What is the result of friction

Answers

Answer 1

Answer: A result of friction is heat. Anytime friction occurs between two pieces of matter, some sort of heat is cretated. Rub your hands together with force, and you will notice that they become warm. This is because the kinetic energy of the moving mass is not lost when the object slows down due to friction. Instead, it is converted to heat.

Another result can be the creation of a charge of static electricity. For example rubbing a glass rod with a silk cloth will do this.

Answer 2

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Which of these statements explains the relationship among elements, compounds, and mixtures? A. Elements are made of compounds and mixtures. B. Both compounds and mixtures are made up of elements. C. Mixtures are made of elements, and elements are made of compounds. D. Compounds are made of mixtures, and mixtures are made of elements.

Answers

the answer is answer D

Answer:

Its B, both compounds and mixtures are made up of elements.

Which statement below is not accurate about DNA? DNA is the same for all organisms within a species.
DNA is shaped like a double helix (twisted ladder).
DNA is made of sugars, phosphates and nucleotide bases..
The nucleotide bases in DNA pair up in a very specific way.

Answers

Answer:

A is the answer

Explanation:

DNA Is vastly different

If you have a 92.0 gram sample of water, then what mass of hydrogen and what mass of oxygen are in the sample? Make sure you answer in “grams” of Hydrogen and “grams” of Oxygen.

Answers

Answer:

$\boxed{\text{10.29 g H and 81.71 g O}}$

Explanation:

The formula of water is H₂O.

1. Calculate the molar mass of water

2 H = 2 × 1.008 = 2.016 u

1 O = 1 × 16.00 = 16.00 u

MM = 18.02 u

2. Mass of hydrogen

\text{Mass of H} = \text{92.0 g water} \times \dfrac{\text{2.016 g H}}{\text{18.02 g water }} = \textbf{10.29 g $\text{Mass of H} = \text{92.0 g water} * \frac{\text{2.016 g H}}{\text{18.02 g water }} = \textbf{10.29 g H}$ H}

3. Mass of 0xygen

$\text{Mass of O} = \text{92.0 g water} * \frac{\text{16.00 g H}}{\text{18.02 g water }} = \textbf{81.71 g O}\n\n\text{The masses are } \boxed{\textbf{10.29 g H and 81.71 g O}}$

Final answer:

A 92 gram sample of water will consist of approximately 10.22 grams of hydrogen and 81.78 grams of oxygen.

Explanation:

Water

consists of two hydrogen atoms and one oxygen atom. Therefore, it has a

molecular formula of H2O

. To find the mass of each element in a 92 gram sample, we need to know the molar mass of the elements and the compound. The molar mass of hydrogen (H) is about 1 gram per mole, and oxygen (O) has a molar mass of 16 grams per mole. So, the molar mass of water (H2O) is approximately 18 grams per mole (2*1 + 16). This means that in one mole of water, 2 grams are hydrogen and 16 grams are oxygen. If we scale this up to 92 grams, we find that there are approximately 10.22 grams of hydrogen and 81.78 grams of oxygen.

Learn more about Molar Mass here:

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if a gas occupies at 5.40 L at a pressure of 1.25atm, what will be its volume at a pressure of 3.00 atm? (Show work)

Answers

Answer:

Explanation:

Givens

P = 1.25 atm

V = 5.4 L

P1 = 3 atm

V1 = ??

Formula

The basic formula is P*V = P1 * V1

Solution

1.25 * 5.4 = 3 * V1

6.75 = 3*V1

6.75 /3 = 3*V1/3

2.25 = V1

What type of heat is transferred from hot water to metal and plastic forks?

Answers

Answer:

Kinetic energy is an energy that can be applied to another object, often considered the energy of motion.

Explanation:

Metals are generally good conductors of heat.

kinetic energy, hope that helps

Why does water with salt in it freeze much more slower than water without it ? Explain

Answers

When you add salt to water, you lower to freezing point of the substance.

So for example, normal water freezes at 0°C. But water with salt in it won't freeze at 0°C, because its freezing point is lowered.

In answer to the question. It takes longer for water with salt in it to freeze because the substance requires a lower temperature than normal water to freeze.

The more salt in the water, the lower the freezing point will be. When freshwaterfreezes, water molecules of hydrogen and oxygen have bonded together into a crystalline structure of ice. The presence of salt makes it harder for water molecules to bond to the ice structure, because ice naturally repels salt molecules.

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I do not get it hard science it is so hard

Before dinner, Mr. Larsen pushes his daughter Sally on her swing for a fewminutes. The chain creaks and rubs against the metal hook at the top of thebar as she swings through the air. After he stops pushing her, she slows downand eventually stops. This example shows that:A. energy is converted between forms with complete efficiency.B. energy is created as Sally's dad begins to push her.C. energy is destroyed by friction and vibration.D. energy is transferred to friction and vibration as it is converted between different forms.