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s2008m [1.1K]
3 years ago
9

Wheat ground into flour is an example of a ___ change?

Physics
1 answer:
EleoNora [17]3 years ago
6 0

Oml... Its physical... Unless if your turning that wheat into bread by using fire it would be chemical.






Yeeeeeeeetus


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Graphs often permit scientists to make estimations for items when there is no data. Please select the best answer from the choic
Zinaida [17]

Answer:

no they don't but I think it's 8

3 0
2 years ago
What does a negative value for the focal length tell you?
Llana [10]
 the focal length <span> is much more decent  for a concave, and also worse</span><span> for a convex mirror. When the image that is given, distance is good and decent, images are always on the same area of the mirror as the object given , and it is not fake.  images distance  is </span>never positive <span>, the image is on the oppisite side of  the mirror, so the image must be virtual.</span>
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4 years ago
A 15kg ball accelerates at a rate of 3m/s/s. What force was required?
hoa [83]

Answer:

<h2>45 N</h2>

Explanation:

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force = mass × acceleration

From the question we have

force = 15 × 3

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<h3>45 N</h3>

Hope this helps you

3 0
3 years ago
HELP...<br> 3.00 amu = _____ Mev.<br><br> 3.22 x 10-3<br> 2.79 x 103<br> 3.10 x 102
DanielleElmas [232]
The correct answer is:
2.79 \cdot 10^3 MeV
Let's see why.

1 amu corresponds to the mass of the proton, which is:
m_p = 1.66 \cdot 10^{-27} kg
if we convert this into energy, using Einstein equivalence between mass and energy, we find:
E=mc^2 = (1.66 \cdot 10^{-27} kg)(3\cdot 10^8 m/s)^2 = 1.49 \cdot 10^{-10} J
Now we can convert it into electronvolts:
E= \frac{1.49 \cdot 10^{-10}kg}{1.6 \cdot 10^{-19} J/eV} =9.34 \cdot 10^9 eV = 934 MeV

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5 0
4 years ago
Read 2 more answers
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zysi [14]

Answer:

Q = 4.40 \times 10^5 Cal

Explanation:

Here we know that initial temperature of ice is given as

T = 0^o C

now the latent heat of ice is given as

L = 80 Cal/g

now we also know that the mass of ice is

m = 5.50 kg

so here we know that heat required to change the phase of the ice is given as

Q = mL

Q = (5.50 \times 10^3)(80)

Q = 4.40 \times 10^5 Cal

3 0
3 years ago
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