Helppppppppppppppp please and explain!

Answer:

5 Muscular and strength

Explanation:

energy=100×1.5=150 joules

A substance with a pH value of 2.3 would be classified as a strong acid. Option A is correct.

pH stands for "potential hydrogen," and it is a measure of the acidity or basicity (alkalinity) of a solution. The pH scale ranges from 0 to 14, with 7 being neutral (neither acidic nor basic). Solutions with a pH less than 7 are considered acidic, and solutions with a pH greater than 7 are considered basic.

Here,
The pH scale is used to measure the acidity or basicity of a solution. Values on the pH scale range from 0 to 14. Solutions with a pH value less than 7 are considered acidic, and solutions with a pH value greater than 7 are considered basic. The lower the pH value, the more acidic the solution.

A pH value of 2.3 indicates that the solution is strongly acidic, as it is well below the neutral value of 7.

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Answer:

Image result for what is the force the when does when Gravity pushes you​

The important thing to remember is that gravity is neither a push nor a pull; what we interpret as a “force” or the acceleration due to gravity is actually the curvature of space and time — the path itself stoops downward.

Explanation:

Image result for what is the force the when does when Gravity pushes you​

The important thing to remember is that gravity is neither a push nor a pull; what we interpret as a “force” or the acceleration due to gravity is actually the curvature of space and time — the path itself stoops downward.

Answer:

It is called gravitational force.

Explanation:

[tex]{ \boxed{ \rm{F = \frac{GM_{a} m _{a}}{ {r}^{2} } }}}[/tex]

→ Assume you are in space and you have a mass of ma, and you are r metres from the Earth of mass Ma. The force F will be experienced and you will tend to be pulled towards the Earth when you are in its gravitational field.

Answer:

true..............yh

Answer:

electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies.

Explanation:

brainliest me

Answer:

The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.

ok write it

Answer:

ima be honest i don't know the answer im just doing this so brainly can leave me alone sorry lol

Explanation:

blah blah blah blah blah blah blah yada yada yada i answerd this question i guess

Answer:

The time taken is 84 seconds, please give the brainliest award would be much appreciated.

Answer:

B

Explanation:

490km/h

490km/1h

490000/3600

note: 1h= (60×60)=3600

hope it help??

1. 5 WBC's per cubic millimeter.

3. 50 to 80 mg/100 mL

4. 15 to 60 milligrams per deciliter (mg/dL) or 0.15 to 0.6 milligrams per milliliter (mg/mL)

If a test were to be performed here are normal results:

Normal values typically range as follows:

Pressure: 70 to 180 mm H2O

Appearance: clear, colorless

CSF total protein: 15 to 60 mg/100 mL

Gamma globulin: 3% to 12% of the total protein

CSF glucose: 50 to 80 mg/100 mL (or greater than two thirds of blood sugar level)

CSF cell count: 0 to 5 white blood cells (all mononuclear), and no red blood cells

Chloride: 110 to 125 mEq/L

(Source: https://medlineplus.gov/ency/article/003428.htm)

Answer:

tcucugxojfjgfojcigxuogoudyifodtufukdutfuocyjxuogu

Answer:

W2 = W1

Explanation:

work is independent of the path taken between the points.

Answer:

hellooo

Explanation:

i think ummm

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Answer:

???

Explanation:

Answers:

A dog breed can be made smaller by breeding together only the smallest dogs.

Identical twins are more likely to be about the same height than non-identical twins,

Explanation:

By using Newton law of gravitation, the weight of the object when it moves 450 km above the center of the planet is 20N

Given that the weight of an object is 180 N at a distance of 150 km above a planet's center.

F = GMm/[tex]r^{2}[/tex]

F = mg = 180N

r = 150

When it moves 450 km above the center of the planet, G, M and m will be constant. only r will vary.

180 = GMm/[tex]150^{2}[/tex]

Make GMm the subject of the formula

GMm = 180 x 22500

GMm = 4050000

As it moves 450 km above the center of the planet, Its weight will be

F = GMm/[tex]r^{2}[/tex]

Substitute all the values and parameters

F = 4050000/[tex]450^{2}[/tex]

F = 20 N

Therefore, the weight of the object When it moves 450 km above the center of the planet is 20 Newtons

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If David was driving at a velocity of 5 m/s and accelerates to a velocity of 8 m/s in 4 seconds, David's acceleration is 0.75 [tex]m/s^2[/tex].

Given the following data:

To find David's acceleration:

Acceleration is calculated by subtracting the initial velocity from the final velocity and dividing by the time.

Mathematically, acceleration is given by the formula;

[tex]Acceleration = \frac{V_f\; - \;V_i}{t}[/tex]

Where:

Substituting the given parameters into the formula, we have;

[tex]Acceleration = \frac{8\; - \;5}{4}\\\\Acceleration = \frac{3}{4}[/tex]

Acceleration = 0.75 [tex]m/s^2[/tex].

Therefore, the David's acceleration is 0.75 [tex]m/s^2[/tex].

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Answer:

c. 7 m/s

Explanation:

3500 m / 500 s = 7 m/s

Answer:

The ocean plays a key role in this vital cycle of water. The ocean holds 97% of the total water on the planet; 78% of global precipitation occurs over the ocean, and it is the source of 86% of global evaporation. ... Water evaporates from the surface of the ocean, mostly in warm, cloud-free subtropical seas.

Explanation:

Hope this helps.

The Planck model for the black body and the emission spectrum of the atoms allows to find the results for the peaks in the spectrum of stars is:

The stars are very hot celestial bodies by nuclear fusion processes, in a good approximation they approximate an ideal body that absorbs or emits all the radiation called black body.

A black body is a cavity in thermal equilibrium at a dated temperature with a small hole, this hole is the so-called black body and its emission spectrum was explained by Planck, with the assumption that the energy is

             E = h νν

Where h is Planck's constant and ν is the frequency of the radiation. In the attachment we see the emission spectrum of a black body for various temperatures.

If in the material under study we have in addition the emission characteristics of some elements, it is energy appears as peaks in the emission spectrum and as black bands o valley in an absorption spectrum, therefore the existence of the structure is in a test of the existence of chemical elements within the stars.

In the attachment we can see the spectrum of a dwarf star where we can appreciate the spectrum of the black body and the emission and absorption lines of the chemical elements inside the star.

In conclusion using the Planck model for the black body and the emission spectra of the atoms we can find the results for the peaks in the spectrum of stars is:

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Answer:

4 filter funnel 7 round bottom flask sorry but that is all I know

Answer:

1. Shield volcano

Runny,basaltic magma with low silica and low gas content. Has a broad,low profile.

2. Cinder cone volcano

Thick viscosity andesitic magma with high silica content and high gas content. Rapidly solidifying lava forms high,steep-sided cones.

3. Composite volcano

Medium viscosity rhyolitic magma with medium silicon content and medium gas content.Have flatter domes called cones.

Explanation:

Hope it helps you..

Your welcome in advance..(◍•ᴗ•◍)

Answer:

C. Acetylcholine; dopamine

Acetylcholine is to Alzheimer's disease dopamine as is to Parkinson's disease. That is option C.

The neurological disorders are does diseases that affect the nervous system of an individual.

Examples of the neurological disorder include:

Therefore, Acetylcholine is to Alzheimer's disease dopamine as is to Parkinson's disease.

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Explanation:

given :

m = 20 g

sh = 0.39 J/g°C

∆T = 40-20 = 20°C

Find the Energy!

solution :

E =m. sh. ∆T

= 20 × 0.39 × 20

= 156 J

So, energy required is

Energy = mass*sh*∆T

Energy = 20g*0.39j/g°c*20°

Energy = 156joule✅

~Physics#1

Explanation:

We know

Answer:

[tex]1 \\ 0.5 \times 500 \times 20 \times 20 \\ \ 2 \\ 0.5 \times 0.6 \times 100 \times 100 \\ 3 \\ 1000 \times 0.5 \times 10 \times 10 \\ 1000 \times 0.5 \times 20 \times 20 \\ 1000 \times 0.5 \times 30 \times 30 \\ 4 \\ 0.5 \times 40000 \times 30 \times 30 \\ 5 \\ \sqrt{ \frac{2}{0.1 \times 0.5} } [/tex]

Answer:

4 Newton

Explanation:

because you minus 1 Newton from 5 newton

The net force on the box is equal to 4N. Therefore, option (1) is correct.

The net force can be described as the vector sum of forces acting on a particle or object. The net force can be defined as a single force showing same the effect of the original forces on the particle's motion. Net force gives the same acceleration as all those actual forces together.

The net force becomes the resultant force. It has the same effect on the rotational motion as all actual forces taken together by the object. Force is a vector quantity as it has a magnitude and a direction.

In the given problem, the applied force is in the opposite direction of the frictional force so we can find the net force by subtracting these two forces.

Given, the applied force to push the box = 5N

The frictional force on the box, = 1 N

The net force on the box = 5N + (-1N) = 4N

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Answer:

A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. ... Unlike sea anemones, corals secrete hard carbonate exoskeletons that support and protect the coral.

Coastal oceans are commonly defined as the areas from the shoreline to the outer edge of the continental margin. They connect the continents to the open ocean and serve as a link for transporting organic and inorganic, natural and anthropogenic material from land to sea.

Coastal oceans in tropical areas have similar characteristics to their temperate counterparts. ... Coral reefs are biologically diverse and rich habitats that occur in relatively nutrient-poor environments along coastlines. Areas that have too many nutrients often harbor too much algal growth to sustain coral growth.,

Explanation:

Answer:

50 degrees

Explanation:

complimentary angles will give you the same range

Answer:

Red supergiant.

Explanation:

When our sun is going to become a red giant, it's going to be 256 times larger than itself now.