SOMEONE PLS HELP WITH THESE TWO QUESTIONS

1)Chad’s family just moved into a new home. The sun went down as Chad was moving boxes into the house, so he had to turn on a light to see. Which statements are true about the power Chad used? Choose the two statements that apply.
A. The power he used to move the boxes can be found by determining the rate at which work was done on the boxes.
B. The power Chad used to move the boxes is the force he used times the distance he moved them.
C. The power of the light Chad turned on is the amount of energy changed from electricity to light.
D. The power of the light Chad turned on is the amount of energy transferred per time.


2)Raul dug a hole in his yard to repair a water pipe. It took him 2 seconds to apply a force of 50 Newtons to push the shovel 0.25 m into the ground. How much power was used?

A. 0.01 watts
B. 6.25 J/s
C. 25.00 N•m•s
D. 100.00 watts

Answers

Answer 1

Answer:

1.) A and D

2.) B

Explanation:

Answer 2

The power he used to move the boxes can be found by determining the rate at which work was done on the boxes. The power of light Chad turned on is the amount of energy transferred per time. So the correct options are A and D. In 2nd, the power used was 6.25 J/s. So the correct option is B.

What is power?

The watt, denoted by the letter W, is the common unit used to measure power. James Watt, a Scottish businessman and inventor, is honoured with the unit's name. The watt is certainly a term you frequently encounter in daily life. Electrical devices like light bulbs and stereos commonly advertise their power output in watts. One watt is equivalent to one joule of work performed each second by definition.

Horsepower is another power unit that is still extensively used. This was first used to describe the ability of a regular horse to spin a capstan in the 17th century and is often represented by the sign hp. Since then, a metric horsepower has been defined as the force needed to raise a 75 kg mass a metre in one second, where 75 kg is the mass's weight in kilogrammes.

Therefore, for 1) the correct option is A and D and for 2) the correct option is B.

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Related Questions

Explain why an increase in precipitation and in the number of nearby factories has a greater impact on the occurrence of the mari flowers than changes in temperature, length of day, and invasive species

Answers

The increase of precipitation and number of nearby factories has a greater impact on the occurance of mariflowers because some types of precipitation has acid in it, and the acid has a high pH level. ... All of those chemicals have higher pH levels than changes in temperature.!!!

Advanced rainfall during the growing period can lead to an improvement in the utilization of soil water, which is beneficial to root growth.While rain clearly affects food supply, it also can affect foraging behavior, reproductive and population growth rates, and competitive interactions in subtle ways that might be difficult for researchers to trace back to any particular sourceThe increase of precipitation and number of nearby factories has a greater impact on the occurrence of mari flowers because some types of precipitation has acid in it, and the acid has a high pH level. All of those chemicals have higher pH levels than changes in temperature.

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Which series of processes CANNOT
happen in the water cycle?

Answers

Answer:

d...

Explanation:

Can drinking Gatorade make you a baller like Michael Jordan, claim evidence and reasoning

Answers

Answer:

although Gatorade has electro lights and other substances this is false you need to train be able to train yourself so you can shoot hoops like Jordan

Explanation:

Answer:

Sorryy, MJ is the G.O.A.T, and in my opinion, Gatorade gives you energy.. not Michael Jordan's super powers ;)

Explanation:

For each food listed below, choose whether it has all single carbon-to-carbon bonds or at least one double carbon-to-carbon bond.

Answers

Answer:

Peanut Butter: All single carbon-to-carbon bonds

Sunflower Oil: At least one double carbon-to-carbon bond

Cheddar Cheese: All single carbon-to-carbon bonds

Explanation:

ANSWER QUICK PLEASE !!!

Explain how a greenhouse stays warmer than its outside.

Answers

Answer:

Greenhouses stay warm because only some kinds of radiation penetrate their surfaces, which are glass and/or plastic. Solar radiation passes freely through clear substances such as greenhouses' glass and plastic, and it heats soil, stone, plants and anything else inside the greenhouses.

specifically how long did each eon last?

Answers

Answer:

one billion years

Explanation:

NEED RN! MARKING BRAINLIST WORTH 100!! Put in order from SMALLEST to LARGEST how the structures of plants, animals, and fungi are organized.

skeletal muscle, digestive system, heart, cell, organism

Answers

Cell, organism, heart, skeletal muscle, digestive system.

Describe the four major spheres that support life on Earth.
Explain how rays AB and AC form both a line and an angle.

Answers

Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).

Two rays AB and AC having the same endpoint are opposite rays if they two rays are unequal but line AB is equal to line AC. Otherwise they are nonopposite. An angle is the union to two nonopposite rays AB and AC sharing the same endpoint. The angle is denoted by either angle BAC or angle CAB.

Help!!!!A student reads that some pea plants have violet flowers, while some have white flowers. Breeding a pea plant with violet flowers with a pea plant with white flowers produces offspring,
some of which have violet flowers, while some have white flowers.
How do the offspring express the gene for flower color from the parent plants?
the random expression of one gene obtained from a single parent plant
the expression of one gene obtained from each parent plant
the expression of a gene that is inherited by any cell of the offspring
the random expression of a gene that is more numerous in the cells of the offspring

Answers

Answer:

its c. The expression of a gene that is inherited by any cell of the offspring

Explanation:

in what order did the events forming our solor system occur?

Answers

Answer:

The solar nebula spun faster and faster and flattened into a rotating disk. Most of the gas was pulled toward the center, where it became hot and dense, forming the Sun. Which statements describe planetesimals?

Explanation:

Answer:

The solar nebula spun faster and faster and flattened into a rotating disk. Most of the gas was pulled toward the center, where it became hot and dense, forming the Sun.

Explanation:

B. How does the appearance of a seed on the SIMULATION pane chan
nce the
seed has sprouted?

Answers

A sprouting of a seed is when seeds spores germinate and push out shoots. And they produce new leaves when the old ones fall

Using complete sentences, compare and contrast the terms living and biotic. In your response, illustrate using examples and appropriate compare-and-contrast vocabulary

Answers

Both living things and biotic factors can be alive.

Unlike living things, biotic things may not be alive; they may have once lived or came from something living.

I included an example of something both living and biotic, such as flowers.

I included an example of something biotic, but not living, such as paper.

I used compare-and-contrast vocabulary.

Explanation:

As you all know that living is a synonym for biotic, as both discuss the measures of life. It significantly includes plants, animals, humans, predators, etc.

What is biotic?

Biotic may be defined as something that is closely related to living organisms or something that is directly derived through the action of living organisms.

As compared to living, biotics may not always be alive, but it talks for a long period. Biotic is something that has once lived or emanated from something living.

Examples like plants, animals including humans are categorized under the category of living, while products such as rubber, latex, cow dung, paper, etc are biotic products that are not living.

Therefore, as you all know that living is a synonym for biotic, as both discuss the measures of life. It significantly includes plants, animals, humans, predators, etc.

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How are meiosis and mitosis different?
A. Cells go through telophase In mitosis, but In meiosis they don’t.
B. Chromatids from only during the process of meiosis.
C. Mitosis produces haploid cells, while meiosis produces diploid cells.
D. Only meiosis results In a reduction In chromosome number.

Answers

D. Only meiosis results in a reduction in chromosome number

Answer: D. Only meiosis results In a reduction In chromosome number.

Explanation:

I got it correct on the test

Which question can be answered by an experiment?
A)
Do sugar substitutes cause cancer?
B)
Did an ice age kill off the mastodons?
What caused the extinction of the dinosaurs?
D)
Are all people susceptible to the Hunta virus?

Answers

I’m pretty sure it’s B

Answer:

a

Explanation:

which best defines cohesion

Answers

Answer:

The act or state of sticking together tightly especially

Explanation:

That is one definition.

Hope that helps.

Answer:

Cohesion is sticking of particles of same substance.

Explanation:

For example we say water has cohesion property it means water molecules are cohesive with other water molecules.

HELP!

Which compound do
plants use for structural support?
o
A. cellulose
O B. glucose
O C. glycogen
0 D. starch

Answers

Answer:

A. Cellulose

Explanation:

Which of the following might have influence whether or not a comet will collide with a nearby planet

-The ice and dust the comet is composed of

-The composition of the planets atmosphere

-gravitational attraction between two celestial objects

-none of the above

Answers

Gravitational attraction between two celestial objects (i think)

In year 0, there are 789 bees in a population. The death rate is .21bees/year and the birth rate is .14bees/year. What will the population be in year 1?plsss help I have 19minutes left on my test !!!

Answers

Answer:

hcfdfvjxdhjgxgm

Explanation:

In what way do erysipelas and exudative epidermitis differ?
A. Erysipelas causes skin lesions, whereas exudative epidermitis causes digestive issues like diarrhea.
B. Erysipelas is a bacterial infection, whereas exudative epidermitis is often caused by a parasite infestation
C. Erysipelas can result in death, whereas exudative epidermitis is less serious and rarely results in fatalities.
D. Erysipelas is caused by streptococcus, whereas exudative epidermitis is caused by staphylococcus.

Answers

Answer:

D. Erysipelas is caused by streptococcus, whereas exudative epidermitis is caused by staphylococcus.

Explanation:

Hope this helped!

Why are most oceanic trenches found in the Pacific Ocean?

Answers

Answer:

It's where the subduction zones are.

Explanation:

Subduction zones - when two plates meet and one gives way to the other.

Answer:

Most oceanic trenches found in the Pacific Ocean because it is the largest ocean, therefore it has most most convergent boundaries. Whenever a convergent boundary is formed it creates a trench because the oceanic plates are denser the continental plates so they sink. This is known as subduction.

ok for my first question i'll keep it simple how many bones are in a dogs body?

Answers

Answer:

319 bones are in a dog's body

Answer:

319

Explanation:

HELP!

The answer to which of these scientific questions would MOST likely explain why all life on Earth is
based on carbon?
O A. How many carbon isotopes are stable?
O B. How much carbon is found in Earth's crust?
O C. What are the naturally occurring states of carbon?
D. What is the configuration of carbon's valence shell?

Answers

Answer: A is the answer

Answer:

D. What is the configuration of carbon's valence shell?

Explanation:

Carbon is considered special and very versatile because of the number of valence electrons it has. Because it has four valence electrons, it's able to combine with many other elements, which makes it an essential building block of life.

Which of the following is a necessary reactant for cellular respiration to occur? (2 points) a Carbon dioxide b Nitrogen c Oxygen d Water

Answers

Answer:

C.

Explanation:

"Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water."

Answer:

its oxygen!

Explanation:

I just took this test on FLVS and this was a question, I answered with Oxygen and ended up with a 100% test score. Hope I could help!

What type of organic compound is lactose

Answers

Disaccharide, lactose is a Disaccharide.


An ecologist is studying Dunaliella salina a single celled algae in a local pond. The pond is located near a construction site and the ecologist wants to know what affect, if any, the construction site is having on the pond, as there has been a steady decline in the Dunaliella salina population. In order to complete their study the ecologist would like to examine the organelles inside Dunaliella salina. If they would like to examine the inner structure of the chloroplasts of an already dead Dunaliella salina, what microscope would be best suited for this task? *

A.)dissecting microscope
B.)compound microscope
C.)scanning electron microscope
D.)transmission electron microscope

Answers

C hope this helped you

In the given scenario, to see the structures of chloroplast scientists can use a transmission electron microscope. The correct option is D.

What is transmission electron microscope?

Transmission electron microscopes (TEM) are microscopes that visualize specimens and basically create a much higher magnification of an image using an electron particle beam.

TEMs have the ability to magnify objects up to 2 million times.

Transmission electron microscopy (TEM) is a popular method for examining the ultrastructure of organelles.

TEM generates high-resolution pictures by passing electrons through an ultrathin segment of a sample and magnifying the resulting image with a series of lenses.

The electron beam of the TEM penetrates thin slices of biological material, allowing the study of individual components of cells and organelles.

Thus, the correct option is D.

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What organelle is responsible for cleaning and removing waste

Answers

Answer:

Lysosomes are responsible for cleaning and removing waste.

Focusing on which two central themes in biology would help a student understand why animals come in

different shapes and sizes?

a. cellular basis for life; homeostasis

b. structure and function; unity and diversity of life

c.matter and energy, homeostasis

d. science as a way of knowing; interdependence of nature

Answers

Answer:

b) structure and function

Explanation:

all animals do different things and play different roles in nature, so they have differnt structures and functions to help carry out those roles.    

Net Force:
N

Direction:

Balanced or Unbalanced:
PLEASE ANSWER PLEASE

Answers

Answer:

balanced

Explanation:

Since equal pressure is being applied from opposite sides, they cancel out. think about pushing a box from opposite sides. Its not gonna move. Hope I was a help! :)

Question 3 About how long does it take the Moon to make one trip around the Earth? a) week b) year c) month d) day​

Answers

Answer:

C) month

Explanation:

it takes around 27 days, so rounded that would be about a month

Question 2 (2 points)
Which of the following best explains why matter must travel through cycles?
a
There is an unlimited amount of matter in the universe, so it can take on any form at
any time.
b
There is a fixed amount of matter in the universe, so it must take on different forms
at different times.

Answers

The answer is A hopefully this helped

Elements flows within ecosystem in various ways. It is important for matter to travel through cycle as there is a fixed amount of matter in the universe, so needed to be recycled.

What is cycling of matter?

Matter cycling is movement of matter from one form to another or from one place to another on the Earth, inside its ecosystems.

Matter is constantly cycling from place to place, and this can have both positive or negative effects. Matter also cycles naturally, or can be due to human activity.

As there are only finite number of nutrients on the Earth, so, it is necessary for them to be recycled in order to ensure the continued existence of living organisms.

Thus, option b is correct.

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Told me to write her a five hundred-word essay on why I shouldnt wear my coat to class. Why? I asked her. I cant do that. howm I supposed to do that? She looked at me over her horned-rims. Her lips were white. She had her arms folded. The north wind coming up off the practice fields outside glazed the windowpanes along the wall with ice. Be creative, she said. I sat in the principals warm office and wrote a hundred sentences, like the ones Id written on the detention hall chalkboard for Mrs. Jaffrey after school: I will not wear my coat to class because someone might mistake me for a bear and shoot me. I will not wear my coat to class because I might sweat so much the class will flood, and somebody might drown. I will not wear my coat to class because I might get so hot, Ill catch fire and burn the whole Junior High down. That kind of thing. It was more than five hundred words. I thought it was pretty creative. Mrs. Jaffrey didnt think so, though. Neither did my old man. 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