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3 years ago

Which classification of property does not affect density?

Physics

1 answer:

Aleks [24]3 years ago

5 0

Intensive property is the classification of property that does not affect density

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Small blocks A and B are held at rest on a smooth plane inclined at 30° to the horizontal. Each is held in equilibrium by a forc

Olin [163]

<h3>Answer :</h3>

First of all, See the attachment for better understanding $.$

_________________________________

❂ Weight of block A :

➝ mg sin30° = 18

➝ W (1/2) = 18

➝ W = 18×2

➝ W = 36N 

❂ Weight of block B :

➝ N sin30° = 18

➝ (Mg cos30°) sin30° = 18

➝ W' (√3/2)(1/2) = 18

➝ W' (√3/4) = 18

➝ W' = 72/√3

➝ W' = 41.61N

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3 years ago

WILL GIVE BRAINLIEST

max2010maxim [7]

D, the plant takes Solar/Light energy and converts it into chemical energy.

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4 years ago

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Can some help me out on some science ?

Dennis_Churaev [7]

Yea but whats the question

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3 years ago

Read 2 more answers

0.500 kg of ethyl alcohol at 33.0°C

Bingel [31]

Answer:

26.06

Explanation:

One thing to note first is that, after the ethyl alcohol and water is mixed, the heat energy (Q) is equal for both of them. So:

<h3>m c ΔT (water) = m c ΔT (ethyl) </h3>

Second thing to note is that ΔT is just the absolute value of the final temperature of the solution minus the initial temperature of the ethyl, or water. So the previous equation becomes:

<h3>m c (Tfin - Tinit) (water) = m c (Tfin - Tinit) (ethyl) </h3>

And since we know the mass and specific heat of the water and ethyl alcohol, we can substitute those in:

(I wrote 33 - Tfin for ethyl because ΔT should be a positive number in this case)

Now finally we can expand out the parenthesis and use a little algebra to solve:

Now use algebra to separate the Tfin coefficients onto one side and everything else on the other, and we get:

And when you divide both sides be 3318, you get your answer of:

<h3>Tfin = 26.06118 or 26.1 for significant figures</h3>

Hope that helps!

3 0

4 years ago

What is the pH of a solution with a hydrogen ion concentration of 2.0x10^3.(Use 3 digits)

Luba_88 [7]

Answer:

2.70

Explanation:

pH = -log[H+]

pH = -log[2.0x10^-3]

pH = 2.70

6 0

3 years ago