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kenny6666 [7]
3 years ago
15

Help me with these questions pleaseeee!

Physics
1 answer:
notka56 [123]3 years ago
8 0
A dependent variable is something that depends on something else!

go through the list and ask yourself whether or not it depends on something else..

does this make any sense?
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What is economic development​
ivolga24 [154]

Answer:

Economic Development is the creation of wealth from which community benefits are realized. It is more than a jobs program, it's an investment in growing your economy and enhancing the prosperity and quality of life for all residents. Economic development means different things to different people.

6 0
3 years ago
How many atoms are in a sample of 1.83 moles of potassium (K) atoms?
telo118 [61]
<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles.

 </span>1.83 moles K (6.022 x 10^23 atoms / mole ) = 1.10 x 10^24 atoms K
4 0
3 years ago
What minimum heat is needed to bring 250 g of water at 20 ∘C to the boiling point and completely boil it away? The specific heat
Amiraneli [1.4K]

Answer:633.8 KJ

Explanation:

Given

mass of water\left ( m\right )=250gm

Initial temperature\left ( T_i\right )=20^{\circ}C

Final temperature \left ( T_f\right )=100^{\circ}C

Specific heat of water \left ( c \right )=4190 J/kg-k

heat of vaporization\left ( L\right )=22.6\times 10^5 J/kg

Heat required for process\left ( Q\right )=heat to raise water temperature from 20 to 100 +Heat to vapourize water completely

Q=mc\left ( T_f-T_i\right )+mL

Q=0.25\times 4190\times \left ( 100-20\right )+0.25\times 22\times 10^5

Q=\left ( 0.838+5.5\right )\times 10^5

Q=6.338\times 10^5J=633.8 KJ

4 0
4 years ago
The purpose of teaching high levels of math is to filter out students who lack logical intelligence
Pachacha [2.7K]
Answer: False I think that is worded weird tho
7 0
3 years ago
__________ forces are not equal, and they always cause the motion of an object to change the speed and/or direction of an object
mrs_skeptik [129]

Answer:

Unbalanced Forces.

Explanation:

6 0
3 years ago
Read 2 more answers
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