Answer:
Good one
Explanation:
Hydrogen has the highest thermal conductivity of any gas.
A vector points -1.55 units
along the x-axis, and 3.22 units
along the y-axis.
Find the direction of the vector.
Answer:[tex]\theta =64.29^{\circ}[/tex]
Explanation:
Given
Vector Points -1.55 units along x-axis
i.e. 1.55 units along negative x-axis
and 3.22 units along Y-axis
Direction of vector
[tex]\tan \theta =\frac{3.22}{1.55}[/tex]
[tex]\theta =tan ^{-1}(2.077)[/tex]
[tex]\theta =64.29^{\circ}[/tex]
Where [tex]\theta [/tex] is the angle made by vector with x-axis as shown in the diagram
Answer:
The answer is 115.70
Explanation:
whoever answers correctly first will get brainiest
whats my middle name....?
clues:
a_n_l i_ e
3 missing letters
fill in the blanks! hehe
Answer:
annalise
Explanation:
::::::::::)))))))))
Select the correct answer.
The motion of a car on a position-time graph is represented with a horizontal line. What does this indicate about the car's motion?
А.
It's not moving
B.
It's moving at a constant speed.
It's moving at a constant velocity
D. It's speeding up.
Answer:
a
Explanation:
Answer:
its a because its the only thing not moving
Explanation:
A horizontal line on a phase-change graph indicates
Answer:
A horizontal line on a phase change graph means there has been
no change. Often longer periods of research are needed to see
significant change.
What are the three types of sea ice and why is each important?
Answer: New Ice, Nilas, and young ice.
Explanation:
New ice is recently frozen sea water that does not yet make up solid ice.
Nilas is an ice that bends without breaking around waves and swells.
Young ice is a transition stage between nilas and first-year ice.
On a sky coaster (human pendulum) that reaches 20 meters from it's equilibrium position, a man of 70 kg is able to reach a maximum speed of
Answer:
Explanation:
Using the principle of conservation of energy, the potential energy is converted to kinetic energy, assuming any losses.
Kinetic energy is given by ½mv²
Potential energy is given by mgh
Where m is the mass, v is the velocity, g is acceleration due to gravity and h is the height.
Equating kinetic energy to be equal to potential energy then
½mv²=mgh
V
Making v the subject of the formula
v=√(2gh)
Substituting 9.81 m/s² for g and 20 m for h then
v=√(2*9.81*20)=19.799 m/s
Rounding off, v is approximately 20 m/s
Answer:
19.8 m/s
Explanation:
During the motion of a pemdulum bob, it casually converts kinetic energy to potential energy and vice versa.
A pendulum bob reaches its maximum speed at a position closest to its equilibrium position and has its lowest when it is farthest from the equilibrium position.
The maximum speed of a pendulum bob based on the mass involved and the maximum displacement from the equilibrium position is obtained from
Maximum kinetic energy = Maximum potential energy
Maximum potential energy occurs at the farthest point from equilibrium, that is,
P.E(max) = mgh
Maximum kinetic energy = ½mv²
½mv² = mgh
v = √2gh
g = acceleration due to gravity = 9.8 m/s²
h = farthest height from equilibrium position = 20 m
v = √(2×9.8×20) = 19.8 m/s
Hope this Helps!!!
Only refer from the community conservation article please. Will mark brainliest!!!!
1. Summarize the scientific information that leads to conservation in each of the articles.
2. What social issues affected the problem or its solution in each of the stories?
3. How did economics delay scientists' first attempts for conservation in each story?
4. Describe the political actions that led to successful conservation in both stories.
Trees are being felled at an alarming rate by people. Forests are home to numerous animals and people, and by removing trees from them, we are destroying their habitat and depriving them of a safe haven.
What is community conservation?Community conservation refers to a strategy for protecting the environment that acknowledges local residents' rights to manage wildlife or gain both direct and indirect benefits from it.
The gorillas' habitat, the forest, is being destroyed by humans. Additionally, people are harming these creatures, and if this continues, gorillas may become extinct.
There won't be as many resources from trees, like paper, if people cut down less of them, therefore prices could rise.
Prices for tourists will increase if fewer gorillas are still alive. That won't benefit visitors since they will have to pay more, and since some individuals don't have a lot of money, there will be fewer visitors.
Thus, this way, community conservation is mandatory.
For more details regarding community conservation, visit:
https://brainly.com/question/28850363
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When a feather and coin are dropped towards the surface of the earth , do they reach ground together
Answer:
The coin will reach the ground first.
Explanation:
Because feather's mass is very low in comparison to a coin and due to air present in earth's atmosphere it will come down slowly.
hope it helps!
Answer:
The coin
Explanation:
Because the coin is heavier than the feather
What type of phase change occurs when water vapor in the atmosphere changes to liquid water in clouds?
Answer:
condensation, the process of changing from a gas to a liquid
how do braces protect you while doing sports
Answer:
they don't, if you get hit in the face then the brackets are gonna rub up against the inside of your mouth then you'll bleed
Explanation:
The word gymnosperm comes from two Greek words: gymno, meaning bare, and sperm, meaning_____ . Unlike other seed plants, gymnosperms do not have a protective _______ around their seeds. Most gymnosperms have needle-like or scale-like ______.
Answer:
Seed, Fruit, Leaves
Explanation:
Gymno, meaning bare, and sperm, meaning seed. Unlike other seed plants, gymnosperms do not have a protective fruit around their seeds. Most gymnosperms have needle-like or scale-like leaves.
What are gymnosperms?A relatively tiny class of plants known as gymnosperms produce seeds and lack flowers. This means that unlike in a fruit, where the seeds are formed inside the reproductive structure, they are produced on the surface of the reproductive structure.
Gymnosperm can also be referred to by the less common word acrogymnospermae. It's a broad name for plants like conifers, ginkgo, cycads, and gnetophytes that you probably already know about. The word "gymnosperm" has Greek roots. The tube cell, the generative cell, and two prothallial cells make up the gymnosperm pollen grain's four cells.
Conifers make up the majority of the plant species in the gymnosperm family. In contrast to angiosperms, which produce flowers, gymnosperms create cones as their reproductive organs. Gymnosperms primarily consist of conifers, such as pine trees.
Learn more about gymnosperms, here:
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Animals have different types of respiratory systems depending on the environment of their habitat. Fish live in the water and use gills to breathe. Humans who live on land, breathe air through their lungs. Identify the similarities between lungs and gills.
Answer:
1. Both are respiratory organs found in vertebrates.
2. Both enable the inhalation of oxygen and exhalation of carbon dioxide in the bodies of their host.
3. Respiratory membranes present in both make the exchange of gases easier.
4. Blood vessels found around them enable the breathing process.
Explanation:
Gills are respiratory organs which can be found in animals that live in water. These include fishes, amphibians like frogs, anthropods like insects, and annelids like worms. Gills are surrounded by respiratory membranes known as gill lamellae which have a large surface area that makes breathing easier. Blood vessels also are found around gills.
The lung is also a respiratory organ found in humans. It runs from a windpipe known as the trachea and branches into bronchi which contain the bronchioles. Alveoli ducts contain alveoli sacs and then alveoli which are membranes that enable the breathing process.
Both are similar because they are respiratory organs found in animals with backbones. They are surrounded by blood vessels and membranes that make the breathing process easier.
A car takes 15 minutes to travel along a road that is 20 km long.
What is the average speed of the car?
A. 75 km/h B. 5.0 km/h C. 80 km/h D. 300 km/h
Answer:
C
Explanation:
15. 20
x4. x4
60. 80
80km/h
Answer:
80km/h
Explanation:
solution
given
d=20km
t=15min/60min=0.25h
s=?
s=d/t
s=20km/0.25h
s=80km/h
Which of the following atoms is considered neutral? An atom with 7 protons, 7 neutrons & 8 electrons An atom with 3 protons, 3 neutrons & 7 electrons An atom with 3 protons, 4 neutrons & 3 electrons An atom with 3 protons, 3 neutrons & 4 electrons
Answer:
The answer is the atom with 3 protons, 4 neutrons, and 3 electrons.
Explanation:
The reason why, is because protons are positive, neutrons are neutral, and electrons are negative. The protons cancel out the electrons, and the neutrons are just there.
Chuck's car is moving at 65.0m/s when he suddenly accelerates his car at 15.0m/s2 for 3.00s. How far did Chuck, and his car, travel while he was accelerating?
Answer:
x = 265.5 m
Explanation:
To find the distance traveled by the car you first use the following formula:
[tex]v=v_o+at[/tex] (1)
vo: initial velocity = 65.0m/s
a: acceleration = 15.0m/s^2
t: time = 3.00 s
you replace the values of vo, t and a in the equation (1) in order to calculate the final velocity v:
[tex]v=65.0m/s+15.0m/s^2(3.00s)[/tex] = 110 m/s
Next, you use the following formula:
[tex]v^2=v_o^2+2ax[/tex]
x: distance traveled
You do x the subject of the formula and replace the values of vo, v and a:
[tex]x=\frac{v^2-v_o^2}{2a}\\\\x=\frac{(110m/s)^2-(65.0m/s)^2}{2(15.0m/s^2)}=262.5\ m[/tex]
hence, the distance traveled by the car is 265.5 m
Come help me please
ThankS
Answer:
Pretty sure it's density since its measuring a crowd - Option B :)
Explanation:
A wave of wavelength 0.3 m travels 900 m in 3.0 s. Calculate its frequency.
Answer: 1000 Hz
Explanation:
You can calculate frequency by dividing velocity by wavelength
Frequency = velocity/wavelength
Find velocity first.
900 m/3 s = 300 m/s
Plug values in to find frequency.
F = (300 m/s)/0.3 m
F = 1000 Hz
At a grocery store, 20 fl oz of brand A vitamin
water is sold for $0.95. What is the unit price of
the vitamin water per ounce, to the nearest cents?
Answer:
0.05 cents per fl oz
Explanation:
0.95 divided by 20
0.0475 to the nearest cent 0.05
what is polarization
How were lion fish introduced to the areas around Florida
Answer:
I think this will answer your question. This is information is not mine and this rightfully belongs to columbia.edu.This brightly colored fish is native to the Indo-Pacific from Australia north to southern Japan and south to Micronesia. The lionfish is usually found in coral reefs of tropical waters, hovering in caves or near crevices. Native regions as well as Savannah, Georgia; Palm Beach and Boca Raton, Florida; Long Island, New York; Bermuda and possibly Charleston. In southern Florida and off the coast of the Carolinas in early to mid 1990s.
Answer:I really don't know sorry
Explanation:
A skier reaches the end of a 0.9 km track in 1.5 hours, at what speed does it travel?
(Please help,I need the answer as soon as possible)
Speed = Distance/Time
S = D/T
D = 0.9Km, T = 1.5hours,
S = 0.9/1.5
S = 0.6 m/s
hope it helps!
Answer: Speed =
distance = 0.9 * 1000 = 900 metres, because speed is measured in m/s so the km has to be converted to m
time = 1.5 * 60 = 90 seconds , because speed is measured in m/s so the time in minutes(m) has to be converted to seconds(s)
Speed =
= 10m/s
Read more on Brainly.com - https://brainly.com/question/11367821#readmore
Explanation: I don't know what this is but this is what I found and I hope it's helpful
If this inclined plane moves 3 cm to the left how high will it lift the object
Answer:
It would lift the object to the same height than before you move it 3 centimeters to the left. You see, the height doesn't change if you move the inclined plane horizontally, because height is a vertical variable.
Therefore, if the inclined plane has a height of 1 meters, then the object will be lifted 1 meters up, no matter if you move the inclined plane 50 meters horizontally, it won't change its height.
What are the four theories of the origin of the moon?
How do oxbow lakes form?
Explanation:
It is formed when a river creates a meander, due to the river's eroding bank. After a long period of time, the meander curves and cuts, forming an oxbow lake.
Answer:
c
Explanation:
I did the test and got it right. I promise :)
A starter pistol is fired 150m away from the spectators who hear the gun 0.5s after they see it fired. How fast does sound travel?
(Please help!)
Answer:
300m/s
Explanation:
speed = distance/time
150/0.5
Help I need a answer to this
Answer:
1700 Joules
Explanation:
Work=force x distance
Force = 170 kg
Distance= 10 Meters
170 x 10 = 1700 Joules of work
A circuit has a current of 3 A. How many coulombs of charge will pass by a point in the circuit in 2 seconds?
- 6C
- 5C
- 3/2 C
- 2/3 C
One of these are the answer..
6C
Explanation:
The quantity of charge, Q, passing through an electric circuit is dependent on the electric current, I, and the time taken, t, for the current to flow. It is given mathematically as follows
Q = I x t ------------------------------(i)
Where;
I is measured in Amperes(A)
t is measured in seconds (s)
Q is measure in coulombs (C)
From the question,
I = 3A
t = 2s
Substitute these values into equation (i) as follows;
Q = 3 x 2
Q = 6C
Therefore, the number of coulombs of charge that will pass is 6C
Adam observed properties of four different waves and recorded observations about the frequency and volume of each one in his chart. Which statement could Adam declare based on the data in the table
Is jump rope a sport.
Answer:
yes
Explanation:
scientific notation for 836
Answer:
8.36e2
Explanation:
Use a scientific calculator
Its notation is written as :
8.36 x 10^2
