Use the table to answer the questions. What is the fastest time trial for the first quarter checkpoint? What is the slowest time trial for the first quarter checkpoint? What is the range of times measured for this checkpoint? All answers in seconds

Answers

Answer 1

Answer:

25

Explanation:

Answer 2

Answer:

Explanation:

What is the fastest time trial for the first quarter checkpoint?  

2.02

seconds

What is the slowest time trial for the first quarter checkpoint?  

2.15

seconds

What is the range of times measured for this checkpoint?  

0.13

seconds


Related Questions


If the amount of gas and temperature are constant and you double the volume of the gas,

Answers

Explanation:

pressure decrease and collision decreases

What is limitation of using marbles as models for atoms

Answers

Explanation:

I think it really depends on what you are using them for but I would say in general that using marbles means you can't investigate the subatomic particles (electron orbitals, nucleus etc.) and also you can't exactly model atomic binding with marbles as they don't really stick together.

I would say those are the two main things but once again really depends on what they're being used for.

Hope this helped!

Intermolecular forces are responsible for which of the following. Select all that apply. Question 5 options: A) Boiling points B) Melting points C) Solubility D) Phase (solid, liquid, gas) at room temperature E) None of the choices are applicable

Answers

Answer:

A) Boiling points

B) Melting points

D) Phase (solid, liquid, gas) at room temperature

Explanation:

Intermolecular forces are attractive forces between molecules. Generally, intermolecular forces are much weaker than intramolecular forces.

All substances exist in one of three states: gas, liquid, or solid. The major difference between the condensed state and the gaseous state is the distance separating molecules.

The boiling points of substances often reflect the strength of the intermolecular forces operating among the molecules. At the boiling point, enough energy must be supplied to overcome the attractive forces among molecules before they can enter the vapor phase. If it takes more energy to separate molecules of substance A than of substance B because A molecules are held together by stronger intermolecular forces, then the boiling point of A is higher than that of B. The same principle applies also to the melting points of the substances. In general, the melting points of substances increase with the strength of the intermolecular forces.

Atoms of Group 6 of the Periodic Table are most likely to form ions with

Answers

Sulfur is in group 6 of the periodic table. What is the charge on its ions, and is the charge positive or negative? The charge is negative, since sulfur is a non-metal. The charge on the ion is (8 - 6) = 2.

c. What is the volume of a rock that has a mass of 75.4 grams and
a density of 3.45g/cm??

Answers

Answer:

75.4 gram /3.45 gram/cubic centimeter  = 21.855072463768 cubic centimeter

Explanation:

V =   m /ρ

where V = Volume, p = Density  and m = Mass

What Is Matter? Someone help me plzzz

Answers

Answer:

matter is anything with mass and volume

One method of rating complexity in scientific disciplines is with respect to the number of variables that are involved in experiments. Using this method, which of the following disciplines is the most complex?
a. Mathematics,
b. Anatomy,
c. Chemistry,
d. Sociology

Answers

Answer:

a. Mathematics

Explanation:

There are various scientific studies and their complexity is different from each other. The one study might be difficult for one student but the other student who has interest in the particular subject might find it easy and interesting. Mathematics is the study which involves lot of variables which increase its level of complexity. The scientist may stuck in solution for years due the complexity of the multiple variables.

Which statement would BEST describe the diagram ?

Answers

It is the first answer because 800 N is stronger than 400 N so the car will go to the right.

Four properties of water are listed. It reacts with halogens to form oxygen gas as one of the products. It is transparent and tasteless in its pure form. It freezes at a temperature of 0 °C and lower. It decomposes to form hydrogen and oxygen. Which are the chemical properties of water?

Answers

Answer:

1 and 4 took the test

Explanation:

please help me out with this ​

Answers

1- 50.4
2- 13.24
3- 16.18

if a bar of motilium cost .0.2 dollars how much will 200 bars cost

Answers

Answer: 40

Explanation: 0.2 x 200


Why do we buy milk by the gallon and a bottle of coke by the liter?

Answers

Answer:

In 70s we were not much familiar with coca cola. Pepsi were sold in liter and milk is traditionally sold locally sold in gallon.

Explanation:

Sarah Brew said that unlike to the global brand like coca cola, Pepsi are sold at global level but milk is sold at local level follow the local custom measurement. If we look back in history, the milkman sold milk door to door in the form of quartz and the gallons. Same things consumers expected from seller.

These are two ways that play a role in grocery shopping. That's  why the congress make a product list in form of liter and metric and traditional inches , gallons, pounds, milk etc.

Cell theory states: A. All living things need glucose to survive B. All living things Must have a nucleus surrounding DNA C. All living things are composed of cells D. The basic unit of life is a cell Group of answer choices C & D A & D B, C & D B only

Answers

Answer:

C & D

Explanation:

The cell theory states that every living organism are made of some of the smallest functional unit called the cells. The three scientist who contributed to its development are Rudolf Virchow, Theodor Schwann and Matthias Schleiden.

Cell theory says that cell is considered to be the basic unit of our lives and living things are composed of one or more than one cells. The new cells in an organism arises from the existing cells.

What does intrinsic mean in science

Answers

An intrinsic property is independent of how much of a material is present and is independent of the form of the material, one large piece or a collection of small particles. Intrinsic properties are dependent mainly on the fundamental chemical composition and structure of the material.

my car is 10.4 feet long. how many inches is that​

Answers

Answer:

124.8 inches

Explanation:

124.8 inches! Hope this helped! :D

is marble a compound or element?​

Answers

Answer:

compound

Explanation:

"Marble is typically more than 95% calcium carbonate, perhaps even 99% calcium carbonate, and calcium carbonate is a compound. Marble has a good claim to be recognized as a compound."

Answer: Element

Explanation: No, marble is not a compound, because for a rock to be called marble other characteristics, beyond the chemical composition, have to have specific values. But marble is made up of only one compound, calcium carbonate. Colored marbles do contain small amounts of other chemicals.

How do the densities of the two objects compare?

Answers

Compare the density of the object in question to the density of water. If its density is less than water, it will float. For example, oak floats because its density is 0.7 g/cm³. If the density of an object is greater than water, it will sink.

7. A gas has a volume of 300 mL at 300 mm Hg. What will its volume be if the pressure is changed to 500 mm Hg?​

Answers

Answer:

The volume is

180 mL

Explanation:

In order to solve for the volume we use the formula for Boyle's law which is

[tex]P _{1} V _{1} = P _{2}V _{2}[/tex]

where

P1 is the initial pressure

V1 is the initial volume

P2 is the final pressure

V2 is the final volume

Since we are finding the final volume we are finding V2

Making V2 the subject we have

[tex]V _{2} = \frac{P _{1} V _{1}}{P _{2} } [/tex]

From the question

P1 = 300 mmHg

V1 = 300 mL

P2 = 500 mmHg

Substitute the values into the above formula and solve for the final volume obtained

That's

[tex]V _{2} = \frac{300 \times 300}{500} \\ = \frac{90000}{500} \\ = \frac{900}{5} [/tex]

We have the final answer as

180 mL

Hope this helps you

Christina weighs 119 lbs. What is her mass in grams?

Answers

Answer:

53977.5g

Explanation:

1lb = 2.205

119 ×[tex]\frac{1lbs}{2.205kg} = 53.9775[/tex]×[tex]\frac{1000g}{1kg}[/tex] = 53977.5g

1 pound = 453.592 grams

For an approximate result, multiply the mass value by 454

119 x 453.592 = ?


119 x 453.592 = 53977.5


53977.5

^^That is your answer

List at least three scientific disciplines related to chemistry mentioned or alluded to in the article. The Ozone Hole

Answers

Answer: biology, climate Science, astronomy etc.

Explanation:

The scientific disciplines that are related to chemistry mentioned or alluded to in the article are:

• Biology: Biology is a natural science which studies living organisms, and this include their molecular interactions, evolution, physical structure, and chemical processes.

• Astronomy: Astronomy is the study of space, and the universe. In astronomy, the stars, planets, and galaxies are all studied.

• Climate science: Climate science is also referred to as climatology and it's the scientific study of climate.

Answer:

1. Atmospheric science, environmental science, climate science, biology, astronomy, human physiology and medicine

Explanation:

Because I said so

Q: A wind-up toy that is wound up but not moving...
(drag the check on one)
does not have energy.
has potential energy.
has kinetic energy.
a has both kinetic and potential energy.

Answers

Answer:

The correct option is;

Has potential energy

Explanation:

The total mechanical energy of a mechanical toy is given as follows;

Total Mechanical Energy = Kinetic Energy + Potential Energy

During the winding up of the coil, the total energy becomes the kinetic energy

The total energy at the point of winding up of the coil = The kinetic energy supplied to the toy by winding the coil

From the first law of thermodynamics, energy cannot be created nor destroyed but can be changed from one form to another

Due to the coil being prevented from unwinding, the kinetic energy  becomes transformed (stored as) into Potential energy of the toy

When the toy is operated it then unwinds the coil bringing about motion and converting back the potential energy to kinetic energy by itself as if it was alive.

At what temperature would one mole of molecular nitrogen (N_2) have 7.0 × 10^3 J of translational kinetic energy (total internal energy)? Note: the atomic mass of N is 14 g/mol.

Answers

Answer:

T = 561.3K

Explanation:

The translational kinetic energy of a gas such as nitrogen is obtained using the formula:

K = 3/2 * n * R * T

Where n  are moles of gases (1mole of N₂), R is gas constant (8.314J/molK)and T is absolute temperature (in K)

If the translational energy of the gas is 7.0x10³J:

7.0x10³J = 3/2 * 1 mole * 8.314J/molK * T

T = 561.3K

Which statement describes an intensive property of matter? It is the same for every sample o single substance. O It depends on how a substance was formed. It is the same for every sample of every substance. O It depends on the amount of substance present.

Answers

Answer:

B: It depends on how a substance was formed.

Explanation:

took the test

Intensive property is the same for every sample of a single substance.

INTENSIVE AND EXTENSIVE PROPERTIES:

Intensive properties are properties of a substance that does not depend on the amount of matter of that substance but rather on the type of matter. Intensive properties include; melting point, boiling point, temperature, density etc.

On the other hand, extensive properties depend on the amount of matter contained in that substance. For example; volume, mass, weight etc.

Since intensive properties are not dependent on amount but dependent on type, they must be the same for every sample of a single substance.

Hence, intensive property is the same for every sample of a single substance.

Learn more: https://brainly.com/question/3006850?referrer=searchResults

Menthol the substance we can smell in mentholated cough drops is composed of carbon, hydrogen and oxygen. A 0.1005 grams sample of menthol is combusted, producing 0.2829 grams of carbon dioxide and 0.1159 grams of water. What is the empirical formula for menthol? If the compound has a molar mass of 156 g/mol, what is its molecular formula?

Answers

Answer:

Empirical and molecular formula are both C₁₀H₂₀O

Explanation:

The formula of menthol is CₐHₓOₙ. In the problem we need to find a, x and n.

The combustion of menthol occurs as follows:

CₐHₓOₙ + O₂ → aCO₂ + 1/2 H₂O

That means moles of carbon dioxide are equal to moles of carbon in menthol and moles of hydrogen are twice moles of water.

Moles CO₂ and mass C:

0.2829g CO₂ * (1mol / 44g) = 6.4295x10⁻³ moles CO₂ = Moles C * 12.01 = 0.0772g C

0.1159g H₂O * (1mol / 18g) = 6.4389x10⁻³ moles H₂O * 2 = 0.01288 moles H * 1.0g/mol = 0.01288g H

That means mass of O in the sample is:

Mass O = 0.1005g - 0.0772g C - 0.01288g H = 0.01042g O * (1mol / 16g) = 6.51x10⁻⁴ moles O

Empirical formula is the simplest whole number ratio of moles of each element present in a compound. Dividing each number of moles in moles O (The smaller number of moles):

H = 0.01288 moles H / 6.51x10⁻⁴ moles O = 19.8 ≈ 20

C =  6.4295x10⁻³ moles C / 6.51x10⁻⁴ moles O = 9.9 ≈ 10

O = 6.64x10⁻⁴ moles O / 6.51x10⁻⁴ moles O = 1

That means empirical formula is:

C₁₀H₂₀O

As molar mass of this empirical formula is:

10*12g/mol + 20*1g/mol + 1*16g/mol = 156g/mol = Molar mass of the compound,

Molecular formula is also C₁₀H₂₀O

Can anyone give me examples of control groups ?

Answers

Answer:

In an experiment in which blood pressure medication is tested, one group is given the blood pressure medication while the control group is given a placebo pill.

In a test of anxiety treatment, one group attends individual therapy sessions and receives a new medication. The control group receives only an inert pill.

A treatment for drug addiction is being tested. A group of meth addicts are given the treatment while the control group is given the placebo.

Researchers are testing the effectiveness of a drug intended to reduce symptoms of Crohn's disease. Many sufferers of Crohn's disease are recruited for the effort and the group that receives the placebo is the control group.

A treatment for hair loss in men is being tested. Men of the same age range are gathered. One group receives an application with the active ingredient while the control group receives an application that appears the same but does not have the active ingredient in it.

hope this helped you

How many moles are in 2.3 grams of phosphorus? :(

Answers

Answer:

there are 0.074 moles in 2.3 grams of phosphorus

Scientific Notation - PLEASE HELP!

Answers

?= 79.5

Hope this can help.
79.5 • 10^6 = 79500000

Carbon-12 and carbon-13 are isotopes of carbon. Which of the following statements is correct?
They both have seven protons in the nucleus.
They both have the same mass number
They both have seven neutrons in the nucleus.
They both have the same atomic number.

Answers

They both have the same atomic number

Carbon-12 and carbon-13 are isotopes of carbon as both have same atomic number. The correct option is D.

What is an isotope?

Isotopes are members of an element family that possess the identical number of protons but differ in their numbers of neutrons.

The atomic number of an element on the Periodic Table is determined by the number of protons in its nucleus. Carbon, for illustration, has six protons and therefore the atomic number is 6.

The three share the position in the periodic table assigned to atomic number 1 and are thus referred to as hydrogen isotopes. The mass of an isotope influences many important properties.

Isotopes can form naturally through radioactive decay of a nucleus or artificially by inundating a stable nucleus with charged particles in a nuclear reactor using accelerators or neutrons.

Thus, the correct option is D.

For more details regarding isotopes, visit:

https://brainly.com/question/11680817

#SPJ2

In a controlled experiment, a scientist is studying how long it takes parachutes of different sizes to fall to the ground. What is the experimental variable?

Answers

The controlled variable would be the weight and time it'll take for the parachutes to land.The uncontrolled variable is the wind and the amount of resistance.

What are the fields of science??

Answers

Answer:

Life science is alternatively known as biology, and physical science is subdivided into branches: physics, chemistry, astronomy and Earth science. These branches of natural science may be further divided into more specialized branches. But that is more writting to explain

Explanation:

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