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joja [24]
3 years ago
7

Một xe đang di chuyển với tốc độ 36km/h thì gia tốc và sau 2s xe lên tới tốc độ 54km/h. Tính gia tốc của xe trong 2s ?

Physics
2 answers:
Gre4nikov [31]3 years ago
6 0

Answer:

a = vf-vi / t

a = (54 km / h-36 km / h) / 2

a = 18/2

a = 9ms⁻²

yulyashka [42]3 years ago
3 0

Answer:

which language is these

Explanation:

we only use english , Hindi ,tamil , bengali and Malayalam

please tell us that it is which language. From that we will slove this

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The complexity and variety of organic molecules is due to
Anastaziya [24]

Answer:

Due to the chemical versatility of carbon atoms

Explanation:

Carbon is a very important element and it is commonly found in many varieties of chemical compounds. They are also found to be present in space in various amount. It is often considered to be versatile because they are capable of forming single, double, as well as triple bonds. This enables them to make single and branched chains. They also form ring chains when combined with other atoms of carbon.

It is because of this versatility of carbon atoms, there forms complex variety of organic molecules.

3 0
4 years ago
Take the following measured gauge (or gage) pressures and convert them to absolute pressures in both kPa and psi units for an am
mamaluj [8]

Answer:

Explanation:

Given

ambient Pressure =98.10 kPa

(a)gauge pressure 152 kPa

we know

Absolute pressure=gauge pressure+Vacuum  Pressure

P_{abs}=152+98.10=250.1 kPa or 36.27 psi

(b)P_{gauge}=67.5 Torr or 8.99 kpa

as 1 Torr is 0.133 kPa

P_{abs}=8.99+98.10=107.09 kPa or 15.53 psi

(c)P_{vaccum}=0.1 bar or 10 kPa

Thus absolute pressure=98.10-10=88.10 kPa or 12.77 psi

as 1 kPa is equal to 0.145 psi

(d)P_{vaccum}=0.84 atm  or 85.113 kPa

as 1 atm is equal to 101.325 kPa

P_{abs}=98.10-85.11=12.99 kPa or 1.88 psi

6 0
3 years ago
Look at the chemical equation. There is a number in the chemical equation that is not a subscript. What do you think the number
Dominik [7]

Answer:

Number of moles or volume

Explanation:

The number 2 on the right hand side signifies the number of moles of the product being formed.

It is necessary to include this number so as not to flout the law of conservation of mass when writing a chemical equation. The law of conservation of mass states that "matter is neither created nor destroyed during the course of a chemical reaction".

Since we must have equal number of matter on both sides of the expression, the coefficient number like the 2 seen in the expression is used to create a balance.

Here, 2 moles of HCl is formed which consists of 1 hydrogen atom and 1 chlorine atom.

5 0
3 years ago
A 12 volt car battery pushes a charge through the headlight circuit with a resistance of 8.5 ohms. How much current is passing t
Illusion [34]
Data:
i (current) = ? (Amps)
R (resistance) = 8.5 Ω
V (voltage) = 12 volts

Formula:
V = R*i\to \boxed{i =  \frac{V}{R} }

Solving:
i = \frac{V}{R}
i = \frac{12}{8.5}
\boxed{\boxed{i \approx 1.41\:Amps}}\end{array}}\qquad\quad\checkmark
8 0
3 years ago
An object, whose mass is 0.660 kg, is attached to a spring with a force constant of 132 N/m. The object rests upon a frictionles
Arada [10]

Answer:

See below

Explanation:

a)  Spring force at release =  k * d = 132 N/m * .120 m = 15.84 N

b) F = ma

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c) Toward the left ....the object is accelerated to the left

7 0
2 years ago
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