ILL GIVE BRAINLY AND THIS IS 15 POINTS PLZZZ HELPPPPPP


The best thermal insulators _____________________.


have free electrons.

are metals.

conduct heat well.

are gases.

Answers

Answer 1

Answer:

have free electrons

Explanation:

they are loosely bound and free to move through the material


Related Questions

Is potential energy higher at the equilibrium position?

Answers

When the kinetic energy is maximum, the potential energy is zero. This occurs when the velocity is maximum and the mass is at the equilibrium position. The potential energy is maximum when the speed is zero.

Aunt Mary needs to hang a picture in her bedroom. She uses a hammer to drive the nail into the wall. Find the force exerted by the hammer on the nail if the hammer stays in contact with the nail for 0.5s and has an impulse of 25Ns

Answers

Answer:

50N

Explanation:

Impulse = Force × Time

25 = Force × 0.5

Force = 25/0.5

= 50N

PLEASE HELP!

Imagine a simple circuit with a battery supplying a single resistor. If a second resistor was added to the circuit wired in series with the first, the current going through the first resistor would:

A) decrease
B) it would depend on whether the second resistor had a higher or lower resistance
C) stay the same
D) increase

Answers

Answer:

ummm stream txt blue hour

Explanation:

Answer:b

Explanation: this would be the closet answer

You are planning an investigation that explores the properties of matter. Which of the following will help you discover a physical property?


Experiment: place a powder into a beaker that contains a liquid/Result: the beaker gets hotter

Experiment: place a powder into a beaker that contains a liquid/Result: the solid dissolves into the liquid

Experiment: place a powder into a beaker that contains a liquid/Result: the mixture begins to fizz and bubble

Experiment: place a powder into a beaker that contains a liquid/Result: the mixture catches fire and burns down the lab

Answers

Answer:

I will post your answer soon

Explanation:

If you are planning an investigation that explores the properties of matter, then experiment: place a powder into a beaker that contains a liquid Result : the beaker gets hotter will help you discover a physical property.

What is experiment ?

An experiment is a technique used to confirm or deny a hypothesis, as well as assess the possibility or effectiveness of something that has never been done before. Experiments show what happens when a certain component is modified, which sheds light on cause-and-effect relationships. The purpose and scope of experiments vary widely, but they always rely on a repeatable process and a rational examination of the outcomes. Natural experimental experiments are also a thing.

While a child may conduct simple experiments to better understand how objects fall to the ground, scientific teams may spend years conducting thorough research to increase their understanding of a phenomenon.

This experiment shows enthalpy is positive, heat is absorbed in this experiment. this breaks the atoms and it needed the energy.

To know more about heat :

https://brainly.com/question/1429452

#SPJ2.

A pizza delivery person drives 3 miles North then 5 miles West and then 3 miles South to deliver a pizza. What is the person's displacement?
A. 45 miles
B. 8 miles
C. 11 miles
D. 5 miles west

Answers

Answer:11

Explanation:

Just did it

Answer: it’s 11

Explanation:

I just did the question

What TWO things do all vectors have?

Answers

I think they all have a direction and magnitude.

Answer:

Explanation:

orange jump suit n a fat belly

How can I skip class:

A: Fake sick.
B: Have a heating pad on my heat to have a fake fever.
C: Fake barf
D: Act fine until a test the neb sick

Answers

Answer:

c gl

Explanation:

::::::::::::::::::::::::

Thanks for the free points I would do C

What type of boundary is shown in the diagram?

Answers

Answer:Divergent boundaries -- where new crust is generated as the plates pull away from each other.

Convergent boundaries -- where crust is destroyed as one plate dives under another.

Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other.

Explanation:

What diagram snwnwnnwnwnwnw

All of the following are sources of calories except HELP ASAP!!!

Answers

Answer:

vitamins don't contain calories

A person on a daily diet of 2,500 calories should get no_more than
calories from fat each day.

Answers

Answer:

35%

Explanation:

Answer:

its 83

Explanation:

Someone plz help I’m on a time limit :(

What patterns occur in the Earth-Sun-Moon system that allow us to identify the cause of
eclipses?

Answers

Answer:

Earth's rotation and orbit and the Moon's orbit cause observable patterns (Day and night, seasons, phases of the Moon, tides).

equation for power work done and time

Answers

Answer:

power can be expressed as P=work/change in time,instead of P=change of energy/change in time because the change of energy is basically the work done.

Answer:

P=W/T....is the answer

Which of these would have the highest temperature?
ice
water
water vapor

Answers

Answer:

Water vapor

Explanation:

Water Vapor has the highest temperature, due to its being in a gas state, and gases usually have very high temperatures, for example steam when you boil pasta.

Hope this helps you! Have a nice day!

If a train is moving 10 m/s, how long would it take the train to go 2200 m

Answers

Answer:

220 seconds

Explanation:

Can someone help me with these questions pls

Answers

8. ionic bond because lithium is a metal and oxygen is a non metal.

9. covalent bond because sulfur and oxygen are both non metals.

10. covalent

11. ionic

A volume of 25 milliliters is the same as a volume of ____________________ cubic centimeters.

Answers

Answer:

25 cm³

Explanation:

In the conversion of units, we know that are one cubic centimeters (cm³) in a milliliter (mL) .

1 milliliter = 1 cubic centimeter

25 milliliters = 25 cubic centimeters

Therefore, a volume of 25 milliliters is the same as a volume of 25 cubic centimeters.

This ultimately implies that, the volume of an object in milliliters is equivalent to its volume in cubic centimeters.

A small motor uses 200 watts to do 4000 joules of work. How much time this take to occur?​

Answers

The answer is 20 seconds.

Help
Question 6: Which of these is Not a unit of density?

Answers

Answer:

SI

Explanation:

On a box are the words 12 Volt : 50 mA
What is the resistor in Kilo-Ohm?

Answers

Answer:

R = 0.24 kilo-ohm

Explanation:

Given that,

Voltage, V = 12 volt

Current, I = 50 mA = 0.05 A

We need to find the resistance of the resistor. We can find it using Ohm's law. So,

V = IR

[tex]R=\dfrac{V}{I}\\\\R=\dfrac{12}{0.05}\\\\R=240\ \Omega[/tex]

or

R = 0.24 kohm

So, the value of resistance is 0.24 kilo-ohm.

please help me i neeed help with all threeas soon as possible thank you

Answers

Answer:

4b: comets

5a: supercluster

5b: they just changed 4b's solar system for milky way. I think it is still comets. if not, then just say black holes.

Waves are observed passing under a dock. Wave crests are 8.0 meters apart. The time for a complete wave to pass by is 4.0 seconds. The markings on the post submerged in water indicate that the water level fluctuates from a trough at 6.0 meters to a crest at 9.0 meters. Calculate the velocity of the wave.

Answers

Answer:

  2 m/s

Explanation:

The crest of the wave moves 8 meters in 4 seconds, so its speed is ...

  (8 m)/(4 s) = 2 m/s

Answer:

2 m/s is the answer .

Explanation:

#CarryOnLearning

I need help with 1-3 and 6-9

its do today need help with all of the questions plzzzzz

Answers

Answer:

56767475457345621251461

Explanation:

Answer:

1.C

2.B

3.A

i need a better picture to help with 6-9

A 1800 kg car moving south at 17.5 m/s collide with a 2800 kg car moving north. The cars stick together and move as a unit after the collision at a velocity of 5.22 m/s to the north. Find the velocity of the 2800 kg car before the collision

Answers

Answer:

   v₀₂ = -2.67 m / s

Explanation:

Let's use the conservation of the moment, for this we define a system formed by the two cars.

Consider the north direction as positive and the subscript 1 will be used for car 1 and the subscript 2 for the second car

Initial instant. Before the crash

          p₀ = -m₁ v₀₁ + m₂ v₀₂

Final moment. Right after the crash

          p_f = (m₁ + m₂) v

           p₀ = p_f

           -m₁ [tex]v_{o1}[/tex] + m₂ v_{o2} = (m₁ + m2) v_{f}

         v₀₂ = [tex]\frac{(m_1 +m_2) v }{m_2}[/tex]+  [tex]\frac{m_1 v_{o1} }{m_{1} }[/tex]

 

let's calculate

          v₀₂ = [tex]\frac{(1800 +2800) 5.22 + 1800 (-17.5)}{2800}[/tex]

          v₀₂ = -2.67 m / s

the negative sign indicates that the carriage moves in the opposite direction of the temperies

A solar eclipse may occur when:

A. when the moon is 3rd quarter phase
B. when the moon is full
C. when the moon is at 1st quarter phase
D. when the moon is new

Answers

D. When the moon is new

A reference point allows you to determine the _____________of an object state state speed speed position position dimension

Answers

Answer:

Position.

Explanation:

Motion can be defined as a change in the location (position) of a physical object or body with respect to a reference point.

This ultimately implies that, motion would occur as a result of a change in location (position) of an object with respect to a reference point or frame of reference i.e where it was standing before the effect of an external force.

Mathematically, the motion of an object is described in terms of acceleration, time, distance, speed, velocity, displacement, position, etc.

A reference point refers to a location or physical object from which the motion (movement) of another physical object or body can be determined.

For example, a point on a map is considered to be a reference point because it represents the starting point of an object or person in motion.

Hence, a reference point allows you to determine the position an object.

Resistor 1 has a resistance of 10 N and
carries a current of 3 A. Resistor 2 has a resistance of
5 and carries a current of 10 A. Which resistor has
the greater potential difference?

Answers

Answer:

Resistance 2.

Explanation:

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

[tex] V = IR[/tex]

Where;

V represents voltage measured in voltage. I represents current measured in amperes. R represents resistance measured in ohms.

Note: Voltage is the same as potential difference.

Given the following data;

Resistance 1  = 10 Ohms

Current 1 = 3 Amperes

Potential difference 1 = current * resistance

Potential difference 1 = 3 * 10

Potential difference 1 = 30 V

To find the potential difference in 2;

Resistance 2 = 5 Ohms

Current 2 = 10 Amperes

Potential difference 2 = 10 * 5

Potential difference 2 = 50 V

Therefore, Resistance 2 has greater potential difference.

1.Coral reefs are endangered by?
a. Climate change b. pollution C. overfishing d. all of the above​

Answers

Answer:

I'm going to go out on a limb and say D. All of the above

Explanation:

The answer would be D: All of the above

The velocity of a car increases from 10 km/h to 50 km/h in 5 seconds. What is its acceleration?

Answers

Answer:

2.22m/s^2

Explanation:

PHYSICS physics help me pls!

Answers

the question is not clear for me the mass of the word and the pivot the artist as the counterweight of the end we calculate the mass of the counterweight sorry

Answer:

calculate mass of the counterweight?

Explanation:

help pls
Based on the pattern in the data, we can predict that the period of Mars’ orbit will be–

Answers

The correct answer would be about 687 days for a full orbit

Answer:

greater than 365.2 days.

Explanation:

Other Questions
ASAP!!! With give branliest Which statement best explains how effectively the passage uses vividdescription?The master of ceremonies crossed the stage and stood behind thepodium. Landon had anxiously waited for the moment when thewinners would be announced for the Young Leaders Speech Contest.Now that it was finally here, his stomach felt like butterflies flying inhurricane winds. He closed his eyes, took a deep breath, and rubbedhis sweaty palms on his dress pants. The announcer's voice boomedthrough the speakers, but Landon's brain buzzed with both excitementand dread. "And the winner of the Young Leaders Speech Contest is ..." The announcer paused and looked down at the note card in his hand.Landon squeezed his hands into tight fists, closed his eyes, and heldhis breath. Just a few more seconds and he'd know if his earnestpractice and powerful performance had paid off.A. The vivid description is not effective, because it creates ananxious tone that does not fit with Landon's feelings about thecontest.B. The vivid description is not effective, because the calm visualimages do not match up well with Landon's nervousness.C. The vivid description is effective, because it shows how nervousLandon is by describing his physical reactions. D. The vivid description is effective, because it conveys Landon's sense of joy by using visual image of a butterfly. Solve 2(2x - 3)^2 = 32. A. x = 1/2; x = 12 B. x = -1/2; x = 1/2 C. X = -7; x = 1 D. x = -1; x = 7 What is the difference between multiplication and exponents? PLEASE HELP HURRY!!!!!!!!!!!!!!!!!!!!! Use the following terms in the same sentence chemical reaction and precipitate HURRY I NEED HELP!!!!!!!!!!!!A container in the shape of a pyramid has a rectangular base with dimensions of 5 inches by 15 inches. The height of the rectangular pyramid is 12 inches. Marbles fill half the volume of the container. How many more cubic inches of marbles are needed to finish filling the container?Enter your answer in the box.{ }in3 How does the poet make the red flower of the light - house tower more appealing ? by giving it personal feelings by comparing it to the surf by having it save a life contrasting it with a harsh setting Describing a child as spirited rather than rambunctious suggests a tone ofAEnergeticBCondescendingDPatronizing Which law said that a president had to get permission to remove anyoneappointed by a past president (2/2) WHich one is wrong, which one is correct? Only right answers only! Marcus left his candy bar on the counter so he would have a treat after school. When he arrived home, he saw that the candy bar was half eaten. What did Marcus know from the evidence he got by observing the candy bar? a. The environment interacted with Marcus candy bar. b. An organism interacted with Marcus candy bar how many solutions are in 3(x-2)=6x-3 Asphere has radius of 3 cm. What is the volume of the sphere? There is a brick patio around a fire pit, as shown. Use 3.14 for pi.What is the area of the fire pit? How do the first two lines of "The New Colossus" contribute to the poem's meaningThey introduce an idea that the rest of the poem contrasts.They establish an idea that is explored throughout the rest of the poem.They introduce a topic unrelated to the topic described in the rest of the poem.They establish a comparison between two related ideas.(IF YOU HAVEN"T DONE THE TEST DON'T ANSWER) 5) Lady Capulet hopes that her daughter will Why is it important for body cell to have twice and many chromosomes as sex cells? true or false 1,500 lb > 1 T I will give you 15 point Help please History which statement best describes Harriet TubmanA she risked her life many times to help slave escape the freedom. B she led slave rebellions on plantations throughout the South C she wrote a novel that showed many Americans the horrors of slavery D she started in a Abolitionist newspaper that influenced many politicans