Physics Middle School

The energy of a machine that is transformed into heat:

is destroyed
can always be used for additional work
usually cannot do any further work
can be transformed back into mechanical energy

Answers

Answer 1

Answer:

can be transformed back into mechanical energy

Explanation:

energy never is destroyed it created, just transformed

Related Questions

Which of the chemical equations below is properly balanced???

Answers

Answer:

A

Explanation:

I think i could be wrong

The first one is correctly balanced

Which of the following equations represents an acid base reaction?

Answers

Answer:

the second one

Explanation:

2nd one would be the answer

Homework: What happens when you kick the bottom of the ball in soccer?​

Answers

Answer:

It will move due to force.

Explanation:

Answer: You hurt your Toe :))

Explanation:

Which of the following will most likely be a sustainable environment?

A. An environment with a small variety of plants and animal species
B. An environment with a large variety of plant and animal species
C. An environment with many plant species but with only a few animal species
D. An environment with many animal species but with only a few plant species

Answers

Answer:

I think A

Explanation:

C. , i had to do this before :) hope this helps

I NEED THIS ASAP!!! A ball is thrown straight up with an initial velocity of 4.40 m/s. Assuming there is no air friction, what is the maximum height the ball will reach? 40pts pls

Answers

Answer:

I think it is 80m/s

Explanation:

d = ½ g t2

  = ½ (10 m/s2) (4 s)2

  = (5 m/s2) (16 s2)

  = 80 ms

75% sure

Hope this helps!!!

Burning can be:

controlled for useful work
wasted for useful work
stopped for useful work

Answers

Answer:

Controlled for useful work

Explanation:

controlled for useful work

Owen is going on a multi-day hike up a large mountain. He wants to know what clothes he should bring for the higher elevation as he hikes. What clothes should Owen bring? (2 points)

a
An umbrella, since precipitation is more common at high elevation.

b
Heavier clothes, since the higher elevation will have cooler temperatures.

c
The same type of clothes he wears normally, as the temperature will remain the same at high elevation.

d
Lighter clothes, because the higher elevation will have warmer temperatures.

Answers

The answer is c hope this helps
i think it’s c i’m sorry if it’s not...

The three basic economic questions societies face are (1) what goods and services to produce, (2) how to produce those goods and services, and (3) who will get them.

In one or two paragraphs, explain how supply and demand help societies determine their answers to these three questions. Be sure to provide an example of the effect of supply and demand on a society's answers.

please help

Answers

When supply is high is the people don’t want it as much. When the supply is low people most likely want It. Demand is just basically controlled by the people.

Supply and demand let's us know what needs to be more produced and what needs to be less produced. For example, the demand for a TV will be high, but the demand for paper might be low. So the company will produce more TVs and less paper because the Supply and demand tells them that the people want TVs. When supply is high the people don’t want it as much but the supply is low people most likely want It. Demand is just basically controlled by the people.

A behavior that is developed by observing others or being taught is
Inherited Traits

Inherited Function

Learned behavior

Characteristic

Answers

B. Learned behavior
B. Learned behavior. Your parent didn’t pass down that trait to you , you’re observing someone / being taught that behavior

Sam has 3/4 of a can of the hot chocolate mix for drinks to keep everyone
warm. To make a cup of hot chocolate, Sam adds hot water to one
scoop of hot chocolate mix. The scoop holds 1/24 of a can. How many cups of hot chocolate can Sam make?
Speak fast

Answers

Sam can make 18 cups of hot chocolate.

If you look this question up on Brainly you’d find your answer. Hope this helps. :)

6. When green, blue and red lights flash together what color do you see?
7A. ____________________ means to bounce off, and ____________________ means to take in or soak in .
7B. When no light was reflected from the object to your eyes, what color did you see? __________________________
7C. In order for you to see anything, _____________________ has to reflect (bounce) from the object to your eye.
7D. A red card reflects ________________________ back to your eyes and absorbs what colors?

Answers

Answer:

6. When green, blue and red lights flash together what color do you see? White.

7A. __Reflect________ means to bounce off, and _____absorb________ means to take in or soak in .

7B. When no light was reflected from the object to your eyes, what color did you see? ____Black_____________

7C. In order for you to see anything, ___light_______ has to reflect (bounce) from the object to your eye.

7D. A red card reflects ____red__________ back to your eyes and absorbs what colors? Blue and green.

Explanation:

hope this helps :)

Help please ‍♀️ I’m stuck

Answers

Answer:

b i guess i mean i dont have much to go off of  so imma say b

hope this helps have a great day :)

Answer:

Energy

Explanation:

Mixing chemicals in a cold pack creates a reaction that:

absorbs heat
destroys heat
releases cold
none of the above

Answers

Absorbs heat!! Im sorry if it isn’t correct but yeah

In 3 - 5 sentences, explain how a kitten with black stripes received this trait. Elaborate on the difference between genotype and phenotype.

Answers

If black stripes is a dominant trait then at least one of the kittens parents also has black stripes. If black stripes is a recessive trait then the parents don’t necessarily have to have black stripes, however both of them have to carry the recessive trait for the offspring to have black stripes. A genotype refers to genetic make up so like blood type or if there are any sicknesses that run through the family. Phenotype refers to outside characteristics like hair color and eye color.

Mixing chemicals in a cold pack creates a reaction that:

absorbs heat
destroys heat
releases cold
none of the above

Answers

the answer would be absorbs heat

Answer:

Absorbs heat!! Im sorry if it isn’t correct but yeah

Explanation:

what are the 27 vawels

Answers

Answer:

umm i really don't know... sorry

Explanation:

If you mean Vowel...there are 5 vowels, A,E,I,O,U. Sometimes the letter Y can be a vowel too; it just depends on the word.

What kingdom (Plantae, Fungi, Animalia, or Protista) does each organism belong to? (no links)

Answers

Answer:

Plantae: herbs, plants, trees, bushes, grass....

Fungi: yeasts, molds, mushrooms

Animalia: all animals (not prokaryotes nor protists)

Protista: amoebae, red algae, dinoflagellates, diatoms, euglena, and slime molds

Answer:

Plantae: Kingdom Plantae

Fungi: Kingdom Eukarya

Animalia: Kingdom Metazoa or Animaliaanimals

Protista: Kingdom Protista

Explanation:

Kingdom Plantae includes familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae.

The Kingdom Fungi belongs to the domain Eukarya and it includes at least 11 separate groups

All animals are members of the Kingdom Animalia, This Kingdom does not contain prokaryotes  or protists

Protists are eukaryotic organisms put simply, protists are all the eukaryotes that are not animals, plants, or fungi.

Which statement would be an example of a climate report for Texas?


a. The average annual temperature in San Antonio is 20°C.

b. There is a good chance that severe thunderstorms will move through Dallas late tonight.

c. Tomorrow will be the hottest day of the year for residents of Houston.

d. People in Galveston can expect the temperature to drop into the low 60s later in the week

Answers

The answer is option a.

Hope it helped and if it did then pls mark brainliest. Also have a nice day : )
Answer is A if im
wrong im so sorry but i had this question on my test and got it right if this helped mark as brainiest please:)

My kitty just past her name was winter :c

Answers

Oh I’m so sorry rip winter
Oh Cute I want a cat too:’(

Which of these diagrams is a convex mirror?

Answers

Answer:

Which of these diagrams is a convex mirror?

Explanation:

iT was the first pic..edge 2021

Answer:1st one

Explanation:

Right on edge

What is a bright streak of light that results from a space rock burning in earth’s atmosphere?
A.
Meteor

B.
Asteroid

C.
Meteorite

D.
Meteoroid

Answers

Answer:

A

Explanation:

A meteor is a streak of light in the sky caused by a meteoroid crashing through Earth's atmosphere. Meteoroids are lumps of rock or iron that orbit the sun. Most meteoroids are small fragments of rock created by asteroid collisions. Comets also create meteoroids as they orbit the sun and shed dust and debris.

A. Meteor. A meteor is a streak of light in the sky caused by a meteoroid crashing through earths atmosphere.

As a Sun-sized star dies, it puts on an exquisite show, shedding its outer layers into space. How long does this process last?
Thousands of years
Billions of years
Millions of years
An unknown amount of time

Answers

It will take billions of years because the sun would take about 5 billion years to die

When sodium and chlorine are mixed:

nothing happens
heat and light are released
heat is absorbed from the environment

Answers

Heat and light are released!

The correct answer is B: heat and light are released.

When light energy hits matter, _____ energy is formed.
A Heat
B Mechanical
C Potential

Answers

A. heat energy is formed
The correct answer is A

Explain how crust density is related to ocean trench.

Answers

The intense pressure, lack of sunlight, and frigid temperatures of the hadalapelagic zone make ocean trenches some of the most unique habitats on Earth.

1. Sketch a picture of the components of a galaxy. Write the name of our galaxy as the title of your drawing.2. Investigation3. Ervin is a current 5th grade student. One weekend he went on a trip to the beach with his family. After arriving at the beach, his mother put sunscreen on him to protect him from the Sun. Ervin and his older brother decided to go swimming in the ocean. While swimming his brother pointed out how large the Sun appeared. Later in the day, the Sun was covered up by dark clouds. When the Sun got covered, Ervin decided to stop swimming.At school on Monday, Ervin’s class was learning about the Sun. Ms. Chabert, his teacher, posed 3 questions to the class. Ervin was excited because he was able to use what he learned about the Sun at the beach to answer each question correctly. Use what YOU know about the Sun to answer the questions that Ervin’s teacher posed to the class. Answer in complete sentences please.A. Is the Sun a star?B. Why does the Sun appear large and bright?C. Is the Sun the largest star in the sky?D. What types of energy does the Sun give off?E. How does energy help us on a daily basis?

Answers

Square base. Would be the answer

What is the flaw with using apparent brightness rather than absolute brightness to determine the brightness of a star?

Apparent brightness does not use the star's color or temperature.

Apparent brightness does not take into account the distance of the star from Earth

Apparent brightness is only theoretical, its value cannot be directly measured with equipment

Apparent brightness is only on a comparative scale that determines how bright a star looks from a theoretical distance of 10 parsecs
from Earth.

Don’t answer if you’re just going to put a link or file.

Help if you know and are sure

Answers

Answer:

Apparent brightness is only on a comparative scale that determines how bright a star looks from a theoretical distance of 10 parsecs

from Earth.

Science Class:
Question 1: A) Which state(s) of matter have a fixed shape? B)A fixed volume?
Question 2: A) Rank the states of matter from most kinetic energy of the particles to least B) Rank from most particle spacing to least

Answers

solids have a fixed shape. and the most particle spacing to least particle spacing is : gas then liquid then solid ! hope this helps :)

which of the following has the most kinetic energy
A: stretching a rubber band
B: a jet flying through the air
C: trowing a paper airplane
D: pitching a baseball

Answers

Answer:

D pitching a ball

I think the answer is B

plz answer the question in the image below
(really its 8th grade science but they don't have that)

Answers

Hi, the answer is N = .5m/s^2
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