Answers
Answer:
Explanation:
I believe what you're looking for is :
Opposites
Density
Could be wrong but I think so.
Related Questions
Substances which naturally attract each other called what
Answers
Answer:
Ferromagnetism, physical phenomenon in which certain electrically uncharged materials strongly attract others. Two materials found in nature, lodestone (or magnetite, an oxide of iron, Fe3O4) and iron, have the ability to acquire such attractive powers, and they are often called natural ferromagnets.
Hope this help :)
The electric force between two charged balloons is 0.12 newtons. If the distance between the two balloons is halved, what will be the new force?
A.
0.03 newtons
B.
0.06 newtons
C.
0.36 newtons
D.
0.48 newtons
Answers
Answer:
d. 0.48
Explanation:
Astronomers classify galaxies by their shape. Which of the following terms describes a galaxy that looks like a round or flattened ball and contains little gas and dust between the stars?
A.
elliptical galaxy
B.
irregular galaxy
C.
No galaxies are shaped like a ball
D.
spiral galaxy
Answers
On a visit to a science lab, Madison observes a blob of shiny material that is floating in the air.
The blob is not moving.
What can she conclude about the force(s) acting on the blob?
Answers
Answer:
Each force acting on the blob has another one to cancel it out
Explanation:
Answer:
well we know for sure that gravity is not affecting it because it is floating in the air.
Explanation:
Do not understand, need help doing this
Answers
Answer:
I found it would be quadrupled if it was doubled
Explanation:
The kinetic energy of an object is the energy possessed by the object due to its motion. It is given by:
where
m is the mass of the object
v is its speed
From the equation, we notice that the kinetic energy is:
Directly proportional to the mass
Proportional to the square of the speed
In this problem, the initial kinetic energy of the object is
K = 100 J
Later, the speed of the object is doubled:
v' = 2v
Therefore, the new kinetic energy will be
So, we see that the kinetic energy will quadruple.
A car accelerates from rest at 3.5 m/s2 for 6.5 seconds what is the cars final speed
Answers
Answer:
please find attached pdf
Explanation:
What characteristic of sound is most closely related to its frequency?
A. Quality
B. Amplitude
C. Speed
D. Pitch
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Answer:
The loudness of sound is most closely related to
The pressure within a sound wave determines the loudness of the sound. In this lesson, learn how to calculate the sound pressure level of a sound wave and what this measurement represents.
Explanation:
If three balls of different materials were dropped at the same time from the same height, which would hit the ground first? (Assume there is no
air resistance.)
Answers
Answer:
It depends of the mass and weight of each of the materials
Explanation:
What is a real world example of the Law of Conservation of Momentum?
Answers
Answer:
The thrust that you feel at the time of firing is one of the real-life example of the conseriation nomentum
Weightlessness occurs when an object applies a reaction force to another object. Please select the best answer from the choices provided T F
Answers
Answer: The answer is F
Explanation: because it is I took the test
which force requires contact?
A. The force exerted by air as an object moves through it
B. The force produced by interactions between electronically charged objects
C. The forced produced by interactions between magnetic objects
D. The force of attraction between two masses
Answers
Answer:
A
Explanation: A is a example of Air resistance force, which is a contact force.
A 400 hp engine in a 1,600 kg car applies maximum force for 2 seconds to accelerate the car onto the
interstate. If the car moves at 8 m/s before accelerating, what is its speed after the 2 seconds of acceleration?
Answers
Answer:
I will assume that “maximum force” implies the constant application of power P = 400 hp (international) to accelerating the vehicle. The force will therefore vary with speed as the vehicle accelerates. I will also assume that all engine energy goes into accelerating the vehicle, rather than rotating elements like its wheels.
In this case the 400 hp (equivalent to 298,280 watts) is applied for time t = 2 seconds. Therefore the kinetic energy of the vehicle is increased by:
ΔKE=Pt=(298,280)(2)=596,560 joules.
The initial kinetic energy is:
KEinitial=12mv2
=(0.5)(1600)(82)=51,200 joules.
Therefore final kinetic energy is:
KEfinal=KEinitial+ΔKE
=51,200+596,560
=647,760 joules
Therefore final vehicle velocity can be found:
KEfinal=12mv2
v=2KEfinalm−−−−−−−−√
=(2)(647,760)1600−−−−−−−−−−−√
= 28.455 m/s
Explanation:
4. What will happen to the amount of kinetic energy if an object's mass
decreases?
A. The kinetic energy will increase I
B. The kinetic energy will decrease
C. The kinetic energy will remain constant
Answers
DUE TONIGHT 50 POINTS
An applied force of 13 N east acts on a 6.5-kg block that is moving east at 2.5 m/s on a level, frictionless surface. What is the final speed
of the block if the force is applied for 2.1 s?
A. 1.7 m/s
B. 4.2 m/s
C. 6.7 m/s
D. 7.2 m/s
Answers
13 = 6.5 a
a = 2 m/s²
Vf = Vi + a t
Vf = 2.5 + 2(2.1)
Vf = 2.5 + 4.2
Vf = 6.7 m/s
Answer is C
Will the rocket go up or will it stay on the ground ? Explain the answer if you can also please and thank you.
Answers
Answer:
the rocket will go up
Explanation:
there is less force pulling down on the rocket.
100N > 75N
Which of the following does not describe when something has acceleration?
Changes in displacement
Changes in speed
Changes in direction
Changes in speed and direction
Answers
Answer:
changes in displacement
Explanation:
internal diameter of a test tube
Answers
Answer:
16 mm with 14 mm inside diameter.
Which of the following is an English system unit of measure?
O A. meter
B. mile
O C. gram
OD. liter
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Explain two negative effects of friction
Answers
disadvantages
Explanation:
releases heat when not required
opposes motion
Disadvantages- at one point it will end and you will not longe have friction
What kinds of bonds make up a formula unit of sodium chloride?
a.
Ionic bonds
b.
Covalent bonds
c.
1 ionic bond and 1 covalent bond
d.
Van der Waals forces
Answers
Answer:
a.ionic bond is kinds of bonds make up a formula unit of sodium chloride.
Answer:
A
Explanation:
amanda placed a small television on a metal rolling cart. on her way to the library, her friend carlos stepped in front of the cart. although amanda stopped suddenly, the television stayed in place on the cart. what kept the television on the cart when she stopped suddenly?
Answers
Answer:
Friction. Have a great day! Think positive <3
Answer: Friction
Explanation: It makes sense
hii please help i’ll give brainliest if you give a correct answer please
Answers
A student is given a sample of matter and asked to determine whether it is an element.
Answers
Can anyone help with this physics question
Answers
Helicopters are most different from airplanes in that:
A. Helicopter pilots mostly use their own vision to navigate.
B. Any significant disturbance in a helicopter system means the helicopter stops flying immediately.
C. They are each used for completely different tasks.
D. Helicopters are significantly safer to fly.
Answers
You get out of school and walk north for 20 minutes. You travel
1.6 km. What is your average velocity?
What is the
Answers
Answer:
[tex]\boxed {\boxed {\sf v= 0.08 \ km/min \ North}}[/tex]
Explanation:
Velocity is found by dividing the displacement by the time.
[tex]v=\frac{s}{t}[/tex]
where s is the displacement and t is the time.
The displacement is 1.6 kilometers, but it needs a direction as well. The question notes you walked North. The time is 20 minutes.
[tex]s= 1.6 \ km \ North \\t= 20 \ min[/tex]
[tex]v=\frac{1.6 \ km \ North} { 20 \ min}[/tex]
Divide.
[tex]v= 0.08 \ km/min \ North[/tex]
Velocity is a vector quantity, so that is why it has the measurement and the direction.
The average velocity is 0.08 kilometers per minute North.
Answer:
Are there no moderators here?
Who are moderators here?
Well, the above answer is correct..
✨
Which model shows how a comet's tail changes during its orbit?
Answers
Third model shows how a comet's tail changes during its orbit...
mark brainliest
A 62 kg male ice skater is facing a 42 kg female ice skater. They are at rest on the ice. They push off each other and move in opposite directions. The female skater moves backwards with a speed of 3.7 m/s. What is the velocity of the male skater?
Answers
The velocity of the male skater is 2.5 m/s in opposite to the direction of the female skater moving.
What is the law of conservation of momentum?According to the law of conservation of momentum, The overall momentum of two or more bodies acting on one another in an isolated system stays constant unless an external force is introduced. As a result, momentum cannot be gained or lost.
Given parameters:
The mass of the male ice skater is: M = 62 kg.
The mass of the female ice skater is: m = 42 kg.
Initially both of them are in rest.
After they push off each other and move in opposite directions, the female skater moves backwards with a speed of v =3.7 m/s.
Let the speed of the male ice skater is V m/s now.
From the law of conservation of momentum:
MV + mv = 0
V = - mv/M
= - (42×3.7)/62 m/s
= - 2.5 m/s
Hence, the velocity of the male skater is 2.5 m/s in opposite to the direction of the female skater moving.
Learn more about momentum here:
https://brainly.com/question/29113044
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Which one, mass or weight, would change if you were to travel to another planet or moon?
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Answer:
The answer is weight.
Mass is constant, your mass, height and width won’t change. So that leaves weight.
how do I convert 550 nm to cm
Answers
Answer:
it = 5.5e-5 cm
just tyoe in on the search bar nm to cm and a calculatro comes up
Explanation: