can someone help please

(1) The first velocity of the car with two washers at the 0.25 meter mark is 0.125 m/s.

(2) The second velocity of the car with two washers at the 0.5 meter mark is 0.25 m/s.

Velocity is the rate of change of displacement with time. The velocity of the  cars depends on displacement and time of motion.

The first velocity is calculated as follows;

v1 = 0.25 m / t1

let t₁ = 2 s

v₁ = 0.25/2

v₁ = 0.125 m/s

v2 = 0.25 m / (t2 – t1)

let t₂ = 3 s

v₂ = 0.25(3 - 2)

v₂ = 0.25 m/s

Learn more about velocity here: https://brainly.com/question/6504879

Answer:

What is the first velocity of the car with one washer at the 0.25 meter mark?

1st  = 0.11 m/s

2nd = 0.13 m/s

3rd = 0.19 m/s

What is the second velocity of the car with one washer at the 0.50 meter mark?

1st = 0.28 m/s

2nd = 0.36 m/s

3rd = 0.45 m/s

Explanation:

trust

Answer:

Limiting factors are resources or other factors in the environment that can lower the population growth rate. Limiting factors include a low food supply and lack of space. Limiting factors can lower birth rates, increase death rates, or lead to emigration.

Explanation:

Answer:

25%

Explanation:

Answer:

Cell membranes, DNA, and Ribosomes

Hope this helps!!

Answer: Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA.

plasma membrane, ribosomes, cytoplasm, and DNA.

Answer:

True. The more threads a screw has the greater the holding power of the screw.

Explanation:

Answer:

a. Protein: Protease

b. Carbohydrate: Amylase

c. Fat/Oil: Lipase

Explanation: cause your nipples are swollen

Answer:

2: Shrubs and grasses

Explanation:

Shrubs and grasses are both first level consumers, obtaining their energy from the sun. They are also the source, essentially, of the entire food web's food sources.

Answer:

Nucleic Acids.

Explanation:

Nucleic acids pass off genetic information (found in the nucleus) to offsprings

Explanation:

the natural environment

or condition u live for example the land, air, plants , animals.

Answer:

The Sun rotates on its axis once in about 27 days. This rotation was first detected by observing the motion of sunspots. The Sun's rotation axis is tilted by about 7.25 degrees from the axis of the Earth's orbit so we see more of the Sun's north pole in September of each year and more of its south pole in March.

Since the Sun is a ball of gas/plasma, it does not have to rotate rigidly like the solid planets and moons do. In fact, the Sun's equatorial regions rotate faster (taking only about 24 days) than the polar regions (which rotate once in more than 30 days). The source of this "differential rotation" is an area of current research in solar astronomy.

Answer:

To explain this problem, evolutionist propose a mechanism of magnetic field breaking.

Explanation:

Answer:

premature death in people with heart or lung disease.

nonfatal heart attacks.

irregular heartbeat.

aggravated asthma.

decreased lung function.

The question is incomplete. Here is the complete question.

Three red square pieces of wood, four yellow square pieces, and five boue square pieces are put into a cloth bag. four re round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.

What are the chances that the piece is red round or blue round piece?

a. Cannot be determined

b. 1 chance out of 3

c. 1 chance out of 21

d. 15 chances out of 21

e. 1 chance out of 2

Because:

a. 1 of the 2 shapes is round

b. 15 of the 21 pieces are red or blue

c. There is no way to tell which piece will be picked

d. Only 1 of the 21 pieces is picked out of the bag

e. 1 of every 3 pieces is a red or blue round pieces

Answer: b. 1 chance out of 3

              e. 1 of every 3 pieces is a red or a blue round pieces

Explanation: Inside the bag, there will be:

The question is asking for a round red piece. The probability of that happening is

P(r) = [tex]\frac{4}{21}[/tex]

And a blue round piece:

P(b) = [tex]\frac{3}{21}[/tex]

It is a "OR" probability, so:

P(r or b) = [tex]\frac{4}{21} +\frac{3}{21}[/tex]

P(r or b) = [tex]\frac{7}{21}[/tex] or [tex]\frac{1}{3}[/tex]

Which means 1 out 3 pieces taken out of the bag will be red or blue.

Answer:

False

Explanation:

Heterotroph means energy is made through consuming another organism.

Autotroph means energy that is made through producing by itself.

A plant makes energy by itself

So a plant is an autotroph, so this statement is false.  

Answer:

hope this helps u

Explanation:

The contraction of the protoplast of a plant cell as a result of loss of water from the cell is called plasmolysis.

plzzzzz follow meeee❤❤❤❤

Answer:

D

Explanation:

Answer:

D

Explanation:

D is the correct answer, because the Cell Theory does not state what D says.

Answer:

The dorsolateral dermal plicae of the leopard frog are two pale, thickened bands of the dorsal skin extending posteriorly from each eye to the urostyle prominence While they are normally found in all areas of trunk skin, the largest ones are in the plicae

Explanation:

dermal plicae of the leopard frog are two pale, thickened bands of the dorsal skin extending posteriorly from each eye to the urostyle prominence. ... While they are normally found in all areas of trunk skin, the larg- est ones are in the plicae

Answer:

fossil fuels like coal, oil and natural gas

Explanation:comon sense

Answer:

cow farts, man breath, animals breath

Explanation:

cows are the #1 source of pollution

Plastids. Plant plastids are a group of closely related membrane-bound organelles that carry out many functions. They are responsible for photosynthesis, for storage of products such as starch, and for the synthesis of many types of molecules that are needed as cellular building blocks.

Answer:

t = 5.67 seconds

Explanation:

v=Vo + at

25 = 8 + 3t

17 = 3t

t = 5.67 seconds

Answer:

Yes

Explanation:

cause nothing is created or lost it is just cycled.

Yes, the carbon dioxide molecules existing today will be the same carbon dioxide molecules in a million years because the matter is not created or destroyed.

Carbon dioxide (CO2) is a colorless gas with a sour taste and a little harsh odor. It is one of the most significant greenhouse gases associated with global warming, but it only makes up a small portion of the atmosphere on Earth (roughly 3 volumes per 10,000).

It is produced during the combustion of carbon-containing materials, fermentation, and animal respiration, as well as during the photosynthesis of carbohydrates by plants.

The so-called greenhouse effect is caused by the gas because its presence in the atmosphere prevents part of the radiant energy that Earth receives from being reflected back into space.

In the industrial setting, it is recovered for a wide range of uses from flue gases, by-products of the hydrogen-preparation process for ammonia synthesis, lime kilns, and other sources.

Therefore, the same carbon dioxide will exist in a million years as today.

Read more about carbon dioxide, here

https://brainly.com/question/3049557

#SPJ2

Answer:

Here's what I put for my answer. I hope this help's a tiny bit!

Explanation:

Answer:

Here's what I put for my answer. I hope this help's a tiny bit!

Explanation:

Humpback whales are very big ocean animals, they have bumps all over their body and have a white stomach while the rest are almost black.

Humpback whales are very similar to other whales because of their size and features.

I do think some other existing species share an evolutionary lineage with humans or humpback whales. The blue whale as almost the same pattern and size of the Humpback whale.  And share some of the same DNA.

Explanation:

Answer:

C. a nebula

Explanation:

a supernova is when it explodes and then it turns into a black hole

Answer:

wow

Explanation:

good luck

Answer:

it will weather more quickly

Answer:

It's A

Explanation:

Answer:

The geologic time scale is the “calendar” for events in Earth history. It subdivides all time into named units of abstract time called—in descending order of duration—eons, eras, periods, epochs, and ages.

Explanation:

hope this helped please mark me brainlest ✨

Answer:

Explanation:

Ribosome works with ribonucleic acid to produce a functional protein. Translation takes place at the ribosome.

The endoplasmic reticulum helps in transport of proteins that are made by the ribosomes and folds them into sacs that are called cisternae from where it is moved to the Golgi apparatus.

Golgi apparatus served as store house for molecules that moved from endoplasmic reticulum. They are then released from the Golgi apparatus in what are called secretory vesicles into the cytoplasm.

Answer:

See the answer below

Explanation:

The nucleus is a double membrane organelle that is responsible for controlling the activities of the cell. It contains the DNA which carries the gene and the hereditary information of the cell.

The nucleoli are small spherical structures that are located within the nucleus which function in the formation of the ribosome and hence, important for protein synthesis in the eukaryotic organisms.

The ribosomes are structures within the cell which represent the site of protein synthesis. During protein synthesis, the mRNA and the tRNA attach themselves to the ribosome to form the translation complex for the initiation of protein synthesis.

The Golgi apparatus is a system of membrane responsible for the packaging and secretion of proteins and lipids within the cell.

Answer: B. Primary Succession

Answer: please inform me because i don’t see anything

Explanation:

girl where’s the pic of it

Answer:

it is a = exosphere b = biosphere and c = hydrosphere

Explanation:

the exosphere takes part in rocks and soil etc. the biosphere takes part of animals and plants etc. and the hydrosphere takes part of any water like lakes, oceans, ponds etc.

i hope i helped!