Answer fast, please.

Answer:

1/24

Explanation:

1/4 * 1/3 * 1/2 = 1/24

Answer:

1/24

Explanation:

Answer:

B) A star composed of hydrogen and helium

Explanation:

This star is called the sun and is made up of about 70% hydrogen and 28% helium.\

Answer:

15 N

Explanation:

Answer:

The activation energy of a chemical reaction is the energy require to form the activated complex and the activated complex then converted to product. The activation energy is always positive for both endothermic and exothermic reactions.

Explanation:

pls if im worng add a star pls

An energy-efficient electric fan converts a large portion of the electrical energy that enters it into kinetic energy of the fan blades. Hence, option (B) is correct.

Efficiency is the ability to achieve something or get a desired outcome without wasting resources, time, money, energy, or effort. In a broader sense, it is the capacity to carry out tasks effectively and efficiently.

It denotes the degree of performance that requires the fewest inputs to provide the greatest amount of output in more mathematical or scientific words.

It frequently particularly refers to the ability of a particular application of effort to deliver a particular output with the least amount of waste, expense, or superfluous work. Efficiency covers a wide range of inputs and outputs across numerous disciplines and sectors.

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Answer:

nephron

Explanation:

I can't really explain this one.

Answer:

nephron

Explanation:

thats what it is

Explanation:

PE = mgz = 200 * 9.81 *1000 = 1962 KJ

A 200-kg boulder is 1000-m above the ground. 1962 KJ is its potential energy.

The term potential energy is defined as the stored energy that depends upon the relative position of various parts of a system. Because it has a potential to do work when released it is called as potential energy.

A spring has more potential energy when it is stretched. Any object that is stretched from its resting position has stored energy, so it is called potential energy.

The SI unit of electric potential is represented by volt (V), and it can also be written as Joule per Coulomb. The unit of potential energy is joules.

Potential energy = mgz

= 200 × 9.81 × 1000

= 1962 KJ

Thus, A 200-kg boulder is 1000-m above the ground.  1962 KJ is its potential energy.

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Answer: A

Potential energy = 14.7 J

Explanation:

Given that the

Mass M = 5 kg

Height h = 0.3 m

Let us take acceleration due to gravity g = 9.81 m/s^2

Potential energy = mgh

Substitute all the parameters into the formula above

P.E = 5 × 9.81 × 0.3

P.E = 14.715 J

P.E = 14.7 J approximately

The correct option is therefore A

Answer:

C sedimentary rocks is the answer.

Explanation:

Answer:

C. sedimentary rocks

Explanation:

Fossils are the preserved remains of animal and plant life which are mostly found embedded in sedimentary rocks. Of the sedimentary rocks, most fossils occur in shale, limestone and sandstone. Earth contains three types of rocks which are metamorphic, igneous and sedimentary.

Answer:

Greater

Explanation:

When you go deeper in water, the presure increases, the deeper you go, so it would be greater in a well then the surfce of a pond. Hope this helps!

Answer:

B. there would be a global rise in temperatures

Hence, global warming

Explanation:

hope this helped! :D

Answer:

v = 0.74 m / s

Explanation:

We can solve this exercise using the conservation of the moment

initial instant. Before the crash

       p₀ = m v

where m is 2.50 kg and its velocity v₀ = 15 m / s

final moment. After catching the dough

      [tex]p_{f}[/tex] = (m + M) v

As the system is made up of the mass and the person, all the forces during the impact are internal, therefore the moment is conserved

       p₀ = p_{f}

       m v₀ = (m + M) v

       v = m / (m + M)   v₀

we calculate

     v = 2.5 / (2.5 + 48) 15

     v = 0.74 m / s

Answer:

B. Individuals pass on their best traits to their offspring.

Explanation:

because genes are always passed from parents to offspring.

The best summary of the process of natural selection is Individuals pass on their best traits to their offspring. Hence, the correct option is B.

The theory of natural selection gives the mechanism of evolution. It defines the method of different survival and reproduction of individuals due to differences in phenotype.

The theory of natural selection was proposed by Charles Darwin as a way of adaptation and speciation. The variations occur in organisms by random mutations occurring in the genome of individual organisms and this change in mutations may inherit in offspring.

Organisms that are more adapted to the environment are more likely to survive and pass on the genes to future generations. This process cause changes to the generations and diverged over time.

The organisms produce more offspring that are able to survive in the environment. The four factors of natural selection are Variations, Inheritance, Selection, and time.

Thus, the best summary of the process of natural selection is individuals pass on their best traits to their offspring. Hence, the ideal solution is option B.

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Answer:

Density is independent of the

amount of the sample. (D)

Explanation:

Because density is an intrinsic property of matter.

hope it helps!

Answer:

D. Density is independent of the

amount of the sample.

Explanation:

Density is expressed in units of mass per volume, such as g/mL or kg/m3. Because the density of a substance does not depend on the amount of substance present, density is an “intensive property”. To measure the density of a sample of material, both the mass and volume of the sample must be determined.

Hope this Helps, Pls mark as the Brainliest

Answer: D

All the particles must be uncharged

Explanation:

If all the particles are positively charged, then there will be force of repulsion between them which will give different directions away from each other. The same is applicable if they are all negatively charged.

If the particles are positively and negatively charged, their will be force of attraction between them which will give different directions towards each other.

For all to be experiencing forces in the same direction, We can conclude that

All the particles must be uncharged.

Answer:

This picture represents the electric field diagram between two particles with static charges.

Do the two particles have the same charge?

✔ no

If the particles are free to move, what affect will the two particles have on each other?

✔ They will attract each other.

If a third particle was added to this field with a positive charge, what would it be attracted to?

✔ B

If an uncharged particle was placed between A and B, which way would it move?

✔ neither direction

Explanation:

Answer:

Visible Spectrum is the type of electromagnetic wave with a wave length between 700 and 400 billionths of a meter.

Answer:

12.0 m/s²

Explanation:

Newton's second law:

F = ma

Solving for acceleration:

a = F/m

If force is doubled and mass is tripled:

a' = (2F)/(3m)

a' = ⅔ (F/m)

a' = ⅔ (18.0 m/s²)

a' = 12.0 m/s²

The new value of acceleration of object is 12 m/s².

Given data:

The magnitude of acceleration of object is, [tex]a =18 \;\rm m/s^{2}[/tex].

Let F be initial net force and m be the initial mass. Then as per the problem, the new values of each are,

F' = 2F

m' = 3m

Apply the Newton's Second law, which says that the product of mass and acceleration of object given net force. Then,

F = ma

F = m(18)

F/m = 18 .................................................(1)

Now, for new value of net force,

F' = m'a'

2F = (3m) a'

2F/3m = a'

a' =2/3× (18)                                                   (From equation 1)

a' = 12 m/s²

Thus, we can conclude that the new value of acceleration of object is 12 m/s².

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It is actually B. Promoter 2.

Your welcome

Say safe

Answer:

1.) Kinetic energy

2.) K.E = 7500000000 J

Explanation: Given that a 1500 Kg automobile is traveling at a velocity of 100 m/s. 

An object possesses maximum potential energy when it is at rest

And maximum kinetic energy on motion. Since the automobile is travelling with a speed of 100 m/s, its energy is kinetic.

The amount of energy possessed, will be achieved by using formula

K.E = 1/2MV^2

Where

M = 1500kg

To convert it to g, multiply it by 1000

M = 1500 × 1000 = 1500000

V = 100 m/s

K.E = 1/2 × 1500000 × 100^2

K.E = 0.5 × 1500000 × 10000

K.E = 7500000000 J

Answer:

crust, and upper mantle

Explanation:

i had a question like this

earth's lithosphere includes  these things

Answer:

Robotic arms used aboard the ISS are now used in delicate surgeries on Earth.

Explanation:

The ISS allows users to address hardware product development gaps, advanced manufacturing, and emerging technology proliferation. Microgravity-enabled material production capabilities and advanced manufacturing facilities are demonstrating scientific and commercial merit for Earth benefit

Answer:

a

Explanation:

When an object moves it acquires energy of motion. An thing that is in motion gains energy of motion, often known as kinetic energy. The energy an item possesses as a result of its motion is known as kinetic energy.

The item accumulates kinetic energy when it moves faster or at a specific velocity. The mass and speed of the item affect the quantity of kinetic energy.

Kinetic energy is calculated as KE = 0.5 * mass * velocity * 2. Because of the direct connection between an item's speed and the energy required to move it, the kinetic energy of an object grows exponentially as its velocity rises.

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The angle of refraction is 3

The correct option is 3.

The angle formed at the point of incidence between the incident ray and the normal is called the angle of incidence. The angle formed between the refracted ray and the normal is called the angle of refraction. The angle of Incidence and Angle of Refraction.

As in reflection, we measure the angles from the normal to the surface, at the point of contact. The constants n are the indices of refraction for the corresponding media.

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Answer:

The resistance of the lamp is 960 ohms.

Explanation:

We have,

Voltage of electric lamp is 240 V and power is 60 W.

It is required to find the resistance of the lamp.

The power of an electrical device is given by :

[tex]P=\dfrac{V^2}{R}[/tex]

R is resistance

[tex]R=\dfrac{V^2}{P}\\\\R=\dfrac{(240)^2}{60}\\\\R=960\ \Omega[/tex]

So, the resistance of the lamp is 960 ohms.

Answer: A gland is an organ which produces and releases substances that perform a specific function in the body.

Explanation: A gland is an organ which produces and releases substances that perform a specific function in the body. There are two types of gland. Endocrine glands are ductless glands and release the substances that they make (hormones) directly into the bloodstream.

Answer:

A gland is an organ which produces and releases substances that perform a specific function in the body. There are two types of gland. Endocrine glands are ductless glands and release the substances that they make (hormones) directlyinto the bloodstream.

Explanation:

The correct order of increasing the intermolecular force of attraction for the three most common states of matter is C) gas - liquid - solid.

An intermolecular force is a force of attraction or repulsion that exists between molecules or atoms within a substance.

Here,
In the gaseous state, the intermolecular forces are weak, and the molecules are far apart and move freely in all directions. In the liquid state, the intermolecular forces are stronger, and the molecules are closer together, but still able to move past each other. In the solid state, the intermolecular forces are the strongest, and the molecules are tightly packed together in a fixed arrangement, which results in a definite shape and volume.

Therefore, the correct order of increasing the intermolecular force of attraction for the three most common states of matter is gas, liquid, and solid.

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Answer:

SI unit

1) SI unit does not depend on other.

2) they have their own identity.

Derived unit

1) They depend upon other or fundamental unit.

2) they don't have their own identity.

Answer:

D all of these gufjbihbuxhbi