In laboratorio, versi in un tubo a U acqua da una estremità e olio dall'altra. Le densità dell'olio e dell'acqua sono, rispettivamente, 890 kg/m^3 e 1010 kg/m^3. L'altezza della colonna d'acqua è 18 cm. ▶ A che altezza arriva l'olio nell'altro ramo del tubo? ▶ Quanto vale la differenza fra i livelli superiori dell'acqua e dell'olio nei due rami?

Answer:

Answer:

to prevent the government from abusing people's rights

Explanation:

Bill of rights is made up of the first ten amendments to the United States Constitution.

The bill of right include Freedom of religion, speech, press, assembly and petition.

The Right to keep and bear arms in order to maintain a well regulated militia.

The Right to due process of law, freedom from self-incrimination, double jeopardy.

The purpose of this bill is to protect the rights of citizens against infringement from the government,public officials and private citizens.

Answer: C. Galactic disk

Explanation:

The part of the Milky Way which allows the determination of it rotational direction is known as the Galactic disk. This disc are shaped because they contain gases which are rich and dynamically young. It is also a part of a group of a galaxies disc is a component of disc galaxies, known as spiral galaxies and lenticular galaxies.

Answer:

Galactic disk

Explanation:

Galactic disc's are composed mostly of the galaxy's stars and a gaseous component mostly composed of cool gas and dust. The stellar population of galactic discs tend to exhibit very little random motion with most of its stars undergoing nearly circular orbits about the galactic center. This circular orbit maintains the galaxy's rotation momentum.

Answer:

NO

Explanation:

It is just impossible to know if someone is staring at you while they are standing behind you. UNLESS they turned around OR was able to see them though a mirror of some sort. :)

Answer:

The answer is erosion

Explanation:

I did this before

Let's see what these words mean:

Vertebrae means a backbone as well as an internal skeleton

Hair is the body's way of creating a defense for the skin (and additionally to look bigger)

Tetrapod is a four footed animal

Amniotic egg means that the embryo develops inside an egg.

Biped means using two feet to walk.

Amphibians, lemurs, and humans both have vertebrae and tetrapod. While humans do not walk on four legs it is said that humans are classified as that group

Answer:

A small, lemur-like creature may have been an early ancestor of monkeys, apes, and humans.

Explanation:

Answer:

Actions that underlie mathematical rules, patterns or probability distributions.

For example how fast something falls at any given point or time.

More complex actions, such as human decision making in single individuals would be way too complicated to describe in physical terms.

But note that there can be physical models of such things as traffic when we can assume statistical knowledge of behavior.

Also physical models are used to plan such things as emergency exits in big stadiums, because many thousands of people can be described as particles flowing under a given pressure.

Every time we can gain good statistical knowledge and can therefore see patterns and rules in action, we can build theoretical models to make predictions and simulations (and games btw)

Since it's fair to say that mathematics is the science of patterns, it is plausible that physical descriptions often come in mathematical formulations, so that it can be understand as an efficient language of physics.

Neighboring disciplines like chemistry relay on physical theories to build on them,and then add shortcuts to fit their needs and interests, generating an own language for their field of study. But physicists may refer to them as anadd-on to physics.

Physics can basically explain all actions wich you can express in numbers.

But note that on a fundamental level physics describes 'how' things work, not necessarily 'why' they do it this way. The source of the basic and most fundamental physical constants and rules remains a mystery till this day.But of course there are theories on that as well, wich mostly can neither be proved or falsified.

The text is my own work and based of my general knowledge and quintessence of lectures on physics and other fields I attended.

(I would really appreciate the brainliest)

Answer:

[tex]b=\frac{1}{2}[/tex] and [tex]a=-\frac{1}{2}[/tex]

Explanation:

The velocity longitudinal waves depends on the bulk modulus and the density. It is given by the formula:

[tex]V=\sqrt{\frac{\beta }{\rho} }[/tex]

Where V is the velocity , β is the bulk modulus and ρ is the density.

[tex]V=\sqrt{\frac{\beta }{\rho} }\\V=\frac{\beta^\frac{1}{2} }{\rho^\frac{1}{2} } \\V=\beta^\frac{1}{2} \rho^-\frac{1}{2}[/tex]

Therefore comparing with [tex]V =E ^b d ^a[/tex], where V, E and d are the velocity longitudinal waves, bulk modulus of elasticity and density, the values of b and a can be gotten.

Therefore, [tex]b=\frac{1}{2}[/tex] and [tex]a=-\frac{1}{2}[/tex]

Answer:

Mechanical energy is the total energy of the body is made up of scientific energy and potential synergy, these two can be converted into one another without needing help.

The most determining factor of kinetic anergy is speed since it is squared

Explanation:

Mechanical energy is the total energy of the body is made up of scientific energy and potential synergy, these two can be converted into one another without needing help. Kinetic energy is the energy of movement, increasing the speed of the body increases the kinetic energy.

The energy powers an energy from the system configuration when changing to a lower energy configuration this is converted into mechanical energy.

The most determining factor of kinetic anergy is speed since it is squared

Answer:

The Answer is B

Explanation: The loudness is shared among the listener and source

Answer : The correct option is, (B)

Explanation :

There is a direct relation between the loudness of sound and the intensity of sound.

[tex]L=10 log \frac{I}{Ia} }[/tex]  ..........(1)

where,

L = loudness of sound

I = intensity of sound

= intensity of reference

From this we conclude that the loudness is directly proportional to the intensity of the sound.

There is an indirect relation between the intensity of sound and the distance of the listener from the source.

[tex]\frac{I_1 }{I_2 } = (\frac{d_1}{d_2} )^{2}[/tex]   ...................(2)

From this we conclude that the intensity of sound is inversely proportional to the square of the distance of the listener from the source.

From equation (1) and (2) we conclude that the loudness of sound is inversely proportional to the square of the distance of the listener from the source.

Hence, the correct option is, (B)

Answer:

1/5 km/min

Explanation:

the formula for velocity is distance/time

so if i plug in the distance and time i get 5/25 or 1/5

Hope this helps!

Answer:

Enter an equation of a chemical reaction and click 'Balance'. The answer will appear below

Always use the upper case for the first character in the element name and the lower case for the second character.

To enter an electron into a chemical equation use {-} or e

To enter an ion specify charge after the compound in curly brackets: {+3} or {3+} or {3}. Example: Fe{3+} + I{-} =...

Substitute immutable groups in chemical compounds to avoid ambiguity. For instance equation C6H5C2H5 + O2 = C6H5OH + CO2...

Explanation:

Answer:

PLATO!!!!! THESE ARE RIGHT!!! OTHERS ARE NOT CORRECT. I JUST GOT IT RIGHT ON PLATO

Explanation:

1. federal water pollution control act

2.nature conservancy

3. clean air act

4. water quality act

5. endangered species preservation act

6. clean water act

7. energy supply and environmental coordination act

8. eastern wilderness act

9. toxic substance act

10. intergovernmental panel on climate change (IPCC).

Answer:

A : 7.8 grams per millilitre

B : 3×10^-2 kilograms/cm^3

Answer:

2.0 × 104 2.0

Answer:

Runoff occurs when there is more water than land can absorb

Answer:

vR= effort distance/ load distance

VR = height / length

VR. = 5/20

VR = 0.25

Answer:the 90% is spent performing other functions

Explanation:

Answer:

Nicolaus Copernicus

-He was a Mathematician

Explanation:

Answer: i dont really get what u are asking but here is what im guessing u mean.

Explanation:Refer to the diagram shown below.

m = 50 g = 0.05 kg, the mass of the ball

A = 6 cm = 0.06 m, the amplitude

The oscillatory motion relative to the equilibrium position is

x(t) = A cos(ωt)

where

x =  displacement at time t

A = amplitude, 0.06 m

ω = circular frequency

Therefore

x(t) = A cos(ωt)

The velocity function is

v(t) = - ωA sin(ωt)

The maximum velocity occurs when sin(ωt) = 1. Because the maximum velocity is 3.2 m/s, therefore

(ω 1/s)*(0.06 m) = (3.2 m/s)

w = 53.33 1/s

Therefore

x(t) = 0.06 cos(53.33t)

v(t) = 3.2 sin(53.33t)

When the spring is compressed by 4.5 cm (0.045 m) from the equilibrium position, then

0.06 cos(53.33t) = -0.045

cos(53.33t) = -0.75

53.33t = cos⁻¹ (-0.75) = 2.4189

t = 0.0454 s

The velocity when t = 0.0454 s is

v = 3.2 sin(53.33*0.0454) = 2.111 m/s

The kinetic energy is

KE = (1/2)*m*v²

    = 0.5*(0.05 kg)*(2.111 m/s)²

    = 0.1114 J

Answer:  0.1114 J

When the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.

Any projectile's instantaneous speed at its maximum height is zero. Because gravity gives the ball the same acceleration on the way up as it does on the way down, the time it takes to reach maximum altitude is the same as the time it takes to return to its launch position.

Because of the -ve acceleration along the vertical direction, velocity decreases until it reaches zero.

The velocity of a projectile is zero at its highest point. A projectile's acceleration is zero at its highest point.

When going up, the acceleration is negative because the speed is decreasing. When going down, the acceleration is negative because it is moving in the opposite direction, down.

Thus, When the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.

To learn more about an acceleration, follow the link;

https://brainly.com/question/12550364

#SPJ2

Answer:

I would say 16m because of the power some brakes have say if you were to be going at 100 miles it would stop in about 3 seconds.

Answer:

2730.304 KJ

Explanation:

 How much heat is required to convert 0.8 kg of ice at  -35°C into steam at 100 C?

Given that:

mass of ice (m) = 0.8 kg = 800 g

Initial temperature ([tex]T_i[/tex]) = -35°C = 238 K

final temperature ([tex]T_n[/tex])= 100°C = 373 K

Specific heat of ice ([tex]S_i[/tex]) = 2.108 J/g.K

Specific heat of water ([tex]S_w[/tex]) = 4.18 J/g.K

Latent heat of fusion ([tex]L_f[/tex]) = 334 J/g.

Latent heat of vaporization ([tex]L_v[/tex]) = 2230 J/g.

[tex]\Delta T=T_n-T_i=373-238=135K[/tex]

Total heat (Q) required to increase the temperature of ice from the initial temperature of 238K to final temperature of 373 K is given by the equation:

[tex]Q=m\Delta TS_i+m\Delta TS_w+mL_f+mL_v\\Q=800(135)*2.108+800(135)*4.18+800*334+800*2230\\Q=227664+451440+267200+1784000=2730304J\\Q=2703.304KJ[/tex]

Answer:

substances will move faster and become warm to the touch.

Explanation:

when the radiation from the sun comes down and hits substances, the substances absorbs the radiation making them warm. the absorbed energy is transformed into heat energy. this heat energy plays an important role in regulating the temperature of the Earths crust, surface waters, and low atmosphere.

Answer:

The organisms Rachel see are all inter dependent on one another to survive in the form of a food chain. This relationship helps the swamp ecosystem thrive.

Explanation:

In this swamp ecosystem, the Sandhill crane relies on the fishes for food, Some of the fishes rely on the algae or the snail for food and the snail also rely on the algae for food. This relationship not only serves to nourish the organism above the food chain but serves a general purpose of controlling the ecosystem. The absence of one or more of these organisms, say the algae can offset the ecosystem in a chain reaction that might go as far as affecting the cranes. Also, the absence of algae feeders can lead to an algae boom which might overpower the oxygen concentration in the pond further killing other organisms in the pond that need oxygen for respiration.

Answer:

compound-complex sentence. two independent clauses, one dependent clause

Answer:

V = IR

I = V/R

= 1.5 / 2

= 0.75 A

Answer:

i believe its True

Explanation:

Answer:

It is imjportant to study rocks because geology gives an untouvhed pice of our history. Rocks can tell about our past, whether it is weather, animals, plants, tools, climate, or anything else, rocks can help solve world problems.

Answer:

Alexander Fleming

Explanation:

the founder of pelincilin is Alexander Fleming