1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
viva [34]
3 years ago
14

Two forces F1 and F2 act on a particle. As a result the speed of the particle increases. Which one of the following is NOT possi

ble?Choose one answer.a. The work done by F1 is positive, and the work done by F2 is zero b. The work done by each force is positive. c. The work done by F1 is positive, and the work done by F2 is negative. d. The work done by each force is negative. e. The work done by F1 is zero, and the work done by F2 is positive.
Biology
1 answer:
ddd [48]3 years ago
3 0

Answer:

Option D, The work done by each force is negative

Explanation:

When both the forces are negative, then irrespective of which force is large or small, the net force will definitely negative. A negative force indicates reduction in kinetic energy of particle. Since mass is constant , it is the speed which reduces and produces negative work. Reduction in speed is contrasting to the statement give in the question. Hence, option D is not possible.

You might be interested in
Domestic cattle often have interactions with wild animals. In South America,
scZoUnD [109]

Answer:

Bats are the only mammals that can fly, but vampire bats have an even more interesting distinction—they are the only mammals that feed entirely on blood.

Nocturnal Behavior

These notorious bats sleep during the day in total darkness, suspended upside down from the roofs of caves. They typically gather in colonies of about 100 animals, but sometimes live in groups of 1,000 or more. In one year, a 100-bat colony can drink the blood of 25 cows.

During the darkest part of the night, common vampire bats emerge to hunt. Sleeping cattle and horses are their usual victims, but they have been known to feed on people as well. The bats drink their victim's blood for about 30 minutes. They don't remove enough blood to harm their host, but their bites can cause nasty infections and disease.

Hunting for Blood

Vampire bats strike their victims from the ground. They land near their prey and approach it on all fours. The bats have few teeth because of their liquid diet, but those they have are razor sharp. Each bat has a heat sensor on its nose that points it toward a spot where warm blood is flowing just beneath its victim's skin. After putting the bite on an animal, the vampire bat laps up the flowing blood with its tongue. Its saliva prevents the blood from clotting.

Young vampire bats feed not on blood but on milk. They cling tightly to their mothers, even in flight, and consume nothing but her milk for about three months.

The common vampire bat is found in the tropics of Mexico, Central America, and South America.

Hope it helps!

4 0
3 years ago
Explain how body symmetry is related to the phylogeny of animals.
Blizzard [7]

Do not worry so much about the why of classification. Classification is important because it is a lens through which to see what is there. It is not intrinsically true in and of itself. Distinctions are important only as vehicles for a common base of communication. All things have symmetry. A reflection has symmetry. Symmetry means organized life. Organized life is what happens when RNA replicates. It is the difference between chaos and order

4 0
3 years ago
How might you be able to tell if a plant in a garden needs more water?<br><br>​
Fofino [41]

Answer:

The first and most simple way is to stick your finger into the soil about an inch or so, if it is moist then your plant is well watered. If you find that your finger comes out dry then you may want to water your plants

Explanation:

6 0
3 years ago
The phylogeny of the family Hominidae indicates that living humans share a most recent common ancestor with the lineage includin
zlopas [31]

Answer:

The trait of walking on the knuckles or fists of their forelimbs explains this difference.

Explanation:

A phylogenetic tree can be described as a diagram which shows the ancestral history of organisms, It helps us to recognize which organisms might have had a common ancestor in the near past.

Hominini can be described as a primate of a taxonomic tribe  which comprises those species regarded as human or directly ancestral to humans.

The above description shows that humans got separated from these organisms because these organisms had the trait of walking by knuckles.

7 0
3 years ago
The correct unit for momentum is _____.<br> A. kg-s<br> B. kg-m<br> C. kg-m/s<br> D. kg-m/s²
DochEvi [55]

The correct unit for momentum is kg-m/s

4 0
3 years ago
Other questions:
  • What were some challenges to achieving the Human Genome Project’s goals?
    15·1 answer
  • Where does chemical digestion start in the body?
    14·2 answers
  • "survival of the fittest" may be a misleading phrase to describe the process of evolution by natural selection because:
    13·1 answer
  • Describe and define some aspect of exocytosis or endocytosis?
    12·1 answer
  • Which describes a group of organisms that is considered a species
    6·1 answer
  • Explain the process of mitosis in a tissue culture for cancer cells
    12·2 answers
  • Currently, the best defined method for transferring dna into certain archaeal cells is __________. currently, the best defined m
    12·1 answer
  • What is the measurement of population per unit area
    6·2 answers
  • I need help with this
    12·1 answer
  • The identification of key parts of both ____________ and _________ animals will be discussed as well as the selection __________
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!