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2 years ago

PLEASE CAN PEOPLE HELP WITH MY STUFF I SUCK AT CONCENTRAITING IN SCHOOL

Physics

2 answers:

Musya8 [376]2 years ago

8 0

Answer:

I can help what subject and grade do you need help with?

Explanation:

Im in 8th so anything above 8th i cant help with sorry!

NeTakaya2 years ago

3 0

Answer:

maybe:)

Explanation:

it really just depends on the subject and grade for me, I'm good in history and writing!

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brick, dry soil, paper, and water. If all four substances were exposed to sunlight for the same amount of time, which substance

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Water because the light is able to enter the water and allow heat to enter faster.

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3 years ago

What is the atomic number of an element whose atoms each 47 protons,60 neutrons, and 47eletrons

Lorico [155]

What is the atomic number of an element whose atoms each 47 protons, 60 neutrons, and 47 electrons?

The correct answer is number 47 or Ag (Silver).

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3 years ago

What is formed when two surfaces come into contact

balu736 [363]

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3 years ago

What is the initial velocity of the object represented by the graph?

Arturiano [62]

Initial velocity of the object: 5 m/s

Explanation:

The figure in the problem is missing: find it in attachment.

The graph in the figure represents the velocity of an object (v) versus the time passed (t).

Here we are asked to find the initial velocity of the object.

This means that we have to find the velocity of the object when the time is zero, so when

t = 0

By looking at the corresponding value on the y-axis (velocity), we see that when t = 0, then

v = 5 m/s

Therefore, the initial velocity of the object is 5 m/s.

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5 0

3 years ago

Read 2 more answers

The heat flux for a given wall is in the x-direction and given as q^n = 11 W/m^2, the walls thermal conductivity is 1.7 W/mK and

MrMuchimi

Answer:

$\frac{dT}{dx} = 6.47 ^oC/m$

Also as we can see the equation that heat flux directly depends on the temperature gradient so more is the temperature gradient then more will be the heat flux.

For positive temperature gradient the heat will flow outwards while for negative temperature gradient the heat will flow inwards

Explanation:

As we know that heat flux is given by the formula

$q^n = K\frac{dT}{dx}$

here we know that

K = thermal conductivity

$\frac{dT}{dx}$ = temperature gradient

now we know that

$q^n = 11 W/m^2$

also we know that

K = 1.7 W/mK

now we have

$11 = 1.7 \frac{dT}{dx}$

so temperature gradient is given as

$\frac{dT}{dx} = \frac{11}{1.7} = 6.47 K/m$

also in other unit it will be same

$\frac{dT}{dx} = 6.47 ^oC/m$

Also as we can see the equation that heat flux directly depends on the temperature gradient so more is the temperature gradient then more will be the heat flux.

For positive temperature gradient the heat will flow outwards while for negative temperature gradient the heat will flow inwards

5 0

3 years ago