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3 years ago

Balance the equation with the correct coefficients. C2H2 + 02 → CO2 + H2O

Physics

1 answer:

hoa [83]3 years ago

5 0

Answer:

(2) C2H2 + (5) O2= (4) CO2 + (2) H2O

Explanation:

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If the distance between two objects is decreased to 1/10 of the original

GaryK [48]

The force of attraction between two objects is proportional to the mass of the objects and inversely proportional to the square of teh distance between them. In this casem if the distance is decreased to 1/10 of the original, then teh force of attraction increases by 100 times (10^2).

4 0

4 years ago

Read 2 more answers

A material is nonmagnetic and gaseous and does not conduct heat or electricity. It will, however, react with other elements. It

topjm [15]

Answer:

The correct option is: Nonmetal

Explanation:

Non-metals are the chemical elements that are generally present in the gaseous state at room temperature and have low electrical and thermal conductivity. These elements are non-magnetic and tend to have low density, boiling point and melting point. Non-metals have high electronegativity and ionization energy and react by sharing or gaining electrons from the other elements.

<u>Therefore, the given material is most likely a non-metal.</u>

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4 years ago

A father (mF = 85 kg) and his daughter (mD= 45 kg) stand on a flat frozen lake of negligible friction. They hold a 14 m long r

mr Goodwill [35]

Answer:

4.84615 m

Explanation:

Here the linear momentum is conserved and it is assumed that they will meet at the center of gravity of the system.

The center of gravity is given by

$R=\frac {1}{M}\sum _{i=1}^{n}m_ir _i$

where

i = Particle

m = Mass

r = Position

n = Number of particles

The father's location is taken as reference

$R=\frac{(0\times 85)+(45\times 14)}{85+45}=4.84615\ m$

The father will be 4.84615 m from the origin.

7 0

3 years ago

Metals can be described as

shutvik [7]

They tend to be lustrous, ductile, malleable, and good conductors of electricity, while nonmetals are generally brittle (for solid nonmetals), lack lustre, and are insulators.

7 0

3 years ago

6A certain load and set of slings create a 20-degree angle between the load and each sling leg. Using a spreader for the same li

Otrada [13]

Solution:

The angle between the sling and the load is $20^{\circ}$

So the tension in each sling can be calculated as

$Sin \theta = Mg => T = \frac{Mg}{2Sin\theta}$

$Sin \theta=> \frac{Mg}{2Sin 20^{\circ}}$

Where

M is the mass of the load

The Horizontal reaction on the sling will be inward.

After using the spreader, the new angle between sling and load is $60^{\circ}$ , the tension in the sling will be

$T= \frac{Mg}{2 Sin 60^{\circ}}$ = $\frac{Mg}{2 Sin 20^{\circ}}$

The tension will be same as before in the sling move away through the spreader at an angle more than 90 degree the horizontal force will act opposite and will be outward

5 0

3 years ago