While traveling along a highway a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the automobile’s acceleration?
Answer:
-0.75 [tex]m/s^{2}[/tex]
Explanation:
a = [tex]\frac{v2-v1}{t}[/tex] = [tex]\frac{15 m/s - 24m/s}{12s}[/tex] = -0.75 [tex]m/s^{2}[/tex]
Hope this helps!!
ehehe can someone help me answer plz Students collected weather data every two hours between 9 A.M. and 3 P.M., as shown in the table.
*picture*
Based on this data, what type of weather should the students predict for later in the afternoon?
windy with precipitation
calm with clearing skies
hot and dry
freezing rain and snow
During which phase change will two grams of water
release 668 joules of heat energy?
A. melting
B.
freezing
C.
vaporization
D. condensation
During the phase change of 2 grams water to solid-state, there has been the release of energy, and the process will be freezing. Thus option B is correct.
The release of the amount of heat by the sample has been able to change the state of the matter from the loosely bounded to the combat state.
The melting has been the process of conversion of solid-state to a liquid state. In the process, there has been the absorption of the energy for the rupture of the bond.The freezing has been the conversion of liquid state to solid-state. The process requires a little amount of energy for the conversion.The vaporization requires the absorption of energy and converts the liquid state to the vapor state.The condensation has been the process of conversion of the vapor to the gaseous state. The process releases energy in large amounts.Thus, during the phase change of 2 grams water to solid-state, there has been the release of energy, and the process will be freezing. Thus option B is correct.
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Good Morning This is a question I need help on pleas help
Answer:
S.
Explanation:
North and South must always be opposite of each other.
The cut end of the short piece of the magnet will be labeled as South (S). Therefore, option (B) is correct.
What is a magnet?A magnet can be described as a material that produces a magnetic field and this magnetic field is responsible for the notable property of a magnet. Properties such as a force that pulls ferromagnetic materials, such as iron, steel, cobalt, etc., and attracts or repels other magnets.
A permanent magnet can be described as an object made from a material that is magnetized and generates its own magnetic field. Materials that can be magnetized, are strongly attracted to a magnet, are called ferromagnetic and include the elements iron, nickel, and cobalt.
The poles of a bar magnet cannot be separated by just cutting the magnet, the resulting pieces of magnet form a new set of North and South poles within them. Therefore, the small piece of the magnet will also have a set of South and north poles.
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what are the compound properties of sugar?
Why are ions charged particles?
Answer:
An ion is a charged atom or molecule. It is charged because the number of electrons do not equal the number of protons in the atom or molecule. An atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.
Explanation:
hope it's right
science help please 20 points
Answer:
1. Earth
2. Sun
3. Sun
4. Earth
5. Earth
6.Sun
7. Earth
Explanation:
I'm a lil sus of 3 and 6 but I'm pretty sure it's right.
The solar system is part of the Milky Way Galaxy. How is that galaxy
part of a larger system?
Answer:
Our Sun which is a huge star and all the planets around it are part of the Milky Way Galaxy. These stars form a large disk whose diameter is about 100,000 light years. Our Solar System is about 25,000 light years away from the center of our galaxy. We live in the suburbs of our galaxy.
Explanation:
There are various types of studies. Because the Milky Way is a large barred spiral galaxy, it is known to be part of a larger system.
What is a galaxy?A galaxy is a massive mass of gas, dust, and billions of stars and solar systems held together by gravity.
There are various types of research. The Milky Way is known to be part of a larger system because it is a large barred spiral galaxy. The Milky Way Galaxy contains all of the stars that can be seen in the night sky.
Our Solar System is known to be made up of our star, the Sun, and its orbiting planets, which include the Earth as well as numerous moons, asteroids, and so on.
Our Sun is thought to be one of hundreds of billions of stars in our Milky Way Galaxy. The universe is said to consist of all galaxies, which have been discovered to number in the billions.
Thus, this way, in which the galaxy part of a larger system.
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Help me please
( I'll give brainlist to whoever answers right)
If two objects have different temperatures, heat will flow from the warmer object to the cooler one until _________________________.
A. one reaches a temperature of zero
B. one runs out of energy
C. they reach the same or equal temperature
D. one is absorbed into the other
Make a list of 7 observations about what happens in the night vs. day.
Answer:
At night animals like owls and bats will go out and hunt.
When its nighttime It will get cooler out because the sun is on the other side of the earth.
During the day most animals are awake.
Answer:
Night:
1. All the stars (except the Sun) are in the sky
2. The sky is usually black
3. It's usually colder at this time
Day:
4. The sky is usually blue in the morning
5. The clouds are only visible in the day
Both:
6. It can rain at either time
7. The sun and moon are both usually glowing
Explanation:
Carbon monoxide (CO) _____.
is an element
is made of two oxygen atoms and two carbon atoms
increases in volume when compressed
is a compound made of oxygen and carbon
Answer:
the last one
Explanation:
All of the other ones are false
Answer:
is a compound made of oxygen and carbon
Explanation:
Please help! Super easy, I just forgot!
Fill in the two blanks
Answer:
nucleuas
Explanation:
Jaden has a mass of 45 kilograms on Earth. Jupiter has more gravity than the Earth. On Jupiter, Jaden's mass will be _____.
45 kilograms
more than 45 kilograms
less than 45 kilograms
Answer:
The mass of the object remains same everywhere.It does not change in any of the location. Jaden's mass will be 45 kg on Jupiter.
Explanation:
Jill and Susan were absent when the instructions were given for the lab investigation. They gathered their materials and watched their classmates see what to do, not taking the time to read the instructions. Explain how Jill and Susan violated safety procedures.
Answer:
They violated safety procedures by not reading the instructions, which could have put everyone in danger because they're dealing with chemicals and if you mix the wrong chemicals together it could explode or release some type of gas that is not good to breathe in.
Explanation:
They violated safety procedures by not reading the instructions, which could have put everyone in danger because without knowing they are using chemicals and it may lead to explosion.
What are the safety measures that should be taken in laboratory?There are several safety measures that should be taken while performing an experiment in lab such as avoid drink and food while working in laboratory and wear PPE kit to keep yourself safe.
Never work lonely in the lab because this condition will turn into danger situation as suppose a person works lonely and due to reaction of some chemical the person become unconsious than there is no one to help him.
Always wear gloves, PPE kit, proper shoes, lab coat of full sleeves with safety goggles. All these things will helps to keep a person safe in lab while experiment.
Therefore,they violated safety procedures by not reading the instructions, which could have put everyone in danger because without knowing they are using chemicals and it may lead to explosion.
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no bull bro report your comment
Answer:
B
Explanation:
KRN2OANDNAKKANSOEMWNENOWKANSJW No explaining needed lol
Answer:
I think B may be right answer
Into which energy can potential energy be transformed as an object moves?
Answer:
kinetic energy
Explanation:
anything moving contains kinetic energy and anything standing still has potential.
I WILL GIVE BRAINLIEST TO CORRECT ANSWER AND EXTRA POINTS ALSO
PLS ANSWERRRR!!
Choose the incorrect statement with respect to an acid:
(A) Acid liberates hydroxyl ions in an aqueous solution.
(B) Acid has pH < 7 at 298 K.
(C) Acid tastes sour.
(D) Oxalic acid is present in spinach.
Answer:A
Explanation:
Answer:
A. Acid liberates hydroxyl ions in an aqueous solution
Explanation:
When dissolved in water, acids release hydrogen (H⁺) or hydroxide (H₃O⁺) ions. Hydroxyl (OH⁻) ions are released when a base dissolves in water.
Hope that helps.
A parachute on a racing dragster opens and changes the speed of the car from 85 m/s to 45 m/s in a period of 4.5 seconds. What is the acceleration of the dragster?
Answer:
- 8.89 [tex]m/s^{2}[/tex]
Explanation:
[tex]\frac{(Vf-Vo)}{time}[/tex] = [tex]\frac{(45-85 m/s)}{4.5s}[/tex] = - 8.89 [tex]m/s^{2}[/tex]
Answer:
L I'll help u
Explanation:
If a Ferrari, with an initial velocity of 10 m/s, accelerates at a rate of 50 m/s/s for 3 seconds, what will its final velocity be?
Answer:
160 ms
Explanation:
Answer:
we will use the formula
v = U+AT
Explanation:
V=U+AT
AS GIVEN,
U=10m/s
accelaration=50m/s
time=3seconds
so answer is,
v=10 + 50x3
v=10+150
v= 160m/s
Help meh...
Assume the can contains cola. The cola is an example a(n)
A. atom
B. element
C. mixture
D. pure substance
What does it mean for a gene to be dominant?
the mass of an average grain of table salt in a sample is about 3x10^-4, and the mass of an average grain of rock salt in a sample is about 1.2x 10^- 2, convert both masses to standard notation
standard notation means in the number written in only number digits.
- to convert these multiply the two numbers given. FYI these are given in scientific notation, which is used so that numbers are easier to write.
remember: if the exponent is negative, you have move the decimal to the right. whereas, if the exponent is positive, you have to move the decimal to the left.
3 X 10^-4 --> move 4 places to the right.
answer - table salt: 0.0003
1.2 X 10^-2 --> move 2 places to the right.
answer - rock salt: 0.012
In every chemical reaction that produce energy,
react with
A. 1 glucose, 6 oxygen
B. 6 glucose, 6 oxygen
C. 1 glucose, 3 oxygen
D. 3 oxygen ,3 glucose
Answer:
D
Explanation:
Hope you get it right
I need help this is due tomorrow
Answer:
it's spring tide.
Explanation:
The smallest tidal ranges are less than 1 m (3 feet). The highest tides, called spring tides, are formed when the earth, sun and moon are lined up in a row. This happens every two weeks during a new moon or full moon. Smaller tides, called neap tides, are formed when the earth, sun and moon form a right angle.
Hope it will help :)❤
Which of the following is a compound?
A Water
B Oxygen
C Chlorine
D Aluminum
Explanation:
A compound is made out of 2 or more elements.
Oxygen (O2), Chlorine (Cl2) and Aluminium (Al) are all elements.
Water (H2O) is made out of hydrogen and oxygen, therefore water is a compound. (A)
There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, the correct option is option A that is water.
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.
An ionic compound is a metal and nonmetal combined compound. Ionic compound are very hard. They have high melting and boiling point because of strong ion bond. Water is a compound among all the given options. Water exits in three states solid (ice), liquid (water) and vapour.
Therefore, the correct option is option A.
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Which statement describes the moment magnitude scale?
It measures only small earthquakes.
It collects data using a seismograph.
It shows only the strength of seismic waves that were produced.
It determines the amount of damage caused by an earthquake.
Answer:
It's B
Explanation:
It collects data using a seismograph.
When a species population no longer has traits adapted to its environment, the species will
A: be driven to extinction.
B: mutate to produce more favorable traits.
C: breed with stronger species.
D: make the environment more suitable.
I think that A or C is the answer.
Please help me with this!
Answer:
10. F
11. A
12. B
13. C
14. G
15. A
16. F
17. B
18. D
19. E
20. B
Explanation:
im sorry
ik some are probably incorrect
Understanding Acceleration: Remember, acceleration is speeding up, slowing down, or changing direction.
Derections for the following statements. If a statement describes acceleration, say on Yes. If the statement does not describe acceleration, say on No.
1. Your pet dog runs around in circles, chasing his tail. *
Yes
or
No
2. A car slows down as it comes to a red light. *
Yes
or
No
3. You pedal your bicycle at a speed of 5km/hr. *
Yes
or
No
4. As you see your friend approaching, you jump up from your chair and run over to greet her. *
Yes
or
No
5. Your brother walks across the room to open the window. *
Yes
or
No
6. You begin to walk faster when you sense that someone is following you. *
Yes
or
No
Answer:
∞∞∞∞∞∞║⊕║Hello Person║⊕║∞∞∞∞∞∞Your answer should be:
1. No
2. Yes
3. No
4. Yes
5. No
Explanation:
I hope this answered your question.
Brainliest would be appreciated!
Have a wonderful day!
Answer:
I dont know
Explanation:
ONLY HEAR FOR POINts