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mojhsa [17]
3 years ago
15

Which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding

more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air
Physics
2 answers:
oee [108]3 years ago
8 0

Answer:

b and d

Explanation:

b and d

son4ous [18]3 years ago
6 0
Increasing concentration of on or more reactints will increse the rate.

So
<span> adding more oxygen to the reaction

is your answer
</span>
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the choices below each describe the appearance of an h-r diagram for a different star cluster. which cluster is most likely to b
Kitty [74]

The cluster that is most likely to be located in the halo of our galaxy is the diagram that shows main-sequence stars of every spectral type except O, along with a few giants and supergiants.

<h3>What are star clusters?</h3>

Star clusters are large collections of stars. Star clusters are classified into two types: Globular clusters are gravitationally bound groups of tens of thousands to millions of old stars.

Because of their location on the dusty spiral arms of spiral galaxies, they are sometimes referred to as galactic clusters. Stars in an open cluster share a common ancestor as they all formed from the same massive molecular cloud.

A typical spiral galaxy has a faint, extended stellar halo. A stellar halo is an essentially spherical population of stars and globular clusters thought to surround most disk galaxies and the cD class of elliptical galaxies. It should be noted that a halo is a spherical cloud of stars surrounding a galaxy. Astronomers have proposed that the Milky Way's halo is composed of two populations of stars.

Learn more about star on:

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7 0
1 year ago
A classification of metamorphic rocks would indicate whether they are____
marin [14]
Its either letter a or c
6 0
3 years ago
What is the average power dissipated by a resistor of resistance R = 25 Ω in an LRC circuit for which the power factor is equal
olga55 [171]

Answer:

0.08 w

Explanation:

AVERAGE POWER : Average power is defined as the average work per unit time. average power is denoted by P its depend on the voltage current and power factor.

the expression for the average power is given as

P=V_rI_r cosΦ

We have given maximum voltage =8 volt

V_r=\frac{8}{1.414}

power factor =.25

resistance =25Ω

power factor =\frac{R}{Z}

power factor=\frac{25}{Z}

From here Z=100

P=\frac{8}{1.414} ×\frac{v_r}{Z} ×cosΦ

=5.6577×0.05677×0.25

=0.08w

3 0
3 years ago
A box of mass 64 kg is at rest on a horizontal frictionless surface. A constant horizontal force F~ then acts on the box and acc
iren2701 [21]

Answer:

The correct answer is;

The magnitude of the force is 35.12 N

Explanation:

To solve the question, we note that the friction is zero and the force causes motion of a stationary mass

One of the equations of motion is required such as

v² = u² + 2× a× s

Where

v = Final velocity = 5.93 m/s

u = Initial velocity = 0 m/s , object at rest

a = acceleration

s = distance moved = 32 meters

But v = Distance/Time = 32 m /5.4 s = 5.93 m/s

Therefore

5.93² = 2×a×32

or a = 35.12/ 64 = 0.55 m/s²

Therefore Force F = Mass m × Acceleration a

Where mass m = 64 kg

Therefore F = 64 kg×0.55 m/s² = 35.12 N

3 0
3 years ago
People who are number smart tend to?
Troyanec [42]
I think the answer is C
6 0
3 years ago
Read 2 more answers
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