Answer:
It's actually C. food webs
Explanation:
took the test
Answer: c
Explanation:
edge 2020
This is a sign of a chemical reaction that involves a new color being created during the reaction.
Answer:
The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.
The mercury manometer of fig. P2.57 indicates a differential reading of 0.30 m when the pressure in pipe a is 30-mm hg vacuum. Determine the pressure in pipe
b.
Answer:
The pressure in pipe b is 33.4 kpa.
Explanation:
Given that,
Pressure in pipe a = 30 mm hg vacuum
Differential reading = 0.30 m
We need to calculate the pressure in pipe b
Using diagram
[tex]P_{B}+W_{oil}(h_{1}+h_{2})-W_{Hg}(h_{2})-W_{H_{O}}(h_{1})=P_{A}[/tex]
Where, P = pressure
W= specific weight
Put the value into the formula
[tex]P_{B}+W_{oil}(0.15+0.30)-W_{Hg}(0.3)-W_{H_{2}O}(0.15)=-W_{Hg}(0.030)[/tex]
Put the value of specific weight
[tex]P_{B}=-(133)\times(0.030)-(8.95)\times(0.45)+133\times(0.3)+9.80\times0.15[/tex]
[tex]P_{B}=33.4\ kPa[/tex]
Hence, The pressure in pipe b is 33.4 kpa.
Submit the assignment following the instructions in the lesson assessment 01.05 measuring physical properties
Answer:jeff gordon is a boss
Explanation: i am so cool thats how i know its correct
how to increase current
Answer:
So to increase current of the circuit what you can do is :
1. Use conductor of low resistivity, ¶.
2. Use conductor of small length.
3. Use thick wire.
4. Decrease the temperature of the circuit.
5. If operating temprature is high than use semiconductor, because it have negative temprature coefficient.
6. Minimise the circuit losses.
Answer:
by making dam into near the water resource
Which body system is most closely associated with transport and delivery?
It is Cardiovascular.
The body system that is most closely associated with transport and delivery is known as the cardiovascular.
What do you mean by Body system?The Body system may be defined as the collection of specific organs and tissues that work together in order to accomplish some important functions for the body. For example, the circulatory system plays an important role in the migration of oxygen and nutrients to each cell of the body via the blood.
The cardiovascular system effectively delivers numerous nutrients, hormones, oxygen, and other important substance to each cell of the body in order to facilitate the survivability of cells and entire organisms.
Therefore, the cardiovascular system is a type of body system that is most closely associated with transport and delivery.
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Which option gives an object's volume in Sl units?
A. 3.4 L
B. 2.6 m3
C. 5.5K
D. 4.3 kg
Answer:
B.
Explanation:
K is the SI unit for Kelvin which measures temperature.
kg is NOT an SI unit, g is the SI unit for mass.
L is NOT an SI unit, m^3 is the SI unit for volume.
Therefore the answer is B.
Calculate the average speed of Terri's trip.
Answer:
please provide more information about the question so that I can help you
Calculate the change in time for each quarter of the track. Record the change in time in Table E of your Student Guide. The change in time for the first quarter is seconds. The change in time for the second quarter is seconds. The change in time for the third quarter is seconds. The change in time for the fourth quarter is seconds.
Answer:
Answer:first 1.39
second 0.78
third 0.64
fourth 0.54
Explanation:just did it
Explanation:
Answer:
this is it
Explanation:
which of the following is a class of wave in physics
A. Ripple tank
B. Electromagnetic
C. Stationary
D. longitudinal
Answer: They are all types of waves
A. Ripple tank
B. Electromagnetic wave
C. Stationary wave
D. longitudinalwave
Explanation:
A biker goes out for a ride and begins riding North at 18 km/h for 200 minutes, then the driver turns around and rides at 12 km/h South for another 50 minutes.
Answer:
Explanation:
18 km / h
= 300 m / min
12 km / h = 200 m / min
distance travelled in 200 minutes = 300 x 200 = 60000 m
distance travelled in 50 minute in return journey = 200 x 50 = 10000 m
total distance travelled = 70000 m
total time = 250 minute
speed = 70000 / 250
= 280 m / min
= 16.8 km / h
Total displacement = 60000 - 10000 = 50000 m
total time = 250 min
velocity = 50000 / 250
= 200 m / min
= 12 km / h
a marble is shot horizontally from a table .8 m High, and it lands, 1.2 meters away horizontally. what was the initial velocity of the marble as it left the table
Answer:
3 m/s
Explanation:
First, find the time it takes to land.
Given in the y direction:
Δy = 0.8 m
v₀ = 0 m/s
a = 10 m/s²
Find: t
Δy = v₀ t + ½ at²
0.8 m = (0 m/s) t + ½ (10 m/s²) t²
t = 0.4 s
Next, find the velocity needed to travel 1.2 m in that time.
Given in the x direction:
Δx = 1.2 m
a = 0 m/s²
t = 0.4 s
Find: v₀
Δx = v₀ t + ½ at²
1.2 m = v₀ (0.4 s) + ½ (0 m/s²) (0.4 s)²
v₀ = 3 m/s
5. Scientists studying bull sperm whales off the coast of South Africa have
calculated that these mammals can descend to depths of nearly 3,000 m during
their search for food. What is this depth in kilometers?
If Justin races his Chevy S-10 down highway 37 north for 2,560 meters in 60 seconds, what is
his velocity? a. Draw Justin's trip. What are his distance and displacement? b. The Chevy S-10
started rounding at 10 meters per hour. What is the acceleration at 30 seconds on the
highway? c. The S-10 has a force of 30 N. What is the mass of the car?
Answer:
A.) 42.7 m/s
B.) 0.33 m/s^2
C.) 90 kg
Explanation:
A.) If Justin races his Chevy S-10 down highway 37 north for 2,560 meters in 60 seconds, what is his velocity?
Velocity = displacement/time
Velocity = 2560/60
Velocity = 42.67 m/s
B.) The Chevy S-10 started rounding at 10 meters per hour. What is the acceleration at 30 seconds on the highway?
Acceleration = velocity/time
Acceleration = 10/30
Acceleration = 0.33 m/s^2
C.) The S-10 has a force of 30 N. What is the mass of the car?
Force = mass × acceleration
30 = mass × 0.33
Mass = 30/ 0.33
Mass = 90 kg
Why do u think women basketball is not as popular as men’s basketball
Answer: Look, the main difference between men's and women's college basketball is the attention the programs and players get. The women's ball is slightly smaller than the men's ball. ... Men get a thirty-five-second shot clock, while women only get a thirty-second shot clock.
a 12 lb bowling ball goes faster than a 15lb ball when thrown with the same force. Why is this Newton's 2nd law of motion? Please I need an explanation.
Answer:
This is Newton's 2nd law of motion because Newton's second law pays more attention to the mass of the object and amount of force is being put from the object.
You are driving down a two-lane road at 45 mph. The oncoming vehicle�s right wheels drop off the pavement. The most likely occurrence is...
Answer:
a)The vehicle will enter your lane
Explanation:
The complete question is
You are driving down a two-lane road at 45 mph. The oncoming vehicle's right wheels drop off the pavement. The most likely occurrence is...
a)The vehicle will enter your lane
b)The vehicle will continue on the shoulder of the road.
c)The vehicle will spin out and hit a tree.
d)The vehicle will return smoothly back onto the road.
The dropping off of the oncoming vehicle's right wheel off the pavement will force the driver to overturn to the left towards you, and this might lead to the vehicle entering your own lane.
Which state(s) of matter have no definite shape or volume? liquids and solids liquids and gasses gasses solids
Answer:
c gasses
Explanation:
Liquid and gases state(s) of matter have no definite shape or volume
What is the matter?Anything which has mass and occupies space is known as matter, mainly there are four states of matter solid liquid gases, and plasma.
These different states of matter have different characteristics according to which they vary their volume and shape.
The solid has a definite shape and definite volume because the atoms and molecules of the solid are very close to each other forming a great bond structure.
The liquid and gaseous state have their atoms and molecules apart from each other forming a loose bonding structure because this liquid does not have a fixed shape it takes the shape of the container, similarly, gases, their atoms are far apart from each other that's why they don't have fixed shape or the fixed volume.
States of matter those have no definite shape or volume are liquids and gases.
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why should we conserve biodiversity
If two people answer i will give brainliest to the first one that answers if right
What term best classifies cell A?
Choose 1 answer:
(Choice A) A Plant cell
(Choice B) B Fungal cell
(Choice C) C Animal cell
(Choice D) D Bacterial cell
Answer:
Choice A) A Plant cell
Explanation:
what type of quantity is frequency
What is the maximum energy that can be transferred to an electron in a hard collision by a 25 MeV
a) Electron (according to convention)
b) Positron
c) Proton
d) Alpha particle
Answer:
Electrons
Explanation:
The electrons are called the subatomic particles. The electrons have one of the symbol of e-and β-. The electrons are the first generation of the Lepton particles. These are generally describe the elementary particles. These particles do not have components and substructure.
Like all other elements the electrons also exhibits some types of properties. These electrons also hit with another particles and start to diffracted in different direction like lights.
The wave property of the electrons can be observed with the help of experiment.
both nuclear fusion and nuclear fission reactions____
Answer:
releases large amounts of energy
Explanation:
If you walk 30 meters forwards, and then turn around and walk 25 meters backwards, what is the distance that you walked? What displacement do you have after this walk?
Given :
Walk in forward direction is 30 m .
Walk in backward direction is 25 m .
To Find :
The distance and displacement .
Solution :
We know , distance is total distance covered and displacement is distance between final and initial position .
So , distance travelled is :
D = 30 + 25 m = 55 m .
Now , we first move 30 m in forward direction and then 25 m in backward direction .
So , displacement is :
D = 30 - 25 m = 5 m .
Therefore , distance and displacement covered is 55 m and 5 m respectively .
Hence , this is the required solution .
Which of the following is a hypothesis?
A. Squid sometimes squirt ink.
B. What is a reason for squid to squirt ink?
C. If a squid is attacked by a predator, it will squirt ink.
D. All of the evidence accumulated by scientists over many years
shows that squid squirt ink to defend themselves.
Answer:
C
Explanation:
Hypothesis is one of the science methods. Hypothesis is the same as guessing. It's a scientific method that precedes observations.
According to the question asking that Which of the following is a hypothesis ?
The correct option is C which is
If a squid is attacked by a predator, it will squirt ink
It is an hypothesis because there is no experimental evidence to back it up.
Which organelle packages materials and distributes them throughout the cell?
O lysosome
O chloroplast
O Golgi body
O cell membrane
Answer:
golgi body
Explanation:
i took the test
Organelle packages materials and distributes them throughout the cell through the Golgi body (also known as the Golgi apparatus or Golgi complex). The correct option is C.
The Golgi body plays a crucial role in the packaging, modifying, and sorting of proteins and lipids synthesized in the endoplasmic reticulum (ER). It receives these molecules from the ER and then modifies them, such as by adding sugars or lipids. The Golgi apparatus then packages these molecules into vesicles and distributes them to their appropriate destinations within the cell, such as other organelles or the cell membrane.
A. Lysosome: Lysosomes are organelles responsible for the digestion of waste materials, cellular debris, and foreign substances. They contain enzymes that break down various molecules. Lysosomes are not involved in packaging and distributing materials throughout the cell.
B. Chloroplast: Chloroplasts are organelles found in plant cells responsible for photosynthesis, the process by which sunlight is converted into chemical energy. Chloroplasts are involved in producing energy-rich molecules (such as glucose) rather than packaging and distributing materials within the cell.
D. Cell membrane: The cell membrane (also known as the plasma membrane) is a semipermeable barrier that surrounds the cell, separating its internal environment from the external environment. While the cell membrane controls the entry and exit of substances into and out of the cell, it is not directly involved in packaging and distributing materials within the cell.
Therefore, the Golgi body is the correct answer as it specifically carries out the task of packaging and distributing materials throughout the cell.
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Rank the nonmetals in each set from most reactive (1) to least reactive (3). Bromine: Chlorine: lodine:
Answer:
2,1,3
Explanation:
Edge 2020
Match each physical property of matter to the appropriate definition
conductivity
density
buoyant force
solubility
boiling point
probably a little late on this but the dude got everything wrong heres a screenshot of the answers.
Solubility: the ability of a substance to dissolve in another.
Density: the amount of mass in a given volume.
Buoyant force: the upward force on an object in a fluid.
Conductivity: the ability of a substance to transfer heat or electricity.
Boiling point: the temperature at which a liquid becomes a gas.
Solubility can be defined as a measure of how readily a substance dissolves in a solvent to form a solution.
Hence, a substance is typically considered to be soluble if it is able it dissolve completely in a solvent.Density can be defined as mass all over the volume of an object.
Simply stated, density is mass per unit volume of an object.Buoyancy can be defined as an upward force created by the fluid (liquid) displaced by an object.
Conductivity can be defined as the ability of an object, substance or body to transfer heat or electricity to another.
Boiling point is the temperature at which a physical matter changes phase from liquid to gas.
For example, the boiling point of water is 100 degree Celsius (100°C).Find more information here: https://brainly.com/question/21371565
1. In a biology experiment the number of yeast cells is determined after 24 hours of growth at
different temperatures.
a) Identify the independent and dependent variables in the experiment.
Answer:
In a biology experiment the number of yeast cells is determined after 24 hours of culture at different temperatures. a) Identify the independent and dependent variables in the experiment. b) Draw the graph of the
Explanation:
A fast Humvee drove from desert A to desert B. For the first 12
hours, it travelled at an average speed of 185 km/h. For the
next 13 hours, it travelled at an average speed of 160 km/h.
What was the average speed of the whole journey?
km/h
Answer: 172
Explanation: Because yeah
Urination is one of the key mechanisms for losing fluid from the human body.
Answer:
TRUE. so is breathing, sweating
hope this helped :)