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77julia77 [94]
3 years ago
5

Calculate:for each object, substitute the values you know into the gravitational potential energy equation to solve for weight.

Record each object's weight in the fourth column
Chemistry
1 answer:
max2010maxim [7]3 years ago
8 0

Answer:

omgggggggg

Explanation:

help

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Bob mixed 5 mg of sodium hydroxide pellets in 100 mL of water. Describe how the rate of the solution changes when he adds 1 mg m
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Actually it’s A not B. If you got this question off of USA Test Prep, the answer is A
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3 years ago
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Also what happens if you decrease NOCL
Paladinen [302]

Answer:

el que paso del one jhaulio

Explanation:

6 0
3 years ago
Cylinders of compressed gas are typically filled to a pressure of 200 bar. For oxygen, what would be the molar volume at this pr
mars1129 [50]

Answer:

a

 V  =   0.124 \ Liters

b

V  =  0.112 \  Liters

Explanation:

From the question we are told that

  The pressure of compressed gas is P  =  200 \  bar = \frac{200}{1.013}=  197.4 \ atm

  The  temperature is  T  =  25^oC =  25 + 273 = 298 \  K

Generally the perfect gas equation is mathematically represented as

     PV =  nRT

substituting 0.08206 L-atm/mol-K  for R and  1 mole for n

We have that

     V  =  \frac{1 *  0.08206 * 298 }{ 197.4}

       V  =   0.124 \ Liters

Generally the van der Waals equation is mathematically represented as

       nRT  =  [P + \frac{n^2 * a }{V^2 } ][V - nb]

=>1 *  0.08206 *298  =  [197.4 + \frac{1^2 *  1.364}{V^2 } ][V - 1 * 3.19 * 10^{-2}]

=>    V  =  0.112 \  Liters

7 0
4 years ago
A 12 kg object experiences a net force of 120 N. What acceleration will this object experience?
Ivan

Answer:

<h2>10 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m} \\

f is the force

m is the mass

From the question we have

a =  \frac{120}{12}  \\

We have the final answer as

<h3>10 m/s²</h3>

Hope this helps you

3 0
3 years ago
An element has an atmomic number of 68. The number of protons and electron in a neutral atom of the element are?
Bess [88]

Answer:

Explanation:

An element whose atomic number is 68 (number Z), has 68 electrons and 68 protons. According to the periodic table it corresponds to the element Erbium (Er), whose mass number (A) is 167. The number of neutrons is 167-68 = 99.

8 0
4 years ago
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