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Free_Kalibri [48]
3 years ago
14

A 5-kg object experiences forces as shown in the diagram. Which statement best describes the motion of the object? A) The object

would have a velocity of 6 m/s to the left. B) The object would have a velocity of 6 m/s to the right. C) The object would have an acceleration of 6 m/s/s to the left. D) The object would have an acceleration of 6 m/s/s to the right.
Physics
1 answer:
Ymorist [56]3 years ago
4 0

Answer:it c

Explanation:

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consider two stars, star a and star b. star a has a temperature of 4900 k , and star b has a temperature of 9900 k . how many ti
ValentinkaMS [17]

The Energy flux from Star B is 16 times of the energy flux from Star A.

We have Two stars - A and B with 4900 k and 9900 k surface temperatures.

We have to determine how many times larger is the energy flux from Star B compared to the energy flux from Star A.

<h3>State Stephen's Law?</h3>

Stephens law states that if E is the energy radiated away from the star in the form of electromagnetic radiation, T is the surface temperature of the star, and σ is a constant known as the Stephan-Boltzmann constant then-

$\frac{Energy}{Area} = \sigma\times T^{4}

Now -

Energy emitted per unit surface area of Star is called Energy flux. Let us denote it by E. Then -

$E= \sigma\times T^{4}

Now -

For Star A →

T_{A} = 4900 K

For Star B →

T_{B} = 9900 K

Therefore -

$\frac{T_{B} }{T_{A} } =\frac{9900}{4900}

\frac{T_{B} }{T_{A} }= 2.02 = 2 (Approx.)

Now -

Assume that the energy flux of Star A is E(A) and that of Star B is E(B). Then -

$\frac{E(B)}{E(A)} = \frac{\sigma\times T(B)^{4} }{\sigma \times T(A)^{2} }

E(B) = E(A) x (\frac{T(B)}{T(A)} )^{4}

E(B) = E(A) x 2^{4}

E(B) = 16 E(A)

Hence, the Energy flux from Star B is 16 times of the energy flux from Star A.

To learn more about Stars, visit the link below-

brainly.com/question/13451162

#SPJ4

4 0
2 years ago
You’ve had practice calculating the grams of hydrogen gas, but it is also possible to calculate the amount of oxygen gas produce
alekssr [168]

Answer:41.991ml

Explanation:

Equations: 2 H2O → 4H+ + 4e + O2 OXIDATION

2 H+ + 2e → H2 REDUCTION 

Electrolysis is the chemical decomposition of compounds when electricity is made to pass through a molten compound or solution.

from the oxidation reaction:

1moles of oxygen requires 4moles of electrons to be discharged at the product

F=96500C/mol

Quantity of charge Q=It

=60*60*0.201A

Q=723.6C

Mole=Q/(F*mole ratio of electron)

Mole= 723.6/(4*96500)

Mole=((1809)/(965000))

M=0.0018746114

M1/M2=V1/V2

1/0.00187=22.4dm^3/V2

V2=22.4*0.00187

V2=0.04199129534dm^3

41.99129534ml

5 0
3 years ago
Please help me pls I beg pls pls pls please please PLEAAAAAAAAASSSSSSEEE
morpeh [17]

Jackson sells lemonade for $2 per cup. he paid $20 for supplies to sell 5 cups. What is the domain for this scenario

5 0
3 years ago
What earthquake damage is Texas likely to suffer
kumpel [21]
-- Most of the southern part of the state is considered to have
no risk of damage.

-- Most of the upper part of the state is considered to be at risk
for only minor damage.

-- A tiny part of the state, in the 'Big Bend' region in the west, is
considered to be at risk for moderate damage.
3 0
4 years ago
Read 2 more answers
If you throw an apple towards the sky why its going up in spite of gravitational pull? .
Paul [167]

Answer:

due to tension force acting against gravitational pull

Explanation:

hope this somewhat helps :)

4 0
3 years ago
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