Un tanque cilindrico de gasolina tiene 3 m de altura y 1.2 m de diámetro. ¿Cuántos kilogramos de gasolina es capaz de almacenar el tanque?
Plan: Para calcular la masa, primero debemos determinar el volumen del cilindro circular
derecho (V = irr2h), donde r = jD = 0.60 m. Por tanto, la masa se determina a partir de
la ecuación (15.1).
Solución: El volumen es
V = 7rr2h = 7t(0.6 m)2(3 m); V = 3.39 m3
Al resolver la ecuación de la densidad para m tenemos
m = pV = (680 kg/m3)(3.39 m3); m = 2310 kg
Otro método para indicar las densidades de las sustancias es la comparación su densidad
con la densidad del agua. La relación de la densidad de la sustancia con respecto a la del agua
se vuelve entonces la gravedad específica, la cual es una cantidad sin dimensiones. Si un
objeto tiene el doble de densidad que el agua, su gravedad específica es 2; un objeto que tiene
una tercera parte de densidad que el agua tiene una densidad relativa de 1/3.
La gravedad específica de una sustancia se define como la razón de su densidad con respecto a la densidad del agua a 4°C (1 000 k g /m 3).
Un mejor nombre para esta cantidad es densidad relativa, pero el término gravedad específica
se usa más ampliamente.

Answer:

HOLA, como estas?

Explanation:

Answer:

Vol+=+pi%2Ar%5E2%2Ah r = 0,6, h = 3

Masa+=+Vol%2A0,7 kg

Explanation:

What is climate change? O A. Lange-scale changes to weather patterns B. Increasing temperatures only C. Natural cycles of cooling and heating D. Decreasing temperatures only ​

After which event will ecological succession most likely happen

Who suggested that the distance of a galaxy is proportional to its recessional speed

How do invisible things such as sound and Wi-Fi internet travel from place to place?​

Counting a few organisms with in a population and multiplying that number
to estimate the total size of a population is an example of *

Which of the following would be classified as a renewable resource?
O A barrel of oil that would take 8 million years to form.
A large piece of coal that would take 4 million years to form.
O Solar rays from the Sun that take 8 minutes to reach the Earth.
O Methane gas from the ocean floor that takes 7 thousand years to outgas.

There has a been decrease in the diversity of plants in the grasslands of the Edward's plateau. What has caused this to occur?

Which feature must a community have in order to use wind energy?
A. An average elevation change of 20 feet per mile to allow the wind
to flow downhill
B. Molten rock near groundwater supplies
C. Nets to keep birds and bats away from the turbines
D. An average wind speed of at least 15 miles per hour and enough
land to build several wind turbines
PLEASE HELP ASAP

Which number would show a Full Moon while on the surface of Earth looking up?

PLS HELP! When I let go of a rock it falls down. What happens explain

Is a bird calls warning for prey a physical or behavioral adaptation?
Is an animals body temperature changing a physical or behavioral adaptation?
Is birds flying to high ground when they sense movement a physical or behavioral adaptation?

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After fertilization, the successful development of a mature, full-term fetus depends on A. The release of human chorionic gonadotropin (hCG) by the developing placenta AND the production of estrogen and progesterone by the placental tissues B. the release of human chorionic gonadotropin (hCG) by the developing placenta C. maintenance of the corpus luteum for all 9 months D. all of these E. the production of estrogen and progesterone by the placental tissues

Pretest: World Trade and communication
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Select the correct answer from each drop-down menu.
What type of grain farming generally occurs in the United States?
This type of farming relles heavily on
Farmers in the United States are engaged in
to cultivate large areas of land.

The diagram shows the life cycle of a pine tree. What happens during the stage labeled 6?

When sea ice melts, there will be a significant amount of sea level rise.
O True
O False

Flowering Locus C (FLC) is a gene that is responsible for flowering in certain plants. FLC is expressed in new seedlings, which prevents flowering. Upon exposure to cold temperatures, FLC expression decreases and the plant flowers. FLC is regulated through epigenetic modifications. What type of epigenetic modifications are present in new seedlings and after cold exposure

A scientist is observing various phenomena in the environment. He wants to plot the position of various objects as a function of time. Which plot will yield a periodic wave?
A.
the position of a baseball player rounding the bases
B.
the position of a roller-coaster car traveling along a track
C.
the position of a sticker on a wheel rolling along the road
D.
the position of a raindrop falling to the ground

name the gas which is produced during respirated​

For decades, scientists relied on the fossil record and comparative anatomy to assemble evolutionary lineages. Which statement describes a limitation of these methods? (1 point) They are no longer relevant because the fossil record is complete. They can show false relationships between organisms that are not reflected in the DNA. They are not reliable evidence of how the body structures of organisms evolved. They cannot be used to determine when species evolved.

Select the correct answer.
Many farmers in United States rear animals for their meat and wool. The animals remain in confined spaces and feed on grains. Farmers give
growth hormones to these animals to hasten and increase their growth. Which type of farming are these farmers practicing?
OA. traditional livestock ranching
OB
modern livestock ranching
Ос. .
sedentary tillage
OD
nomadic herding

Which part always comes FIRST in the scientific name?

Please help!!!!!!!

1. Which data shows that Neanderthals are not the ancestors of modern humans?
A.Differences in Neanderthals and human DNA.
B.Evidence from Neanderthals burial grounds
C.Muscular build of Neanderthals as compared to humans
D.Patterns of Neanderthal extinction.

2. Which mammal is most closely related to bats (chiropterans)
A. Carnivorans
B. Xernarthans
C. Primates
D. Rodentains

3. Which radioactive isotope would be used to determine the specific age of a Paleozoic rock formation?
A. Beryllium-10(1.5 million years)
B. Carbon-14(5715 years)
C. Thorium-232(14 billion years)
D. Uranium-235(704 million years)

4. According to the Hardy- Weinberg principle, which situation would disrupt genetic equilibrium?

A. A large pop of deer inhabits a forest region.
B. A particular pop of flies mates randomly.
C. A pop of flowering plants always has the same group of natural predators.
D. A small pop of birds colonizes a new island.

5. According to the endosymbiont theory, which part of the eukaryotic cell evolved from a prokaryotic cell?
A. Chloroplast
B. Golgi apparatus
C. Nuclease
D. Ribosome

Which statement best explains how periods on the periodic table are organized?
A. increasing atomic number from left to right
B. increasing number of neutrons from left to right
C. decreasing number of electrons from left to right
D. decreasing atomic mass number from left to right

What do folded mountains indicate happened in an area?

(A) Tectonic plates have been sliding past each other

(B) Tectonic plates have stopped moving and remained still.

(C) Tectonic plates have been travelling away from each other.

(D) Tectonic plates have collided and pushed against each other.

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Which statement is part of Darwin’s theory of evolution by natural selection?

A). Acquired characteristics that are inherited are the cause of evolution.

B). The organisms that are the fittest are always largest and strongest.

C). The number of offspring is not related to fitness.

D). More offspring are produced than can possibly survive.

Please!! I’ll give you lots of points!! PHow do the sensory spines most likely help the cockroach
survive in its environment?
A. They improve the cockroach's vision so it can see
predators sooner.
B. They allow the cockroach to change its body shape
to confuse predators.
C. They reduce the friction along the top of the
cockroach so it can move faster than predators.
D. They allow the cockroach to move through small
spaces where it is unable to use its feet to escape
predators.

Using what you read in this passage, evaluate the following vacation
activities. Which one would cause the least disruption of the balance of
the coral reef?
A
Sport fishing on the reef
B
Scuba diving to view the reef species
с
Collecting rocks and shells as souvenirs
D
Attracting sharks to the reef with bait for photos

Name three reasons why the atmosphere is important to life on earth and explain your reasoning.

A person is observing the oscillations of a wave. If the wave source begins to move away from the person, what will the person notice?

A.
The wavelength will decrease.
B.
The wave appears to have a different amplitude.
C.
The wave appears to change speed.
D.
The wave appears to oscillate at a different rate.