the mass of the whole object is equal to the sum of all its parts A. Law of Conservation of Energy B. Law of Conservation of Mass C. Law of Conservation of Weight

HELP PLEASE ILL GIVE YOU BRAINLIEST OR WHATEVER AND LIKE 30 POINTS JUST PLEASE ANSWER ME​

Answers

Answer 1

Answer:

B. Law of Conservation of Mass

Explanation:

In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction. If we account for all reactants and products in a chemical reaction, the total mass will be the same at any point in time in any closed system.


Related Questions

Calculate Vector component in Y if the hypotenuse is 32 and angle is 45

Answers

Answer:

The correct option is;

c. 22.6

Explanation:

The given parameters are;

The hypotenuse of the vector = 32

The angle of the vector = 45°

Therefore, the vector component in the y-axis is given as follows;

[tex]v_y = v \times sin(\theta)[/tex]

Substituting the values from the question gives;

[tex]v_y = 32 \times sin(45^{\circ}) \approx 22.6[/tex]

The vector component in the y-axis, [tex]v_y[/tex], is approximately 22.6.

What are the Laws of conservation of atoms?​

Answers

Answer:

Both the initial and final substances are composed of atoms because all matter is composed of atoms. According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and kind of atoms after the chemical change as were present before the chemical change.

Explanation:

Answer:

The law of conservation of atoms is simple but it has a great affect. An atom cannot be destroyed by such a force. Matter/atoms can't be created by any means. An atom exits only by nature and not by force.

Hope this helped! Please mark brainliest! Have a great day!

How do you solving kinematic equations for horizontal projectiles?

Answers

See projectiles are very simple unless you understand its core concepts....projectile is nothing just mixture of upward motion and horizontal motion....
THE KEY IS FORGET THE NAME PROJECTILE...ITS JUST HORIZONTAL MOTION + VERTICAL MOTION

(NEED HELP ASAP)
In a lab investigation one group of students (group a) measures the speed of a 0.1 toy car to be 2.5 m/s at the bottom of a ramp another group of students (group b) measures the speed of the car to be 3 m/s at the bottom of the ramp the cars starting position at the top of the ramp is 1 m high.

a. what is the potential energy of the car at the beginning of the experiment before it's speed is measured?

b. Calculate the kinetic energy of the car for group a.

C. Calculate the kinetic energy for the car for group b.

Answers

Answer:

a = 0.98J

Explanation:

PE = mgh

PE = 0.1 x 9.8 x 1

PE = 0.98J

(a) The potential energy of the car at the beginning of the experiment is 9.8(m) J.

(b) The kinetic energy of the car for group a is 3.125(m) J.

(c) The kinetic energy of the car for group b is 4.5(m) J.

Potential energy of the car at the beginning of the experiment

The potential energy of the car is calculated as follows;

P.E = mgh

where;

m is mass of the carg is accleration due to gravityh is height of the car

P.E = m x 9.8 x 1

P.E = 9.8(m) J

Kinetic energy of the car for group a

K.E = ¹/₂mv²

K.E = ¹/₂ x m x (2.5)²

K.E = 3.125(m) J

Kinetic energy of the car for group b

K.E = ¹/₂mv²

K.E = ¹/₂ x m x (3)²

K.E = 4.5(m) J

Learn more about kinetic energy here:https://brainly.com/question/25959744

#SPJ2

A complex arrangement of pulleys forms what is called the block in a block and tackle. The rope used to lift the pulleys and the load is the tackle. A block and tackle is used to lift a truck engine, which has a weight and output force of nearly 8000 N. The input force required to lift this weight using the block and tackle is 400N. What is the mechanical advantage of the block and tackle?

Answers

Answer:

Mechanical advantage = 20

Explanation:

Given:

Output force = 8,000 N

Input force = 400 N

Find:

Mechanical advantage

Computation:

Mechanical advantage = Output force / Input force

Mechanical advantage = 8,000 / 400

Mechanical advantage = 20

Two bowling balls, each with a mass of 8.52 kg, are traveling toward each other. Find the total momentum of the system if both balls have a speed of 2.13 m/s, but are traveling opposite of one another.
a. 18.1
b. 36.3
c. 0.0

d. 17.4

Answers

b=36•3

momentum=mass×velocity

The total momentum of the given system is equal to zero. Therefore, option (C) is correct.

What is the law of conservation of momentum?

The linear momentum can be described as the product of the mass times the velocity of that object. Conservation of momentum is a property of an object as the total amount of momentum stays the same.

According to the law of conservation of momentum, the sum of the momentum before and after the collision of the objects must be equal.

m₁ u₁ + m₂ u₂ = m₁ v₁ + m₂v₂

where u₁ and u₂ are initial speed while v₁ & v₂ is final speed and m₁ and m₂ is the mass of the collided objects.

The first ball, m = 8.52 g and v = 2.13 m/s

The momentum of the first ball = 18.15 g.m/s

The second ball is moving in the opposite direction w.r.t. first ball,

The second ball, m = 8.52 g and v = - 2.13 m/s

The momentum of the first ball = - 18.15 g.m/s

The total momentum  of the system = 18.15 + (-18.15) = 0

Therefore, the total momentum of the given system is zero.

Learn more about the law of conservation of linear momentum, here:

brainly.com/question/17140635

#SPJ6

You place a drop of blue food coloring in a cup of cold water and another drop of food coloring in a cup of hot water. Which observation is correct and why? A The food coloring in the hot water will spread more slowly than in the cold water because water molecules move more slowly when hot. B The food coloring in the hot water will spread more quickly than in the cold water because water molecules move more quickly when hot. C The food coloring in the cold water will spread more quickly than in the hot water because water molecules move more quickly when cold. D The food coloring in the cold water will spread at the same rate at the food coloring in the hot water because water molecules at any temperature move at the same rate.

Answers

Answer:

B food coloring will move quicker in hot water because the molecules move faster when they are hot

Explanation:

SCIENCE! aaaaand my physics text book

Option B is correct:  The food coloring in the hot water will spread more quickly than in the cold water because water molecules move more quickly when hot since they have more kinetic energy.

Kinetic energy of the molecules:

According to the question, we place a drop of blue food coloring in a cup of cold water and another drop of food coloring in a cup of hot water and then observe the spreading of the blue color in both the cups.

Option B will be correct because the kinetic energy of the molecules of a gas or a liquid is directly proportional to the absolute temperature of the gas or the liquid.

High kinetic energy means that the molecules will have higher velocity, which will make it easier for any solvent to dissolve in water since it will spread faster.  

So the cup which has water at a higher temperature will have a faster spread of the food coloring.

Learn more about kinetic energy:

https://brainly.com/question/12669551?referrer=searchResults

PLEASE HELP IF YOU KNOW THE ANSWER QUICK PLEASE!!!

Answers

Answer:

d

Explanation:

A cork floats on the surface of an incompressible liquid in a container exposed to atmospheric pressure. The container is then sealed and the air above the liquid is evacuated. The cork:

Answers

Question:

A cork floats on the surface of an incompressible liquid in a container exposed to atmospheric pressure. The container is then sealed and the air above the liquid is evacuated. The cork:

A. sinks slightly  

B. rises slightly  

C. floats at the same height  

D. bobs up and down about its old position

Answer:

The correct answer is C)  floats at the same height  

Explanation:

The liquid is incompressible because its density very high and leaves no room for further compaction whether or not there is atmospheric pressure. So when you put a cork on the liquid, pressure or no pressure, there is no displacement hence it floats on the same height regardless of the absence of air.

Cheers!

Other Questions
CRITICAL VOCABULARYredistributerobustlypredominantlyrelevantexpansivecollaborate1. The topic is too ____________to research, so I'm narrowing it down.2. If we _____________on the project we can all share the work.3. Let's____________the chores to divide the tasks more fairly.4. At home, they__________speak their native language, Spanish5. Evidence that is___________clearly connects to a claim.6. The vegetables grew__________ so we had a big harvest In Joey's neighborhood the ratio of families with dogs to families with cats is 5 to 2. There are 15 more families with dogs than families with cats. How many families have cats, and how many families have dogs? Solve for x in the equation: 2x-7=14 An air mass takes on temperature and moisture characteristics of the landor water beneath it. What kind of air mass forms over tropical waters thathave been heated by the sun?A) cool and moistB) hot and very dryC) warm and moistD) cold and dryI need this today please help 21. Melanie is making homemade stickers, She usesthe recipe shown to create the glue for the stickersreasonable estimate for the number of batches shea. She has 545 milliliters of vinegar. Which is a morecan make,5 or 7? Explain your answer. About how many times as many milliliters of vinegar are needed thanlemon extract?(brainliest included for correct answer if not report) PLZ HELP 72 POINTSWhat outcome did France want for the peace treaty being negotiated at Versailles?Question 19 options:a crippled Germany unable to threaten France in the futurea strong Russia to balance power in postwar Europea generous peace for Germany to avoid future revengea militarily weak, but economically stable GermanyQuestion 20 (3 points) What did Woodrow Wilson think could lead to another world war?Question 20 options:allowing the German military to continue to existrequiring nations to give up their coloniesstripping Germany of its overseas coloniescreating an international organization of nationsQuestion 21 (3 points) Wilson hoped that self-determination would end the old imperialist system of colonial empires. Was his hope fully realized in the Treaty of Versailles?Question 21 options:YesAustria-Hungary was divided into new, independent nations based on the wishes of the ethnic groups in the regionNoGermany's old colonies in Africa were turned over to France and BritainYesthe Ottoman Empire was dissolved and its subjects granted complete independenceNothe Austro-Hungarian Empire was allowed to retain most of its territory. Blood types are determined by the antibodies present in the plasma. Please select the best answer from the choices provided T F What does the triangle mean in physics? Mrs. Conley asks her class what kind of party they want to have to celebrate their excellent behavior. Out of all the students in the class, 5 want a ice cream party, 7 want a movie, 10 want a costume party, and the rest want are undecided. If 20% want a ice cream party, how many students are in class? Think about what liberty and freedom meant in the past and what they mean today. What has changed and what has remained the same? Where does the H+ come from that makes ATP synthase work?Electron Transport ChainKrebs cycleGlycolysis Which sentence contains an inappropriate shift in verb tense?Medicine made remarkable advances in the 20th century, as technology entered the operating theater, and new antibiotics became available.Medicine continued to make remarkable advances in the 20th century, as technology entered the operating theater and new antibiotics became available.Medicine makes remarkable advances in the 20th century, as technology entered the operating theater and new antibiotics become available.Medicine continues to make remarkable advances as technology enters the operating theater and new antibiotics become available. the is factoring quadratics with a leading coefficient: 5x to the 2 power - 14x + 8 What are two common strategies that interest groups use to shape publicpolicy? What is the answer to this 2(x-5)-6=-18x=___ what are the three products of celullar respiration If you lived in Mesopotamia between 3500 BCE and 300 BCE, how might the Tigris and Euphrates rivers have impacted your daily life? The map might help support your thinking. Write or draw your response in the box below. Which of the following best explains how the rise of machinery created an unfriendly relationship between industrialists and their employees?A. The industrialist earned his income from the work of others.B. There was a lack of unions.C. The employees were underpaid. Inside the chestinverted sentence? HELP ASAP OTS DUE IN 5 MINUTES!!!!Find the slope of the line.0-50 -1O 1None of the above