PLEASE RESPOND I NEED FAST THANK YOU GIVING LOTS OF POINTS WILL GIVE BRAINLIEST

PLEASE RESPOND I NEED FAST THANK YOU GIVING LOTS OF POINTS WILL GIVE BRAINLIEST

Answers

Answer 1

#1

The kinetic energy decreases

#2

This is because of law of conservation of linear momentum .

The momentum is conserved

So the velocity of ball decreases than before .

So kinetic energy also decreases

#3 and #4

Kinetic energy of the can increases as after the collision the velocity of the can increases so the kinetic energy also increases


Related Questions

A student wants to know: “How does the number of lightbulbs affect current in a series circuit?” Identify the independent and dependent variables in the experiment.

Answers

The number of  lightbulbs  in a series circuit will not affect the current flowing through them. The independent variable is resistance. The dependent variable is voltage.

What is current?

The current is the stream of charges which flow inside the conductors when connected across the end of voltage.

For the given set of series bulbs as resistors, the current flowing through all the bulbs will the same. Voltage is divided to each resistor.

From the Ohm's law, V =IR

R = V/I

Here, R is the proportionality constant. So, this is independent value.

The voltage difference across the resistors dependent on the current flowing through that resistance.

Thus, the number of  lightbulbs  in a series circuit will not affect the current flowing through them. The independent variable is resistance. The dependent variable is voltage.

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Which units are used to measure both velocity and speed? Select three options.
m/s
d/t
km/h
mph
lph

Answers

Answer:

m/s

km/h

mph

Explanation:

speed is measured with distance which does in velocity too that is why I chose this answer

As elements gain more electrons in their outer shells, their electrical
conductivity generally decreases. Which of the following explains this
phenomenon?

Answers

Electrical conductivity often decreases, when elements receive additional electrons in their outer shells. As a result of the valence shell being filled, the number of movable electrons decreases.

What is a mobile electron?

Electrons are mobile charges in the conduction band while holes are mobile charges in the valence band.

Current flow in a semiconductor is caused by charge carrier migration in both the conduction and valence bands.

Which creates a net motion of positively charged carriers in the same direction as the field and negatively charged carriers in the opposite direction as a result of the force.

The outermost electrons in metals are not bonded to each atom which is shared by many atoms. This decentralization is what allows metals to conduct electric currents.

Hence, the elements gain more electrons in their outer shells, and their electrical conductivity generally decreases.

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Explain why the atomic mass of an element is weighted average mass

Answers

Explanation:

The mass written on the periodic table is an average atomic mass taken from all known isotopes of an element. This average is a weighted average, meaning the isotope's relative abundance changes its impact on the final average. The reason this is done is because there is no set mass for an element.

If I bought 59 kids off the black market in a secret door in the stalls and I sell 21 kids then ask for 81 more then 12 off the kids runaway in speed of 6 miles and I get in my ice cream truck/van and forget 9 kids and 4 kids out run my ice cream truck/van and I catch 8 of them How Many Do I Have? I'll give a Brainlist.​

Answers

You will be left with 106 kids

Meaning of word problem

A word problem can be defined as a mathematical problem that is written in word or written in a sentence format.

In a word problem, the student is expected to decode the sentence into a mathematical expression before solving

In conclusion, You will be left with 106 kids

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In what direction will each of the wires below move?

Answers

Answer:

Explanation: ckeck this image

How many dogs can cross at one

Answers

1 dog can cross at one

One Affective way to develop the feeling function in one’s personality is to

A. Imagine how other people might feel in the situation
B. Plan out the details for each week
C. Socialize more with strangers
D. Consider the consequences of one’s actions

Answers

Answer:

A.

Explanation:

I think it’s a. Because, I normally think about how someone else feels if I want to say something.

x(t)=t^2-2t+1 when does it comes to rest?​

Answers

Answer:

x(t) = t^2 - 2 t + 1       given

v = dx / dt = 2 t - 2 = 0

t = 1  

It comes to rest after 1 second

1.33 kg of ice at 0.00 °C is added to 12.4 kg of water at 20.0 °C. What is the final temperature?

Answers

Answer:

Heat gain = Heat loss

Latent heat of fusion of water = 80 kcal/kg

Specific heat of water = 1 kcal /kg deg C

Heat gain = 1.33 * 80 + (12.4 + 1.33) T = 106 + 13.7 T

Heat Loss = 12.4 * (20 - T) = 248 - 12.4 ΔT

106 + 13.7 T = 248 - 12.4 T

26.1 T = 142

T = 5.4       final temperature

Answer: 10.310406 (works for acellus)

I tried to add an explanation but it wouldn't let me for some reason

Anyways watch the end of the video to see how to get the equation

When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. What type of change is it? Explain.

Best Answer will be marked as brainliest

Answers

[tex]\large{\underline{\underline{\pmb{\frak {\color {red}{Question:}}}}}}[/tex]

[tex] \sf \red{When \: baking \: soda \: is \: mixed \: with \: lemon \: juice, \: bubbles \: are \: formed \: with \: the \: evolution \: of \: a \: gas.}[/tex]

[tex]\large{\underline{\underline{\pmb{\frak {\color {blue}{Answer:}}}}}}[/tex]

When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. The gas is formed in the reaction is Carbon dioxide. [tex] CO_{2}[/tex] is formed.

The change which happened in this reaction is a chemical change.

[tex] \boxed{ \frak \green{Explanation}}[/tex]

Since, in chemical change we can't bring a substance to it's actual form how it was in earlier.

Examples: burning of paper is chemical, since we can't get the fine paper again after it is burnt.

Thus, the above reaction is also a chemical change, since we can't get back the lemon juice how it was earlier.

[tex] \boxed{ \frak \red{Brainlysamurai}}[/tex]

Study the image.

Which of the following choices best explains how the lever made the task easier?

The final force on the rock was the same as the original force from the person and the distance the rock traveled was smaller than the original distance the lever moved, so the total work decreased.

The final force on the rock was greater than the original force from the person and the distance the rock traveled was smaller than the original distance the lever moved, but the total work remained the same.

The final force on the rock was smaller than the original force from the person and the distance the rock traveled was greater than the original distance the lever moved, so the total work stayed the same.

The final force on the rock was greater than the original force from the person and the distance the rock traveled was the same as the original distance the lever moved, so the total work increased.

Answers

The final force on the rock was smaller than the original force from the person and the distance the rock traveled was greater than the original distance the lever moved, so the total work stayed the same.

What is the law of conservation of energy?

The law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another.

The total work done on the process will be conserved.

The lever is a simple machine which makes work easier by reducing the force applied to the load and increasing the distance traveled by the load.

Thus, the final force on the rock was smaller than the original force from the person and the distance the rock traveled was greater than the original distance the lever moved, so the total work stayed the same.

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the magnitude of the momentum of a car is 13,300 kg*m/s if it has a speed of 14 m/s what is the mass of the car?

Answers

950 kg. As p= mv So , m= p/v

Baseballs pitched by a machine have a horizontal velocity of 30 meters/second. The machine accelerates the baseball from 0 meters/second to 30 meters/second in 0.5 seconds. If a baseball has a mass of 0.15 kilograms, the force the machine exerts is______ newtons.

Answers

Answer:

65

Explanation:

For which type of pathogens do immunizations/vaccinations help prevent?

To reduce the risk of atherosclerosis, it is important to cut down on?

Answers

The pathogen that immunization helps to prevent is virus.

To reduce the risk of atherosclerosis cut down on saturated fatty foods.

What is immunization?

Immunization is defined as the prevention of pathogenic viral organisms from harming a living human host through the exposure of the host to an attenuated form of the virus to develop immunity prior to a future exposure.

Atherosclerosis is the deposition of fatty substances on the arterial wall leading to blocking of the blood vessels.

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sketch an electric field pattern around two identical negative point charges shown below in the figure of class 11 model question physics.​

Answers

Answer:

fv nfv f n f vjrkfv frnv thrfn htrfn vt

Explanation:

v ntv tfrv tn vtv jr4v t5o vtv tv tv

A marble rolls off a tabletop 1.15 m high and hits the floor at a point 4 m away from the tables edge in the
horizontal direction.
a. How long is the marble in the air?
b. What is the speed of the marble when it leaves the tables edge?
Im/s
C. What is its speed when it hits the floor?

Answers

A marble rolls off a tabletop 1.15 m high and hits the floor at a point 4 m away from the edge of the table in the horizontal direction,

t= 0.45 seconds.V=2.22m/sVT=4.95 m/s

This is further explained below.

What is its speed when it hits the floor...?

Generally, the equation for motion is mathematically given as

S= ut + 0.5at²

Therefore

y = Voy t + 0.5gt^2

1 = 0.5x 98 x 6²

1=4.9t^2

[tex]t=\sqrt{0.2041 }[/tex]

t= 0.45 seconds.

b) Horizontal motions are uniform.

V=Horizontal displacement/time

V=1/0.45

V=2.22m/s

C)

Vx: 2.22 m/s At bottom,

Vy² = Voy² + 2as

Vy² = 2x95x1

Vy² = 19.6

Total velocity

[tex]VT=\sqrt{( 2.22 m/)^2+19.6}[/tex]

VT=4.95 m/s

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What are you and the Australian Institute of Marine Biology trying to find out and 4. Why might it be important to find this information out

Answers

Answer:

Established in 1972 by the McMahon Government, the institute's primary function is research for sustainable use and protection of the marine environment. The Institute investigates topics from broad-scale ecology to microbiology.

please help and solve​

Answers

I am sorry I can not tell what the drawing is

Explanation:

Present an argument about the likely kinetic energy of the ball before and after the collision with the can.

Answers

An argument about the likely kinetic energy of the ball before and after the collision with the can is can remain the same, halved and completely transferred.

What does collision mean in physics?

In physics, we understand as a collision process the interaction between two or more bodies, initially free (that is, there is no interaction between them). Collision is usually divided into three categories: elastic collision, partially elastic collision and inelastic collision.

Analyzing for each of these cases we have that the kinetic energy before and after the collision will be:

elastic collision: Kinetic energy will be the same before and afterpartially elastic collision : the kinetic energy will be halved after the collision.inelastic collision: All the kinetic energy will be transferred to the other body after the collision.

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find potential at a point on the line , containing two charges " q " and " 4q " at a distance of " r " metres , where net E due to these charges is same.​

Answers

The potential at a point on the line will be,[tex]\rm E_{net}=\frac{5Kq}{r}[/tex].The net potential is the algebraic sum of the electric potential.

What is the electrical potential difference?

The amount of work performed in an electrical field to move a unit charge from one location to another is defined as the electrical potential difference.

In other terms, the potential difference is the difference in electric potential between two charged substances.

The traditional current flow is from positive to negative terminals, indicating the movement of positive charges in that direction.

[tex]\rm E_1 = \frac{Kq}{r} \\\\ E_2=\frac{K(4q)}{r}[/tex]

The potential at a point on the line is found as;

[tex]\rm E_{net}=E_1+E_2 \\\\\ E_{net}=\frac{Kq}{r} +\frac{K(4q)}{r} \\\\E_{net}=\frac{5Kq}{r}[/tex]

Hence, the potential at a point on the line will be,[tex]\rm E_{net}=\frac{5Kq}{r}[/tex]

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Question 4 (2 points)
Which one of the following is not a leg muscle?
a) Teres Major muscle
b) Plantaris tendon
c) Sartorius muscle
d ) Semimembranosus muscle

Answers

The answer is a) Teres Major Muscle

A is the correct answer

Which of these units is most appropriate to use when measuring the mass of a person?

Answers

The SI unit of mass is the kilogram

How do a neutron and a proton compare?
O
A. The proton has much greater mass.
O
B. The proton is farther from the nucleus.
O
C. They have opposite charges.
O
D. They are both found inside the nucleus.

Answers

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

The Correct choice is : D

Neutrons and Protons are collectively known as Neucleons because they are found in nucleus of the cell and they have almost equal mass, [ but neutron has slightly greater mass than proton ]. also, Neutrons are neutral particle with no charge on them, where as protons have positive charge on them. making nucleus positively charged altogether ~

Answer:

Option D

Explanation:

Remember that neutrons and protons both are found inside the nucleus.Electrons wander around themProtons have positive chargeElectrons have negative chargeNeutrons are neutral

The heat of fusion for ice at 0°C is 333.7 kJ/kg, the specific heat of water 4.186 kJ/kg °C, and the heat of vaporization of water
at 100°C is 2,256 kJ/kg. What is the energy needed to vaporize 100 grams of ice at starting at 0°C?
Select one:
500 kJ

Answers

The energy needed to vaporize 100 grams of ice at starting at 0°C is  300.83 kJ.

What is heating?

When the temperature is increased , the body or particle is said to be heating.

Given is the mass of water =100g =0.1 kg, Latent heat of fusion L = 333.7 kJ/kg,

Energy required to melt ice into water at 0°C.

Q₁ = mL

Q₁ = 0.1 x 333.7

Q₁ = 33.37 kJ

Energy required to heat water from  0°C to 100°C is

Q₂ = mCΔT

Q₂ = 0.1 x 4.186 x 100

Q₂ = 41.86 J

Energy required to vaporize at 100°C is

Q₃ = m Lv

Q₃ = 0.1 x 2256

Q₃ = 225.6 kJ

Total heat to vaporize 100 grams of ice at starting at 0°C is

Q = Q₁ +Q₂ +Q₃

Q = 33.37 +41.86 +225.6

Q = 300.83 kJ

Thus, the energy needed to vaporize 100 grams of ice at starting at 0°C is  300.83 kJ

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Explain between the cause of high probability of accidents of loaded vehicles in over speed on the basis of the first law of motion.​

Answers

Cause of high probability of accidents of loaded vehicles in over speed effected by momentum on the basis of first law of motion.

What does Newton's first law say?

When we are standing inside a bus and it brakes abruptly, due to inertia, we are thrown forward. When a car is going around a curve it is necessary for a force to act, otherwise the car will go in a straight line.

the cause of high probability of accidents of loaded vehicles in over speed occurs large amount of momentum.

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Perform an experiment in which you roll a ball 43,700 cm before it comes to a stop. Write this measurement in scientific notation

Answers

The number 43,700 cm when written by the use of the scientific notation will be written as 4.37 * 10^4 cm.

What is the scientific notation?

The scientific notation involves writing a number in such a way that it does not involve a lot of digits. This methods helps us to save space that would have been used to write long digits.

Hence, the number 43,700 cm when written by the use of the scientific notation will be written as 4.37 * 10^4 cm.

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Which statement describes a chemical property related to the
particles that make up the material?
O
A. Magnesium oxide crystals are hard and brittle because
they are made up of atoms that combine by ionic bonding.
O B. Iron is a good conductor of electricity because the metallic
bonds between its atoms allow electrons to move freely.
O c. Aluminum has a relatively low density because its atoms
have fewer protons than the atoms of most other metals.
O D. Aluminum is relatively inert because its atoms do not react
readily with molecules in the atmosphere.

Answers

Iron is a good conductor of electricity because the metallic bonds between its atoms allow electrons to move freely.

What is Chemical property?

These are the features which can be observed when the substance undergoes a chemical reaction.

Good conductor of electricity is a chemical property and is common among metals as a result of the metallic bonds which is why option B was chosen.

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Three sticks are arranged to form a right triangle. If the lengths of the three sticks are 0.47 m, 0.62 m and 0.78 m, what are the three angles of the triangle?

Answers

The angles in the triangle are 91 degrees, 53 degrees and 36 degrees respectively.

What is the cosine rule?

From the cosine rule we know that;

c^2 = a^2 + b^2 - 2abcosC

Since;

a = 0.47 m

b =  0.62 m

c =  0.78 m

Then;

(0.78)^2 = (0.47)^2 + (0.62)^2 - 2(0.47 * 0.62)cosC

0.61 = 0.22 + 0.38 - 0.58 cosC

0.61 - ( 0.22 + 0.38) = - 0.58 cosC

0.01 = - 0.58 cosC

C = cos-1(0.01/-0.58)

C = 91 degrees

Using the sine rule;

b/Sin B = c/Sin C

0.62/sinB = 0.78/sin 91

0.62/Sin B = 0.78

B = sin-1 (0.62//0.78)

B = 53 degrees

Angle A is obtained from the sum of angles in a triangle;

180 - (91 + 53)

A = 36 degrees

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An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to the
right. What is the displacement of the object?
1
5
7
13

Answers

Answer: 5

Explanation: If you use a real graph it could be easier to check, but here’s it the easy way.

You start at 0, add 3 as you are going right on the right , subtract 4 as you are going left, then again add 6 as you are going right, and you should get 5.

0+3= 3

3-4= -1

-1+6= 5

<—————->
0
+3. =3
-4. = -1
+6 = 5

the answer is 5
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