BIOLOGY HIGH SCHOOL

A box with a mass of 7 kilograms is pushed up a ramp to a height of 5 meters. what is the work done against the force of gravity? assume the ramp has negligible friction.

Answers

Answer 1

Answer:

Answer: The work done by the ramp against the force of gravity is -343 J

Explanation:

Work is defined as the force that is causing the movement or displacement of an object.

Mathematically,

$W=F* d$

We know that:

$F=m* g$

where,

W = work done by the ramp = ?

m = mass of the box = 7 kg

g = acceleration due to gravity = $-9.8m/s^2$ (Negative sign appears because it is acting against the gravity)

d = displacement = 5 m

Putting values in above equation, we get:

$W=7kg* (-9.8m/s^2)* 5m\n\nW=-343J$

Hence, the work done by the ramp against the force of gravity is -343 J

Answer 2

Answer: so work done = mgh = 7×10×5 = 350 joules

so answer is 350 joules !!

Related Questions

HELP ITS URGENT!!!! I will give brainleist and thanks please help!!!!Which of the following will a single nucleotide of deoxyribonucleic acid (DNA) always contain? A. a five carbon sugar, a nitrogenous base, and a phosphate group B. a five carbon sugar, an amino acid, and a carboxyl group a polysaccharide, an amino acid, and a phosphate group C. D. a polysaccharide, a nitrogenous base, and a carboxyl group
Unlike plant cell animal cell contain
Two ways that bacteria cause disease are
Blood cells are made in your
How do body systems work togther to defend from illness or injury in the human body or in other animals

Carol is enjoying eating her dinner. While eating, she notices that her saliva secretion is higher than normal and that she feels good and relaxed. What causes this relaxed state?

Answers

Parasympathetic nervous system

Which of these buildings is most likely to have indoor air pollution

Answers

The building from the list provided with the highest likelihood of air pollution is a tightly sealed house with an unvented water heater. The school with leaks will let air exchange happen so that isn't it, and having a carbon monoxide detector only reports existing air pollution it doesn't prevent air pollution, it could have issues but we don't know. The tightly sealed house with the unvented water heater is a near sure thing.

when heater is on for long time without having ventilation then carbondioxide will be converted into carbon monoxide and causes air pollution.

So according to above explanation,

C. A tightly sealed house with an unvented water heater, is the correct answer.

Can someone explain to me what chromosomes are, and also explain briefly and understandably grade 10/ 10th grade biology term 1 with genetics and stuff? Thanks heaps if you can :D

Answers

Chromosomes are what the mother and father donate to the fetus in order to compose your basic genetics

The father gives half which is 25 and the mother gives 23

The reason for this is when a baby is being created it is given a gender. That gender is either boy or girl the boy has an added chromosome at the near middle of gestation and the girl lacks that last chromosome so thats why the father gives more chromosomes than the mother

In an experiment, Theresa measured 15.00 mL of water. She must have used a

Answers

transfer pipet that had markings every 0.1 mL. . Heres A Link To The Quizlet w Similar Answers To Your Similar Questions https://quizlet.com/86478626/chemistry-chapter-1-topic-review-flash-cards/

test tube
or a glass that mesured the amount of water

Which of the following are gene products?mRNA
tRNA
tRNA synthetase
promoter
allele
nucleic acid

Answers

Answer:

I think its tRNA

Explanation:

Which is the best characteristic that distinguishes the kingdom Archaebacteria from the kingdom Eubacteria

Answers

i WOULD SAY...
The archaebacteria - are found in more complex areas such as a volcanic and bottom of the sea.
Eubacteria are the most common ones. Their found everywhere, in our bodies, food, etc.

Answer: cell wall structure

Explanation:

Other Questions

Scientists think that chimpanzees and gorillas share a common ancestor. Today, it is not possible for a chimpanzee and gorilla to mate and produce fertile offspring.What is this an example of? A.succession B.natural selection C.spontaneous generation D.speciation

Roly-poly bugs will move around in no particular direction until they find a suitable moist spot. This kind of random movement in animals is known as _____.a. kineses b. symbiosis c. mimicry d. commensalism

Why omnivores may not Always stay un the Same trophic level?

What do we call the naming system used in Biology to name all organisms?