A chemical structure of a molecule includes the arrangement of atoms and the chemical bonds that hold the atoms together. The 2-HEPTANONE molecule contains a total of 21 bond(s) There are 7 non-H bond(s), 1 multiple bond(s), 4 rotatable bond(s), 1 double bond(s) and 1 ketone(s) (aliphatic).
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A dog is 60 m away while moving at a constant velocity of 10 m/s towards you. How Long will it be before the dog is close enough to your face?
Answer:
6 seconds
Explanation:
The answer is 6 because if the dog is going 10 m/s it will take 6 seconds to get from 60 meters away to you.
7. Your teacher has mixed salt, pepper, and water. Describe a procedure that you could use to separate this mixture. Be sure to list all of the materials you would need, your set up, and your expected results.
Answer:
hope this could help you
A cat sits on a high brance. what kind of energy does it possess? (APEX)
A. Kinetic
B. Chemical
C. Potential
D. Nuclear
Answer:
C. Potential Energy ...............
Which friction static friction, kinetic friction, or air friction? Can be more than one response.
Gripping friction.
kinetic friction
air friction
static friction
Mr. Mehta cut several 275-centimeter lengths of wallpaper to put in his
dining room. How many meters long was each piece of wallpaper?
Answer:
2.75 meters.
Explanation:
1 meter = 100 centimeters.
There are 275 centimeters.
275/100=2.75
So, each piece of wallpaper was 2.75 meters long.
Answer:
Think
Explanation:
How is acceleration related to force when mass is constant, according to Newton's second law of motion?
Answer:
According to Newton's second law of motion, acceleration is directly proportional to force. As the force increases (when mass is constant), the acceleration increases. This can be shown in the following formula.
[tex]f = ma[/tex]
[tex]a = \frac{f}{m} [/tex]
f = force
m = mass
a = acceleration
According to Newton's second law of motion, acceleration is directly proportional to the force.
What is Newton's second law of motion?According to Newton's second law of motion, an object's change in velocity is influenced by the force being applied to it. An object must accelerate in order to change its velocity. The rate at which an object's velocity alters over time is known as its acceleration.
Since both acceleration and force are vector quantities, the acceleration of an object is determined by the direction of the applied force. How much a net force will alter an object's velocity is described by Newton's second law of motion.
According to Newton's second law of motion, an object's acceleration is directly proportional to the force acting on it.
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4. Which type of compound is sugar?
A force of 500 N acts for a time interval of 0.001 second on an object of mass 0.20 kg that was initially at rest. Calculate the final velocity of the object after the force acts
Answer:
100
Explanation:
The final velocity of the object after the force acts is 2.5 meters per second.
To calculate the final velocity of the object after the force acts, we can use Newton's second law of motion, which states that:
Force = Mass × Acceleration
We need to find the acceleration of the object first. Since the object was initially at rest, its initial velocity (u) is 0 m/s.
The force acting on the object is 500 N, and the mass of the object is 0.20 kg. We can rearrange the equation to find the acceleration (a):
Acceleration (a) = Force / Mass
a = 500 N / 0.20 kg
a = 2500 m/s²
Now, we can use the kinematic equation to find the final velocity (v) of the object:
Final velocity (v) = Initial velocity (u) + (Acceleration × Time)
The initial velocity (u) is 0 m/s (since the object was initially at rest), and the time interval (t) is 0.001 second.
Final velocity (v) = 0 m/s + (2500 m/s² × 0.001 s)
v = 0 m/s + 2.5 m/s
v = 2.5 m/s
Hence, the final velocity of the object after the force acts is 2.5 meters per second.
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Kinematics
29. A car starts from rest and attains a velocity
of 40 m/s in 20 s. It maintains this velocity
for 30 s and then comes to rest in 25 s.
Calculate
a) the acceleration of the car;
b) the deceleration of the car,
c) the total distance covered by the car.
Answer:
a)
a = 2 [m/s^2]
b)
a = 1.6 [m/s^2]
c)
xt = 2100 [m]
Explanation:
In order to solve this problem we must use kinematics equations. But first we must identify what kind of movement is being studied.
a)
When the car moves from rest to 40 [m/s] by 20 [s], it has a uniformly accelerated movement, in this way we can calculate the acceleration by means of the following equation:
[tex]v_{f} = v_{i}+(a*t)[/tex]
where:
Vf = final velocity = 40 [m/s]
Vi = initial velocity = 0 (starting from rest)
a = acceleration [m/s^2]
t = time = 20 [s]
40 = 0 + (a*20)
a = 2 [m/s^2]
The distance can be calculates as follows:
[tex]v_{f} ^{2} = v_{i} ^{2}+(2*a*x)[/tex]
where:
x1 = distance [m]
40^2 = 0 + (2*2*x1)
x1 = 400 [m]
Now the car maintains its speed of 40 [m/s] for 30 seconds, we must calculate the distance x2 by means of the following equation, it is important to emphasize that this movement is at a constant speed.
v = x2/t2
where:
x2 = distance [m]
t2 = 30 [s]
x2 = 40*30
x2 = 1200 [m]
b)
Immediately after a change of speed occurs, such that the previous final speed becomes the initial speed, the new Final speed corresponds to zero, since the car stops completely.
[tex]v_{f} = v_{i}-a*t[/tex]
Note: the negative sign of the equation means that the car is stopping, i.e. slowing down.
0 = 40 - (a *25)
a = 40/25
a = 1.6 [m/s^2]
The distance can be calculates as follows:
[tex]v_{f} ^{2} = v_{i} ^{2} -2*a*x3\\[/tex]
0 = (40^2) - (2*1.6*x3)
x3 = 500 [m]
c)
Now we sum all the distances calculated:
xt = x1 + x2 + x3
xt = 400 + 1200 + 500
xt = 2100 [m]
Calculate: A baseball accelerates downward at 9.8 m/s2. The force pulling the ball downward is 1.4 N. What is the mass of the baseball?
[tex]\large{\underline{\underline{\red{\tt{\purple{\leadsto } AnsweR:-}}}}}[/tex]
Given : Acceleration of the ball is 9.8 m / s² . The pulling force is 1.4 N .
To Find : The mass of the ball .
Solution : It is given that a ball accelerates download with a acceleration of 9.8 m / s² . And the acting force is 1.4 N .
We know that , Force acting is equal to the product of mass and acceleration . That is ,
[tex]\boxed{\purple{\bf Force=mass\times acceleration}}[/tex]
⇒ Force = mass × accelerⁿ
⇒ 1.4 N = mass × 9.8 m / s²
⇒ mass = 1.4 N / 98 m/s²
⇒ mass = 14N / 98 m/s².
⇒ mass = 1/7 kg .
Hence the mass of the object is 1/7 kg ≈ 0.14 kg.
A toy car rolls down a hill starting from rest. After 4.2 seconds its velocity is 18 meters per second. What is the acceleration of the car ?
SOMEONE PLZ HELP :(
WILL MARK BRAILIEST
Answer: if this is the same question I think it’s 24
Explanation:
Use the drop-down menu to identify the state of matter represented by each imagine.
A.
B.
C.
D.
Answer:
a: gas
b: solid
c: liquid
d: plasma
Explanation:
Answer:
Each image displays a different state of matter.
Use the drop-down menu to identify the state of matter represented by each image.
A:
✔ gas
B:
✔ solid
C:
✔ liquid
D:
✔ plasma
Explanation:
got it right
Describe what happens to the particles of water when it boils.
Answer:
The liquid turns to a gas.
Explanation:
If a liquid is heated the particles are given more energy and move faster and faster expanding the liquid. Particles in the middle of the liquid form bubbles of gas in the liquid.
Newton's first law of motion is also called the law of
.
Answer:
The focus of Lesson 1 is Newton's first law of motion - sometimes referred to as the law of inertia. Newton's first law of motion is often stated as. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Explanation:
Answer:
Newton's first law is also called the law of Inertia.
Explanation:
What is inertia ?The property of a body by virtue of which it wants to remain in its position, is called inertia.
Mainly there ae three types of inertia-
Inertia of restInertia of motion Inertia of directionInertia was discovered by Galileo and it was modified by Newton.
What is Newton's first law of motion ?If a body is in motion or in rest, it wants to remain in its position unless any external force is applied.
Thus Newton's first law of motion is also called law of inertia.
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Whats the atmosphere?
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:
As light from a star spreads out and weakens, do gaps form between the photons?
Coulomb's law describes how the charge on and distance between two
particles affect the electric force between them. Which situation will result in
the two particles being attracted to each other?
The situation in which one particle has a positive charge and one has a negative charge will result in the two particles being attracted to each other.
What is Coulomb's law?It states that the force between two charged particles is directly proportional to the product of the magnitude of the charges and inversely proportional to the square of the distance between them.
Given is Coulomb's law which describes how the charge on and distance between two particles affect the electric force between them.
From the properties of charges, we know that the like charges repel and unlike charges attract each other. This means that two positive charges will repel each other and two negative charges will also repel each other. However, if one positive and one negative charge are brought closer to one another, than they will attract each other.
Therefore, the situation in which one particle has a positive charge and one has a negative charge will result in the two particles being attracted to each other.
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What two types of motion are the same in which they both are under the influence of gravity?
Answer:
Orbit and Gravity
Explanation:
May I have brainliest please I would appreciate it! Have a great day!
witch of the following questoons would you expect to see on an interest inventory
Answer: Do you like science experiments ? 1)
Would You enjoy reading a fashion magazine? 2)
Explanation:
A neutral atom of alluminum has 13 protons and how many electrons
Answer: also 13
Explanation: because there have to be an equal number of protons,neutrons,and electrons to make the atom stable.
The sphere that refers to Earth's water is called what?
Tge sphere that refers to Earth's water is Hydrosphere.
What is the energy of an object because of its potential and kinetic energies?
chemical energy
electrical energy
nuclear energy
mechanical energy
Answer:
It is D
Explanation:
mechanical
Answer:
it is D on edge
Explanation:
a swimmer can develop a maximum speed of 8m/s when he is swimming in a pool. calculate the time that is required to pass the distance of 15m
Answer:
2
Explanation:
* 22. Mmh A car is traveling along a straight road at a velocity of 36.0 m/s when its engine cuts out. For the next twelve seconds the car slows down, and its average acceleration is For the next six seconds the car slows down further, and its average acceleration is The velocity of the car at the end of the eighteen-second period is 28.0 m/s. The ratio of the average acceleration values is Find the velocity of the car at the end of the initial twelve-second interval.
Complete question is;
A car is traveling along a straight road at a velocity of 36.0 m/s when its engine cuts out. For the next twelve seconds the car slows down, and its average acceleration is For the next six seconds the car slows down further, and its average acceleration is The velocity of the car at the end of the eighteen - second period is 28.0 m/s. The ratio of the average acceleration values is a1/a2 = 1.5.
Find the velocity of the car at the end of the initial twelve - second interval.
Your answer
Answer:
30 m/s
Explanation:
To solve this, we will use Newton's first equation of motion;
v = u + at
Since we are dealing with acceleration ratio, let's make a the subject;
a = (v - u)/t
For the first 12 seconds and initial velocity u = 36 m/s, we have;
a1 = (v - 36)/12
For the remaining 6 seconds, initial velocity is the final velocity from the initial 12 seconds. Thus;
a2 = (28 - v)/6
We are given that a1/a2 = 1.5
Thus;
[(v - 36)/12]/[(28 - v)/6] = 1.5
(6/12)((v - 36)/(28 - v)) = 1.5
(v - 36)/(28 - v) = 1.5 × 12/6
(v - 36)/(28 - v) = 3
v - 36 = 3(28 - v)
v - 36 = 84 - 3v
4v = 120
v = 120/4
v = 30 m/s
Which information could a student determine from only the chemical formula of a protein
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
The air in a scuba tank is under more than 200 times the normal air pressure. Why should a filled scuba tank never be left in a hot car for an extended period of time?
Answer:
Burst open
Explanation:
it could create an explosion cause after some time the air wont be good anymore and staying inside a hot car is like someone sitting an oven it would burst open and create an explosion depending on the size of it
Theo is learning about sensation and perception. He is familiar with the five senses. He knows that the human sensory systems send information to the brain through the cranial nerves, but one sensory system sends information to the brain through the spinal nerves as well. Theo will recall which of our sensory systems can also send information to the brain through the spinal nerves? Select one: a. Taste b. Vision c. Hearing d. Touch
Answer:
Touch ( D )
Explanation:
The sense of touch can send information to the brain via the spinal cord and also in some cases the information sent by the sense of touch can as well be processed via the spinal cord
The Touch sensory system is made up of sense receptors which carry the information to be sent to the Central nervous system which the brain and the spinal cord is an essential part
Whether or not charges will move in a material depends partly on how tightly ______ are held in the atoms of the material.
Answer:
ELECTRONS
Explanation:
A dog is 60m away while moving at constant velocity of 10m/s towards you. Where is the dog after 4 seconds?
A moving object with a decreasing velocity covers distance during
each new second than it covered in the previous second.
A.the same
B.more
C.less