I need help with this plz

Answer:

Or between hydrogen and carbon (two atoms with very similar electronegativities) the bond energy is about 98 kcal. The larger the bond energy, the higher the amount of external energy it will take to pull the atoms apart, and thus the stronger the force holding the atoms together.

Explanation:

Plz mark brainliest thanks

Answer:

CHEMICAL ENERGY

Explanation:

Energy, Molecules and Chemical Reactions. Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.

Answer:

-0.0789 m

Explanation:

Recall that the y-component comes associated with the sin(18.4) through the following trigonometric relationship:

y = 0.250 sin(-18.4) ≈ -0.0789 m

Notice it is negative since it is below the x-axis.

Answer: When quantities have the same relative size. In other words they have the same ratio corresponding in size or amount to something else.

Explanation: Example: "A rope's length and weight are in proportion."

Example: "The punishment should be proportional to the crime"

Answer:

F = 120 N

Explanation:

Given that,

The mass of a runner, m = 60 kg

Acceleration of the runner, a = 2 m/s²

We need to find the force provided from her legs. The formula for force is given by :

F = ma

Substitute all the values,

F = 60 kg × 2 m/s²

= 120 N

So, the required force is equal to 120 N.

Given:

Mass,

Acceleration,

As we know that,

→ [tex]Force = Mass\times Acceleration[/tex]

or,

→ [tex]F = ma[/tex]

then,

      [tex]= 60\times 2.0[/tex]

      [tex]= 120\ N[/tex]

Thus the above answer is right.

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Answer:

One of the best examples of constructive interference that may be observed in our day to day life is two speakers playing same music while facing each other. At this time, music will appear louder and powerful as compared to music played by single speaker.

Explanation:

Please mark me as Brilliant

Answer:

35520

Explanation:

592 times 60=35520

Answer:

224.80kg

Explanation:

i just used like a calculator that can figure out the weight of someone on Jupiter i hope its right-

Answer:

79.20 joule

Explanation:

1.

A 0.10kg stone is thrown from the edge of an ocean cliff with an initial speed of 21m/s. When it strikes the water below, it is traveling at 45m/s. What is the change in kinetic energy of the stone?

ΔEk = m/2*(V2^2-V1^2) = 0.05*(45^2-21^2) = 79.20 joule

The change in the kinetic energy of the stone is 81.25 J.

The given parameters;

The initial kinetic energy of the stone is calculated as follows;

K.E = ¹/₂mu²

K.E₁ = ¹/₂ x 0.1 x 20²

K.E₁ = 20 J

The final kinetic energy of the stone is calculated as follows;

K.E₂ = ¹/₂ x 0.1 x 45²

K.E₂ = 101.25 J

The change in the kinetic energy of the stone is calculated as follows;

ΔK.E = K.E₂ - K.E₁

ΔK.E = 101.25 J  -  20 J

ΔK.E = 81.25 J

Thus, the change in the kinetic energy of the stone is 81.25 J.

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A. The fossils cam from the same organism

Hope this helps!

The fossils came from the same organism. This conclusion is most reasonable.

A fossil is an item that has survived in the Earth's crust as a remnant, impression, or trace of an extinct animal or plant. The main repository for knowledge regarding the evolution of life on Earth is the complex of information preserved in fossils found all across the world.

Fossils of dinosaurs discovered in Alberta, Canada. Only a small percentage of extinct species have been preserved as fossils, and often only those with a sturdy skeleton are capable of doing so. A calcareous skeleton or shell is present in the majority of major groups of invertebrate creatures (e.g., corals, mollusks, brachiopods, bryozoans). Other types have silicon dioxide or calcium phosphate shells (both of which are found in the bones of vertebrates).

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Answer:

I do believe the answer is D. prism

Answer:

Explanation:

either all of the above or D <3

Answer:

It will turn back into a solid but it will take some time.

Explanation:

Answer is:

A:The movement of large land areas across earth's surface

Answer:

Some protists move using cilia and flagella. Fungi do not move but have fast growing hyphae.

Explanation:

trust me

Answer:

D) conduction

Explanation:

Fick's law of diffusion states that the rate of diffusion is directly proportional to the concentration gradient, and the surface area and inversely proportional to the membrane's thickness

The differences expected are;

The reasons why the above expected differences are correct are as follows:

Diffusion that is time dependent is given by the following equation based on the fluctuation-dissipation theorem;

D(t) = μ·[tex]k_B[/tex]·T·(1 - [tex]e^{-t/(m\cdot \mu )}[/tex])

Where;

μ = The particle mobility

[tex]k_B[/tex] = Boltzmann's constant

T = The temperature in Kelvin

m = The mass of the particle

t = The time

Therefore, the rate of diffusion is directly proportional to the  temperature, given that the substances have the same molecular masses

The differences to expect if, at the same time you place a yellow and blue food coloring in both hot and cold water is that;

The rate of diffusion of the food coloring will be faster when placed in the hot water, due to the higher kinetic energy (moving faster) of the liquid particles to which the coloring is added, such that the differences are as follows;

Diffusion of the coloring is more evenly spread and at a faster rate when either the yellow or blue food coloring is placed in HOT water than when placed in COLD water

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I found this formula in an old book.

E = m · c²

It may be useful.

c = 3 x 10⁸ m/s

c²  = 9 x 10¹⁶ m²/s²

4 x 10¹⁶ J = m · (9 x 10¹⁶ m²/s² )

m = (4 x 10¹⁶ J) / (9 x 10¹⁶ m²/s²)

m  =  0.44 kg (choice-B)  

Answer:

Explanation:

When the object falling attains terminal velocity , net force on it becomes zero. That means drag force becomes equal and opposite to its weight.

So drag force = mg

where m is mass of falling body and g is acceleration due to gravity .

The drag force is constant . It is doing work against the weight of falling body . Object is falling v m /s . That means drag force is doing work per second as follows

Work done per second = force x displacement per second

= mg x v

So

Power of drag force = mgv.

Pd = mgv.

Answer:

its 120 all u have to do is plus 100 and 20

Answer:

light in the UV range.

Explanation:

Noble gases and halogens can combine to form lasers called Excimer, for this to happen the noble gas must be ionized with a high voltage discharge, thus forming a molecule of the type

      noble gas (X) + halogen (H) → XH

This molecule is highly unstable and decomposes within a few nanoseconds, emitting light in the UV range.

The light from one gas is different from light of other gases such that they are

highly unstable.

Noble gases are also referred to as inert gases which form lasers under

some conditions.The lasers are formed when the noble gas undergo

ionization with a high voltage discharge.

The high instability and high decomposition rate which occurs within a few

nanoseconds emits light in the UV range thereby giving rise to them being

used as laser mediums.

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Answer:

c

Explanation:

Answer:

$40

Explanation:

10 × 4 = 40

or

10 + 10 + 10 + 10 = 40

Answer:

C

Explanation:

Answer:6

Explanation:$’n

Answer:

True.

Explanation:

Newton's Second Law of Motion states that the acceleration of a physical object is directly proportional to the net force acting on the physical object and inversely proportional to its mass.

Mathematically, it is given by the formula;

Force = mass * acceleration

[tex] F = ma[/tex]

Centripetal acceleration is given by the formula;

[tex] Acceleration, a = \frac {v^{2}}{r}[/tex]

Where;

v is the velocity.

r is the radius.

The equation for centripetal force can be derived by substituting the equation for centripetal acceleration into Newton’s second law.

Let centripetal force be Fc

Fc = ma

Substituting the value of "a" into the above formula;

[tex] Fc = m \frac {v^{2}}{r} [/tex]

[tex] Fc = \frac {mv^{2}}{r} [/tex]

The purpose of the antireflective coating on the glass layer of a solar

the cell is that It allows more solar energy to be absorbed, therefore the correct answer is option D.

The energy emitted by the Sun as a form of thermal electromagnetic radiation is known as solar energy.

This solar energy is produced by nuclear fusion in the center of the Sun. Solar energy is a form of renewable source of energy.

As given in the problem statement we have to find out the best statement from the given options which describes the purpose of the antireflective coating on the glass layer of a solar cell.

In order to increase the amount of solar energy that can be absorbed, a solar cell's glass layer has an anti-reflective coating, therefore the correct answer is option D.

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Answer:

D

Explanation:

Answer:

d.

Explanation:

Since the dart's initial speed v at angle has both vertical and horizontal components v₀sinθ and v₀cosθ respectively, the vertical component of the speed continues to decrease until it hits the target. It's displacement ,s is gotten from

s = y - y₀ = (v₀sinθ)t - 1/2gt² where y₀ = 0 m

y - 0 = (v₀sinθ)t - 1/2gt²

y = (v₀sinθ)t - 1/2gt²

which is the parabolic equation for the displacement of the dart.

Note that the horizontal component of the dart's velocity does not change during its motion.

Since the target falls vertically, with initial velocity u = 0 (since it was stationary before the string cut), it's displacement ,s' is gotten from

s' = y - y₀' = ut - 1/2gt² where y₀' = initial height of target above the ground

= (0 m/s)t - 1/2gt²

= 0 - 1/2gt²

y - y₀' = - 1/2gt²

y = y₀' - 1/2gt²

which is the parabolic equation for the displacement of the target.

The equation for both the displacement of the dart and the target can only be gotten if we considered vertical motion. So, the displacement component of both the dart and target are both vertical.

So, the answer is d.

Answer: 3.0 m/s

Explanation: