.

This is defined as the universal force of attraction acting between all matter.

In space, there is no ground to push against astronauts hence the feeling of weightlessness by the astronauts which was why it was chosen as the nost appropriate choice.

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Answer: C

Explanation:

Resistors R1, R2 and R3 are in  parallel so

1/R1 + 1/R2 + 1/R3 = 1 ohm

adding Resistor 'R' make it 2ohm + 1 ohm = 3 ohm

Whereas for current use formula I = V/R

Answer:

100 volts

Explanation:

V= IR

V= 0.5×200

V= 100 volts

The statement 'savanna regions developed during the Triassic period' is TRUE. It is a type of biome.

A savanna is a type of grassland biome located on low latitudes, in which grasses are the dominant vegetation.

Savana biome is characterized by warm temperatures all year and high levels of precipitation during the summer.

Moreover, the Triassic period is a geological period that ended 145 million years (Mya) ago.

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Answer:

true

Explanation:

Explanation:

The velocity of the wave having a frequency of 458 Hz and a wavelength of 0.74 m is 338.92 m/s

The velocity of a wave is related to its frequency and wavelength according to the following equation:

Velocity (v) = wavelength (λ) × frequency (f)

v = λf

v = λf

v = 0.74 × 458

v = 338.92 m/s

Thus, the velocity of the wave is 338.92 m/s

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‎ㅤ➙ Mechanical Advantage= 1.5

Mechanical advantage allow to perform tasks much easier in terms of the force needed to apply, but must always obey the conservation of energy. Mechanical advantage is the measure of the ratio of output force to input force needed in a system, used to analysis the force in simple machines like livers and pulleys.

Mechanical advantage is given by:

[tex] \qquad\hookrightarrow\quad {\pmb{\sf{MA =\dfrac{Load}{effort} }} }[/tex]

We are provided with:

Therefore,

[tex] :\implies\quad \sf{MA = \dfrac{L}{E} }[/tex]

[tex] :\implies\quad \sf{ MA = \dfrac{6\cancel{00}}{4\cancel{00}}}[/tex]

[tex] :\implies\quad \sf{MA=\dfrac{6}{4} }[/tex]

[tex]: \implies\quad \sf{ MA =\dfrac{3}{2}}[/tex]

[tex]: \implies\quad\underline{\underline{\pmb{ \sf{ MA = 1.5}}}}[/tex]

‎ㅤ‎ㅤ‎ ‎ㅤ‎ㅤ‎~Hence, the mechanical advantage is 1.5

Question :-

Answer :-

[tex] \rule {180pt} {2pt} [/tex]

Given :-

To Find :-

Solution :-

As per the provided information in the given question, the Load is given 600 N . Effort is given as 400 N . And, we have been asked to calculate the Mechanical Advantage .

For calculating the Mechanical Advantage , we will use the Formula :-

[tex] \bigstar \: \: \boxed{ \sf{ \: Mechanical \: Advantage \: = \: \dfrac{Load}{Effort} \: }} [/tex]

Therefore , by Substituting the given values in the above Formula :-

[tex] \dag \: \: \sf{Mechanical \: Advantage \: = \: \dfrac{Load}{Effort} } \\ [/tex]

[tex] \longmapsto \: \: \sf{Mechanical \: Advantage \: = \: \dfrac{600}{400} } \\ [/tex]

[tex] \longmapsto \: \: \sf{Mechanical \: Advantage \: = \: \dfrac{6}{4} } \\ [/tex]

[tex] \longmapsto \: \: \sf{Mechanical \: Advantage \: = \: \dfrac{3}{2} } \\ [/tex]

[tex] \longmapsto \:\textbf{ \textsf{Mechanical Advantage = 1.5}} \\ [/tex]

Hence :-

[tex] \underline {\rule {180pt} {4pt}} [/tex]

they have oscillating electric and magnetic fields

Answer: The panel of solar cells transforms solar or sunlight energy into electrical energy.

Explanation:

The panels take the visible light waves emitted from the sun and convert them into electricity.

Answer:

sunlight or solar it absorb sun energy

[tex]\tt \dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}\\\\V_2=\dfrac{P_1V_1T_2}{P_2T_1}=\dfrac{P_1V_12T_1}{2P_1T_1}=V_1[/tex]

Some natural hazards are preceded by geologic activities that allow for reliable predictions; other natural hazards occur suddenly, with no notice, and are not yet predictable.

There are some disasters that can be predicted like tornadoes, tsunamis etc.. But some hazards like earthquake cannot be predicted. Still the technology has not developed so much that it could predict earthquakes...~

Answer:

True

Explanation:

Answer:

true

Explanation:

Sound travels faster in water compared with air because water particles are packed in more densely.

Answer:

In short, a force applied to an object at rest causes it to accelerate in the direction of the force.

Explanation:

Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e. to change its velocity, at a constant rate.

Answer:

As the force acting upon an object is increased, the acceleration of the object is increased.

Explanation:

The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.

According to Jean Piaget, unrealistic idealism often occurs in adolescence as a result of egocentrism. The inability to distinguish between self and others is referred to as egocentrism.

The inability to distinguish between self and others is referred to as egocentrism. It is, more precisely, the incapacity to effectively assume or comprehend any viewpoint other than one's own.

Egocentrism may be present in every stage of life, including childhood, adolescence, and maturity.

Hence option B is correct. According to Jean Piaget, unrealistic idealism often occurs in adolescence as a result of egocentrism.

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Answer:

got it right⬇️✅

Answer:

Social cost is the answer

:D let's hope that helped

Explanation:

In order to properly configure the smart light bulbs, buyers should read the installation and configuration manual before connecting or using them to avoid possible damage due to improper handling.

The user manual is a tool that is usually included when we buy a product. This manual includes all the characteristics of the object that we have purchased and the recommendations and specifications for correct use and maintenance to prolong its useful life.

According to the above, what the common buyer should do to prevent their bulbs from being damaged and to be able to configure them properly is to read the user manual.

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The given statement is true. People who have color vision deficiency typically lack one or more of the three cones that are sensitive to a particular wavelength.

The incapacity to determine the exact shades of color is known as color vision insufficiency. This optical disorder is also referred to as "color blindness," however only a few people are actually color blind.

The sensitivity of color-blind people towards a particular wavelength is high. They are more sensitive to a particular wavelength.

So People who have color vision deficiency typically lack one or more of the three cones that are sensitive to a particular wavelength.

Hence the statement is true.

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Answer:

c is the right answer to this

Answer:

It is Force

Explanation:

A Force is a push or pull upon an object resulting from the objects interaction with another object.

Answer: hope it helps you....