Answer:
wut goes up must come down i dunno lol
Explanation:
<span>The 2nd truck was overloaded with a load of 16833 kg instead of the permissible load of 8000 kg.
The key here is the conservation of momentum.
For the first truck, the momentum is
0(5100 + 4300)
The second truck has a starting momentum of
60(5100 + x)
And finally, after the collision, the momentum of the whole system is
42(5100 + 4300 + 5100 + x)
So let's set the equations for before and after the collision equal to each other.
0(5100 + 4300) + 60(5100 + x) = 42(5100 + 4300 + 5100 + x)
And solve for x, first by adding the constant terms
0(5100 + 4300) + 60(5100 + x) = 42(14500 + x)
Getting rid of the zero term
60(5100 + x) = 42(14500 + x)
Distribute the 60 and the 42.
60*5100 + 60x = 42*14500 + 42x
306000 + 60x = 609000 + 42x
Subtract 42x from both sides
306000 + 18x = 609000
Subtract 306000 from both sides
18x = 303000
And divide both sides by 18
x = 16833.33
So we have the 2nd truck with a load of 16833.33 kg, which is well over it's maximum permissible load of 8000 kg. Let's verify the results by plugging that mass into the before and after collision momentums.
60(5100 + 16833.33) = 60(21933.33) = 1316000
42(5100 + 4300 + 5100 + 16833.33) = 42(31333.33) = 1316000
They match. The 2nd truck was definitely over loaded.</span>
Answer:
Connection between the sodium and chlorine atoms are Ionic
Explanation:
Ionic bond is defined as the bond formed between two atoms by the complete transferring of electrons. It is type of chemical bond that generates two oppositely charged ions i.e Anion (-ve charge) and cation (+ve charge).
Metals that has 1, 2 or 3 electrons in its valence shell losses valence electrons and become positively charged cation. These electron attracted by the non-metals to form bond and become negatively charged anion. In this way, ionic bond is generated between 2 atoms.
Sodium is a metal with 1 electron in its valence shell. Chlorine is a non-metal with 7 less electrons (need 1 more to complete its valence shell to stabilize) in its valence shell. When sodium comes in contact with chlorine, it losses its one valence electron and become cation with +1 charge. This electron is accepted by chlorine and become anion with -1 charge. In this way ionic bond is formed between sodium and chloride.
Na⁺ + Cl ⁻⇒ NaCl
Given:
Water, 2 kilograms
T1 = 20 degrees Celsius, T2 = 100
degrees Celsius.
Required:
Heat produced
Solution:
Q (heat) = nRT = nR(T2 = T1)
Q (heat) = 2 kilograms (4.184 kiloJoules
per kilogram Celsius) (100 degrees Celsius – 20 degrees Celsius)
<u>Q (heat) = 669.42 Joules
</u>This is the amount of heat
produced in boiling 2 kg of water.
Answer:
because you need to tell the engine it needs to work faster
Explanation: