A car started its motion from rest and accelerated for 7 seconds, with the acceleration of 3 m/s2. Then it was moving with a constant velocity for 8 seconds. What was the velocity of the car after 7+8 seconds?
PLEASE HELP ME

Answers

Answer 1
This is the answer hope you get it :)
A Car Started Its Motion From Rest And Accelerated For 7 Seconds, With The Acceleration Of 3 M/s2. Then
Answer 2

Answer:

Kejlshkdhh4hrbrldbd


Related Questions

how is kinetic energy is stored​

Answers

Answer:

Explanation:

Kinetic energy can be stored. For example, it takes work to lift a weight and place it on a shelf or to compress a spring. ... Kinetic energy can also be transferred from one body to another in a collision, which can be elastic or inelastic. One example of an elastic collision would be one billiard ball striking another.

Explanation:

Kinetic energy can be stored. For example, it takes work to lift a weight and place it on a shelf or to compress a spring. ... Kinetic energy can also be transferred from one body to another in a collision, which can be elastic or inelastic. One example of an elastic collision would be one billiard ball striking another.

Which friction static friction, kinetic friction, or air friction? Can be more than one response.
Gripping friction.
kinetic friction
air friction
static friction

Answers

Answer:

Kinetic Friction

Explanation:

Kinetic friction acts opposite the object's sliding direction. Kinetic friction always opposes the object's sliding direction.

Kinetic energy or friction

Your friend tells you “I no the moon does not rotate because we always see the same side.” do you agree or disagree with your friend? Write up what you would say to your friend to show why you agree or disagree with them. (THIS IS URGENT I REALLY NEED HELP WITH THIS BECAUSE I DONT KNOW HOW TO EXPLAIN)

Answers

Answer:

no the moon does not rotate it only goes in circle just like the sun so I disagree with your friend

Bob rides his bicycle on a bike path that is 1000 meters long to get his house that is due east of the bike path. If Bob take 150 seconds then...
What is his speed?

What is his velocity?​

Answers

Answer:

6.6 mph is the answer because u had to divide it

Moral Dilemma A man is sitting at home worrying about the fact that his daughter needs a major surgery in order to continue living, but he does not have the money to pay for it. He has asked family and friends to help with the cost of the surgery, but he was only able to raise about a quarter of what the surgery costs. He then remembers that he has power of attorney (i.E., control over someone else's finances/legal issues) for his out-of-touch-with-reality, but healthy, 85-year-old father. The man could, without anyone knowing, use his father's money to pay for the surgery. However, this would leave his father with only one year of living expenses. The man decides to take his father's money for his daughter's surgery. Should the man have done that? Why?

Answers

Answer:

Mostly with aid of Kohlberg 's moral growth theory, I clarify this answer, which would also be separated into three stages under which this particular problem is illustrated below.

Explanation:

Pre conventional Stage:

The daughter's father would think about either the penalty during that point if he commits any wrongdoing or breaches laws to save her daughter. But another way to make that happen for surgery is that a person cares about either the legislation and rules as well as the significance of respecting them throughout the pre-conventional process. He will also attempt to establish its insight into solving these problems.

Conventional Stage:

As per the traditional process of the spiritual psychosocial development of Kohlberg, her father would think of civilization because there are conventions that unless he borrows money of his dad again for the procedure of their daughter, culture would label him greedy or prejudice against him to pay the profits of his father despite his consideration.

Post conventional Stage:

As per this argument, he might determine for her child as well as father in his philosophy including perspectives, which means that his father is not in the situation of requesting credit, but because he's in a position to give a recommendation, therefore he certainly gives authorization rescue her grandchildren even though she is small and has several activities to do in hers life. And subsequently, with emerging profits, he will take care of his father as well as daughter, and nowadays focus says their daughter wants treatment to recover.

Which one of Newton's laws of motion is the most important?

Answers

Answer:

I think it is the second law

Please help ASAP WILL GIVE BRAINLIEST

why is it important to use the correct number of significant digits when reporting the results of an experiment
A. So other scientist can see how spread out your data are
B. So other scientists can see how many separate trials you preformed
C. So other scientists can compare their experimental results with yours
D. So other scientistcan see how precise your measurements were

Answers

Answer:

D

Explanation: It makes the most sense. Plz mark brainliest

Answer:

D

Explanation:

So other scientist can see how precise your measurements are

Which is the best estimate for the width of a typical adult hand?

Answers

Answer:

About 4-5in

Explanation:

A warm-up is the exact same thing as a flexibility workout

True
False

Answers

false :) ✨ got you my g

Answer:

false

Explanation:

did the test this is correct

Whats the atmosphere?

Answers

Answer: The atmosphere of Earth is the layer of gases, commonly known as air, retained by Earth's gravity, surrounding the planet Earth and forming its planetary atmosphere.

Explanation:

Two fish swimming in a river have the following equations of motion:

X 1 = - 6.4 m + (- 1.2 m/s) t

X 2 = 1.3 m + (- 2.7 m/s) t

Which fish is moving faster? ​

Answers

Answer:

The second fish, X2, is moving faster than the first fish, X1

Explanation:

The given parameters for the equation of motion of the fishes are;

X1 = -6.4 m + (-1.2 m/s)×t

X2 = 1.3 m + (-2.7 m/s)×t

The given equation are straight line equations in the slope and intercept form, where the slope is the speed and in m/s and the intercept is the starting point of swimming of the fishes

For the first fish, the intercept = -6.4 m, the slope = the  speed = -1.2 m/s

For the second fish, the intercept = 1.3 m, the slope = the  speed = -2.7 m/s

Whereby the fishes are swimming in the opposite direction of the measurement of length, we have;

The magnitude of the speed of the second fish [tex]\left | -2.7 \ m/s \right | = 2.7 \ m/s[/tex], is larger than the magnitude of the speed of the first fish [tex]\left | -1.2 \ m/s \right | = 1.2 \ m/s[/tex]

Therefore, the second fish, X2, is moving faster than the first fish, X1.

HURRY! Please!

How do the lights in a series circuit behave when one bulb burns out?

O The rest of the bulbs continue to shine at maximum brightness.

OThe rest of the bulbs continue to shine at a lower brightness.

OThe rest of the bulbs continue to shine at a higher brightness

OThe rest of the bulbs stop shining and shut off.​

Answers

Answer:

D. The rest of the bulbs stop shining and shut off.

Explanation:

When one bulb  in a series circuit  burns, out, the rest of the bulbs stop shining and shut off.​ Option D is correct.

What is an electric bulb?

An electric bulb is a gadget that uses electricity to create visible light. It is the most popular type of artificial lighting and is necessary for modern society.

The light bulb is connected to a switch in a parallel configuration. The switch is open, which means there will be a lot of resistance and no current will flow via this route.

Across the parallel connection, the battery would create the same potential difference. Because the current would not go via the open switch, it would instead flow through the light bulb, causing it to illuminate.

When one bulb  in a series circuit  burns, out, the rest of the bulbs stop shining and shut off.​

Hence, option D is correct.

To learn more about the electric bulb, refer to the link;

brainly.com/question/4723473

#SPJ2

if two objects are repelled from each other which force most likely caused this?

A. gravitational

B. weak nuclear

C. electromagnetic

D. strong nuclear

Answers

C. electromagnetic

Answer:

it's C! electromagnetic

Explanation:

average velocity of 6 km/h. How many kilometers can she walk in three hours?

Answers

Answer:

18 km

Explanation:

The answer is 18 km an hour

6. Most things you use every day are: a.compounds b. elements c. mixtures​

Answers

Answer: B. Elements

Explanation:

Most things we use everyday are compounds which are composed of two or more elements.

What are compounds?

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

They have a unique chemical structure held together by chemical bonds Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.

Learn more about compounds,here:

https://brainly.com/question/13516179

#SPJ2

The concept of "magnetisme animal" implied which of the following?
A. Most animals are magnetically conductive.
B. A person's health is related to their pets.
C. Every person has a raw, magnetic energy.
D. Vegetarians lack essential curative properties.

Answers

Answer:

C.

Every person has a raw, magnetic energy.

Explanation:

Yes, I can confirm this is correct, I got 100% on the quiz edge 2020

have a great day !

The concept of "magnetism animal" implied  that every person has a raw, magnetic energy. Hence option C is correct.

What is magnetic energy?

Magnetic energy is defined as the shifting of the electrons' charge in various particles. Magnetism is the force that magnets employ to either attract or repel one another. Electric charges in motion are what generate magnetism.

Supposedly invisible or mysterious energy known as "animal magnetism" is claimed to affect people. Franz Mesmer, a German physician, used the term "animal magnetism," also known as mesmerism, to describe what he believed to be an innate natural power that all living things, including people, animals, and plants, had.

Thus, the concept of "magnetism animal" implied  that every person has a raw, magnetic energy. Hence option C is correct.  

To learn more about magnetic energy, refer to the link below:

https://brainly.com/question/355868

#SPJ2

i really need help please just answer at least one

Answers

Answer:

9) a = 25 [m/s^2], t = 4 [s]

10) a = 0.0875 [m/s^2], t = 34.3 [s]

11) t = 32 [s]

Explanation:

To solve this problem we must use kinematics equations. In this way we have:

9)

a)

[tex]v_{f}^{2} = v_{i}^{2}-(2*a*x)\\[/tex]

where:

Vf = final velocity = 0

Vi = initial velocity = 100 [m/s]

a = acceleration [m/s^2]

x = distance = 200 [m]

Note: the final speed is zero, as the car stops completely when it stops. The negative sign of the equation means that the car loses speed or slows down as it stops.

0 = (100)^2 - (2*a*200)

a = 25 [m/s^2]

b)

Now using the following equation:

[tex]v_{f} =v_{i} - (a*t)[/tex]

0 = 100 - (25*t)

t = 4 [s]

10)

a)

To solve this problem we must use kinematics equations. In this way we have:

[tex]v_{f} ^{2} = v_{i} ^{2} + 2*a*(x-x_{o})[/tex]

Note:  The positive sign of the equation means that the car increases his speed.

5^2 = 2^2 + 2*a*(125 - 5)

25 - 4 = 2*a* (120)

a = 0.0875 [m/s^2]

b)

Now using the following equation:

[tex]v_{f}= v_{i}+a*t\\[/tex]

5 = 2 + 0.0875*t

3 = 0.0875*t

t = 34.3 [s]

11)

To solve this problem we must use kinematics equations. In this way we have:

[tex]v_{f} ^{2} = v_{i} ^{2} + 2*a*(x-x_{o})[/tex]

10^2 = 2^2 + 2*a*(200 - 10)

100 - 4 = 2*a* (190)

a = 0.25 [m/s^2]

Now using the following equation:

[tex]v_{f}= v_{i}+a*t\\[/tex]

10 = 2 + 0.25*t

8 = 0.25*t

t = 32 [s]

Which sentence describes Newton's first law?
A. Forces always come in pairs that have the same magnitude.
B. The action force applied by one object to another is opposite in
direction to the reaction force.
C. It takes a larger net force to accelerate an object at a greater rate.
D. Unbalanced forces cause an object to move.
SM

Answers

[tex]\Large{\red{\bf{\blue{\dag} Answer:-}}}[/tex]

Newton's First Law of Motion :

An object stays in rest or in uniform motion unless and until compelled by an external unbalanced force . This is also known as " Law of Inertia " .

Here this statement is best represented by the statement : Unbalanced forces cause an object to move. [ option c ]

More to know :-

Newton's 3 laws of motion :-

Newton's First Law of Motion :-

It states that an object stays in rest or in uniform motion unless and until compelled by an external unbalanced force . This is also known as " Law of Inertia " .

Ex - (i) We tend to fall backwards while standing in the bus , when it starts suddenly.

(ii) We tend to fall forward while standing in the bus , when it stops suddenly.

Newton's Second Law of Motion :-

It states that the rate of change of momentum is directly proportional to the applied force in the direction of the force . That is ∆p [tex]\propto[/tex] Force .

Ex - (i) When we push car & a truck with same force the car will have Greater acceleration due to less mass . (Imaginary case ).

(ii) We feel easy to push a empty cart than a full cart .

Newton's Third Law of Motion :-

It states that every action has equal and opposite reaction .

Ex - (i) We are able to walk on ground due to Newton's third law of motion .

(ii) When we push wall it also applies equal and opposite force .

"Unbalanced forces cause an object to move " is the sentence that describes Newton's first law.

Describe Newton's first law.

   A body remains in the state of rest or uniform motion in a straight line unless and until an external force acts on it.

      The object is to be rest if the velocity and acceleration are zero.  When an object is in motion, velocity is not equal to zero (v ≠ 0) but acceleration (a = 0) is equal to zero. Therefore, the object will continue in motion with constant velocity in the same direction.

Example:

      If we jump from a bus while moving, our body will be like still moving in the same direction of the vehicle. When your feet hit the ground, the grounds act on your feet and stop moving. You will fall because the upper part of your body didn't stop and you will fall in the direction you were moving.

     If the object have the greater mass, then the object will have more inertia. Forces can change the object's motion.

Hence, Option D is the correct answer.

Learn more about Newton's first law,

https://brainly.com/question/974124

#SPJ5

An object with a charge of 1.2 C is located 4.5 m away from a second object that has a charge of 0.36 C. Find the electrical force that the objects exert on each other. Use 8.988×10 N⋅m2/C2 for the value of Coulomb's constant. Give your answer to two decimal places.

Answers

Answer:

[tex]1.917*10^8\ N[/tex]

Explanation:

Coulomb's law states that the electric force between two charges is directly proportional to the product of the two charges and inversely proportional to the square of the distance between them. It is given by the formula:

[tex]F=k\frac{q_1q_2}{r^2}\\ \\q_1=first\ charge = 1.2C,q_2=second\ charge=0.36C,k=coulomb\ constant=8.988*10^9 N.m^2/C^2, r=distance=4.5m,F=force\\\\F=8.988*10^9*\frac{1.2*0.36}{4.5^2} =1.917*10^8\ N[/tex]

Help PLZ ;)

Which of the following statements is true about the force of gravity:
(A)The Force of gravity between two objects is directly related to the mass of the largest object.
(B)The force of gravity between two objects is directly related to the product of the object’s masses.
(C) The force of gravity between two objects is inversely related to the mass of the largest object.
(D) The force of gravity between two objects is inversely related to the product of the object’s masses.

Answers

Answer:

I believe it qould be A) The Force of gravity between two objects is directly related to the mass of the largest object.

Explanation:

why is a 5 rupees coin attracted by a magnet? name the metal present in the coin​

Answers

Hey Mate

See a coin is attracted bcoz he it has a metal names iron Which is easily attracted by the magnets

Hope, you fell my answer Helpful ( ◜‿◝ )♡

The new metal in the coin is Ferritic Stainless Steel
The (old) metal in the coin is Cupro-Nickel

What is the most effective way to breathe during strength training?

Answers

You might be tempted to hold your breath while you're lifting weights. Don't hold your breath. Instead, breathe out as you lift the weight and breathe in as you lower the weight.

PLEASE HELP!!

A person is traveling at 5m/s for around 20 minutes. how much distance did he cover? hint: change minutes to seconds.

Answers

6000 bc there are 1200 seconds in 20 min

.

Answer in units of N.

Answers

There is nothing to answer because there is no question

4. Hijackers are taking over a plane, They tell the pilot to get to Spain as fast as possible. The plane goes from 900
km/hr (beginning speed) to 1140 km/hr (final speed) in just 6 seconds. What is the acceleration of the plane?

Answers

The acceleration is about 1457, because of the wind turbines and the way it’s going

Which information could a student determine from only the chemical formula of a protein

Answers

Answer:

the answer is (D) The number of atoms of each element in the protein

Explanation:

Answer:

Which information could a student determine from only the chemical formula of a protein

Which information could a student determine from only the chemical formula of a protein

Which information could a student determine from only the chemical formula of a protein

Explanation:

Which information could a student determine from only the chemical formula of a protein

Which information could a student determine from only the chemical formula of a protein

Which information could a student determine from only the chemical formula of a protein

What is the depth of the crater if the time is 6.3 s? An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/s2. To determine the depth of the crater, she drops a rock and measures the time it takes for it to HIT the bottom

Answers

Complete Question

An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/s2. To determine the depth of the crater, she drops a rock and measures the time it takes for it

to hit the bottom. If the time is 6.3 s, what is the depth of the crater?

Answer:

The depth is 32 m

Explanation:

From the question we are told that

  The  time is  t =  6.3 s

  The acceleration due to gravity is  [tex]g =  1.62 \  m/s^2[/tex]

 

Generally from kinematic equation

    [tex]s = ut + \frac{1}{2}  - at^2[/tex]

Here the u is the initial  velocity and the value is  0 m/s

      [tex]s = 0 + \frac{1}{2}  - (1.62) * (6.3)^2[/tex]

        [tex]s = 32 \ m [/tex]

   

List two objects here on Earth that are sources of radiant energy. How can you tell they emit radiant energy?

Answers


They glow and feel hot

Please help!! The graph in the figure shows the position of a particle as it travels along the x-axis. What is the magnitude of the average speed of the particle between t = 1.0 s and t = 4.0 s?

Answers

The uniform movement allows to find the average speed, for which the correct answer is:

        B) 1.3 m / s

Kinematics studies the movement of bodies, establishing relationships between position, velocity and acceleration. In the special case that the acceleration is zero the motion is called uniform motion.

        v = [tex]\frac{\Delta x}{\Delta t}[/tex]

Where v is the velocity, Δx is the position variation and Δt is the time variation in the analyzed interval.

In this case

         v = [tex]\frac{2.0 - (-2.0)}{4.0\ -1.0}[/tex]

          v = 1.33 m / s

In conclusion using the uniform motion ratios we can find that the correct answer for the average velocity is

        B) 1.3 m / s

Learn more about average speed here:

https://brainly.com/question/17661499

Two objects gravitationally attract with a force of 18.0 N. If the mass of one of these objects is doubled, the new force of attraction is ____ N.

Two objects gravitationally attract with a force of 18.0 N. If the mass of both of these objects is doubled, the new force of attraction is _____ N.

Two objects gravitationally attract with a force of 18.0 N. If the mass of one of these objects is tripled, the new force of attraction is _____ N.

Two objects gravitationally attract with a force of 18.0 N. If the mass of both of these objects is tripled, the new force of attraction is ______ N.

Two objects gravitationally attract with a force of 18.0 N. If the mass of one of these objects is quadrupled, the new force of attraction is ____N.

Two objects gravitationally attract with a force of 18.0 N. If the mass of both of these objects is quadrupled, the new force of attraction is ____N

Answers

Sorry man I just started the whole energy mass neutrons and forcething but if you have any tips to help me I would appreciate it a lot
Other Questions
Help I need help asap You want a seat on the board of directors of Red Cow, Inc. The company has 260,000 shares of stock outstanding and the stock sells for $51 per share. There are currently 5 seats up for election. The company uses straight voting. How much will it cost you to guarantee that you will be elected to the board How many degrees are in a twelfth of a full turn? James gets $6 for his weekly allowance and spends $4 of it. His brother Mike gets $7 for his weekly allowance and spends $3 of it. Their mother's birthday is in 4 weeks. If they spend the same amount each week, how much money can they save together in that time to buy her present? 2 points Urbanization led to many of the ills of American society during the Progressive era.2 pointsTrueFalse anyone that knows it? Why did business leaders create new forms of ownership like monopolies cartels and trusts? when do meanders form in a river? A.youngB.oldC.matureD.rejuvenated 10 POINTSWhich tool can be used to measure the volume of a liquid to one decimal place?Options:a beakera graduated cylinderan Erlenmeyer flaska test tube Which is one of the transformations applied to the graph of f(x) = x2 to produce the graph of p(x) = 50 + 14x x2? a shift down 1 unit a shift left 7 units a shift right 1 unit a shift up 7 units Solve for x and y in the diagram below Liz is shipping a present to her friend. The shipping company charges one fee for the box, and another fee depending on the weight of the package. She pays $2 for the shipping box. The package weighs 9 pounds. If liz paid a total of $38, how much does the company charge per pound? Fahrenheit 451Write a paragraph on the imagery' from this text with evidence, as well as a second paragraph for the mood. Can someone help me with this I really need help What are some of the government requirements imposed on a public corporation that are not imposed on a private, closely held corporation? Discuss pros and cons of each HELP ASAP PLEASE!!!!!! The fraction whose denominator is 8 more than the numarator How many solutions does this system of equations have? What role reversal took place during the final illness of Eliezers father? Rs800 for 3 year at rate of 5 percent p.a