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hoa [83]
3 years ago
13

(bored and also curious)

Physics
2 answers:
alukav5142 [94]3 years ago
5 0

love when you look in someone's eyes and its just just and him everything disappear.When he walks in your breathless and when he talks is like a melody for your ears.love is when your eyes always look for that person , when heart skips beat and is like a simple earthquake in it.

svetlana [45]3 years ago
3 0
The chicken , caring about someone or sth so much that the thought of them can bring u happiness , life isn’t a lie but it’s full of lies
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A football is kicked into the air from an initial height of 4 feet. The height, in feet, of the football above the ground is giv
kakasveta [241]

Answer: 0.5 seconds or 2.625 seconds

Explanation:

At t = 0, The ball is 4 ft above the ground.

The height of the football varies with time in the following way:

s(t) = -16 t² + 50 t + 4

we need to find the time in which the height would of the football would be 25 ft:

⇒25 = -16 t² + 50 t + 4

we need to solve the quadratic equation:

⇒ 16 t² - 50 t + 21 = 0

t = \frac{50 \pm \sqrt{50^2-4\times 16\times 21}}{2\times16}

⇒ t = 0.5 s or 2.625 s

Therefore, at t = 0.5 s or 2.625 s, the football would be 25 ft above the ground.

3 0
3 years ago
Read 2 more answers
A man pushes down on a table. what does the table do to the man?
solong [7]

Question: A man pushes down on a table. what does the table do to the man?

Answer:  pushes back against the hand

Explanation: The weight of the ma  pushes down on the table with a force mg while the table pushes up on the book with an equal and opposite force

question answered by

(jacemorris04)

3 0
3 years ago
Read 2 more answers
Consider two different rods. The greatest thermal conductivity will be in the rod with:
sergey [27]

Answer:

Options A and D are correct

Explanation:

The thermal conductivity of a metal is the property of a metal to allow heat flow through it. conductivity is higher in conductors and low in insulators. Thermal conductivity is high in metals due to the metallic bonds that exist in metals and the presence of free electrons within the metal which allow easy flow of heat from one atom to another.From the problem the rod which contains freer electrons will allow more heat to flow easily hence have a higher thermal conductivity.

Thermal conductivity has the formula below;

k= \frac{QL}{AΔT}

  • k is thermal conductivity,
  • A is cross sectional area
  • L is length of rod
  • Q is quantity of heat transferred to material.
  • ΔT is temperature change.

From the above equation we can see that thermal conductivity is inversely proportional to A and directly proportional to L. This mean the rod with less area will have a higher thermal conductivity and the rod with a higher length will have higher k. Hence option C i wrong and option D is correct.

For specific heat, its very much different from thermal conductivity. Specific heat is the ability of a material to hold heat while thermal conductivity is the ability of heat to flow through a material.

4 0
3 years ago
what is the light that appears when you touch something metal while you have alot of static electricity​
geniusboy [140]

When you touch a doorknob (or something else made of metal), which has a positive charge with few electrons, the extra electrons want to jump from you to the knob. That tiny shock you feel is a result of the quick movement of these electrons.
3 0
3 years ago
Is anyone good at physics who can help me??
Elenna [48]

Answer: 7

Explanation:

I might be wrong but let me know if it is or not.

8 0
3 years ago
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