Answer: first blank: kinetic
Second blank: potential
Explanation:
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an empty boat floats in water with 10% of its volume submerged. and when it is loaded with 1200kg , the volume submerged will increase to 70% of the total volume . calculate the mass of the empty boat
Let volume of empty boat be = 100% = 1V
and mass of boat be M
In water 10%, 0.1V of the volume is submerged.
Mass, m of 1200kg increases the submerging from 10%, 0.1V to 70%, 0.7V
M leads to 0.1V boat submerging
boat submerging.
M + 1200kg leads to 0.7V boat submerging.
This is 60%, 0.6 V increase
By comparison
(M+1200kg) * 0.1V = 0.7V * M
0.1M + 120kg = 0.7M
120kg = 0.7M - 0.1M
120kg = 0.6M
M = (120/0.6)kg
M = 200kg.
The mass of the boat is 200kg.
An airplane during departure has a constant acceleration of 3 m / s².
a. What is the speed that the plane reaches in 4 s?
b. If the plane passes at a flight point of
at a speed of 20 m / s, what is the speed 8 s later?
Constant acceleration of plane = 3m/s²
a) Speed of the plane after 4s
Acceleration = speed/time
3m/s² = speed/4s
S = 12m/s
The speed of the plane after 4s is 12m/s.
b) Flight point will be termed as the point the plane got initial speed, u, 20m/s
Find speed after 8s, v
a = 3m/s²
from,
a = v - u
t
3 = v - 20
8
24 = v - 20
v = 44m/s
After 8s the plane would've 44m/s speed.
When a person speaks, a sound intensity is generated that is 600 times greater than when the person whispers. What is the difference in decibels between the sound level when the person speaks compared to when she whispers
Answer:
Originally : Level = log I / I0
Currently: Level = 10 log I / I0
Level = 10 log 600 = 10 * 2.78 = 27.8
Note the term 1 bel = 10 decibels
how many atoms are in the moon??
The number of atoms on the moon is 1.33× 10¹⁵ atom.
What is an atom?The atom consists of matter that may be split without releasing electrical charges.
It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.
In the nucleus proton and the neutron is exists. The condition of the atom to be electrically neutral is that the number of the proton and electron should be the same.
The response is 1.33× 10¹⁵ atom. According to the Jefferson Lab of the US Department of Energy.
This answer is derived from an assessment of the number of atoms present in each of the Earth's constituent elements, such as silicon, iron, magnesium, sulfur, and silicon.
Hence the number of atoms on the moon is 1.33× 10¹⁵ atom.
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Jeremy ran a race at a speed of 15 m/s in a time of 8 seconds. Calculate the distance he ran.
Answer:
120 m/s if m/s means miles per second than
Explanation:
15 × 8
Answer:
d = 120 m
Explanation:
Data:
Speed (s) = 15 m/sTime (t) = 8 sDistance (d) = ?Use the formula:
d = s * tReplace with the data, and solve:
d = 15 m/s * 8 sd = 120 mThe distance is 120 meters.
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part 3 of 3
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What is the velocity when t = 8 s?
Answer in units of m/s.
Answer in units of m/s
Answer:
1 m/s
(i think, *nervous sweat*)
Explanation:
We can tell this by looking at the graph. When t = 8, we will look at the time. We see that when the x (time) is 8, the velocity is 1 m/s.
Can somebody explain to me what’s 1/d^2 in electric force? And how do I graph it versus a force?
Answer:
so basically what you gotta do is, and then you can do that but you shouldn't do this
which layer of the atmosphere has no definite outer limit?
To solve this, we must be knowing each and everything related to atmosphere. Therefore, thermosphere is the layer of the atmosphere has no definite outer limit.
What is atmosphere?
The atmosphere is more than simply the beautiful sky above. The atmosphere is made up of numerous levels of gases that surround the planet.
The word "atmo," which meaning vapor, smoke, or fog in Greek, is the source of the atmosphere's name. "Sphere" comes from the Greek word sphaira, which meaning ball. The term "atmosphere" refers to a vapor ball. Thermosphere is the layer of the atmosphere has no definite outer limit. The thermosphere is located between 53 miles (85 kilometers) and 375 mile (600 kilometers).
Therefore, thermosphere is the layer of the atmosphere has no definite outer limit.
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The exosphere is the layer of the atmosphere that has no clear outer limit. The exosphere is the Earth's atmosphere's outermost layer, extending from the top of the thermosphere to the edge of space.
The exosphere, unlike the other layers of the atmosphere, gradually transitions into the vacuum of outer space with no clearly defined border.
The density and spread out of gas molecules in the exosphere are exceedingly low.
This area is made up mostly of relatively light gases like hydrogen and helium, and it is where satellites and other spacecraft circle the Earth.
Thus, the progressive reduction in density as the atmosphere merges into space accounts for the lack of a well-defined outer boundary.
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A drag racer starts at rest and reaches a speed of 386.0 km/h with an average acceleration of 16.5 m/s2. How long does this acceleration take?
Answer:
about 16.5 by-
wait DO UR OWN MATH lol
Explanation:
what can be respresented by a force arrow weight or mass
Answer:
Force arrows are used to represent both the magnitude and direction of forces. The length of the arrow corresponds to the magnitude of the force, with longer arrows indicating forces with larger magnitudes. The direction of the arrow corresponds to the actual direction that the force is being exerted. Force arrows are used by scientists and engineers to predict the motion of an object based on the forces that are applied to it.
Let's go back to Amil and his box for a moment. To represent the force that he is exerting on the box, we can draw the box and then show the force using a force arrow, like this:
Explanation:
How would our force arrow change if he pushed the box with twice as much force? Because the magnitude of the force is doubled, the length of the force arrow should also be doubled.
Now, what if he didn't push directly to the right, but instead his arms made a 30-degree angle with the ground? In that case, the direction of the force arrow needs to change to show the direction in which the force is applied.
How is temperature related to the physical change of a substance
Answer:
Temperature is a measure of the kinetic energy of particles in a substance. As temperature increases, the atoms or molecules in a substance gain energy. As temperature decreases, the particles lose energy. A change in the energy of particles causes a change in their arrangement. A change in the arrangement of particles can lead to a physical change.
Explanation:
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What is something that you do not like, you can't explain it but, but u know u just don't like it. For me, i don't like closed doors. It makes me feel trapped
Answer:
religion
Explanation:
when I get asked this... what is your religion... I try to explain so the best explanation I can give is
believing in one god is like saying bread can't get wet
how did the discovery of eris force astronomers to reconsider the definition of planet?
Answer:
Explanation:
They had demoted Pluto on the basis of the discovery of Eris. They also discovered that Eris had a moon. It was thought to be much bigger than Pluto. That turned out not to be true. So having accepted Eris as a planet, they had to consider carefully what to do about Pluto. It has a gravitational constant of 0.82 m/s^2 which is 8.4% of that of our gravitational pull. and slightly more than Pluto.
Later data showed that these two objects in space were more like twins and that's what shook up the definition of a planet. You can't demote one and not the other.
an astronaut on an eva has wandered dangerously far away from the shuttle. she has also exhausted all the fuel in her jet pack. how can she get back to the shuttle?
The conservation of the momentum allows to find the result of how the astronaut can return to the spacecraft is:
Throwing the thruster away from the ship.
The momentum is defined as the product of the mass and the velocity of the body, for isolated systems the momentum is conserved. If we define the system as consisting of the astronaut and the evo propellant, this system is isolated and the internal forces become zero. Let's find the moment in two moments.
Initial instant. Astronaut and thrust together.
p₀ = 0
Final moment. The astronaut now the thruster in the opposite direction of the ship.
[tex]m_f[/tex] = m v + M v '
where m is propellant mass and M the astronaut mass.
As the moment is preserved.
0 = m v + M v ’
v ’= [tex]- \frac{m}{M} \ v[/tex]
We can see that the astronaut's speed is in the opposite direction to the propeller, that is, in the direction of the ship.
The magnitude of the velocity is given by the relationship between the masses.
In conclusion, using the conservation of the momentun we can find the result of how the astronaut can return to the ship is:
Throwing the thruster away from the ship.
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car starts from rest and reaches a velocity of 10 m/s in 10s a) Draw the v against t graph for the motion of the car? b) From the graph find: i) the slope of the graph. II) Area of the v against t graph bounded by the slope, on x-axis. c) What are the slope and area of v against t graph equal to respectively?
Explanation:
여기 당신의 대답이 있습니다. 즐겨 . 팔로우하고 브레인리스트로 표시해주세요
Answer:
The above answer is correct too, keep busy
What combination for distance and mass gives you the STRONGEST or LARGEST force?
Answer:Anything that has mass also has gravity. Objects with more mass have more gravity. Gravity also gets weaker with distance. So, the closer objects are to each other, the stronger their gravitational pull is.
Explanation:
the relative highness or lowness of a sound is called
explain why you cant see our reflection better in a piece of metal
Answer:
metal and glass are very smooth and reflect light back more directly this is called specular reflection if you look into a lake on a wide windless day you will be able to see your reflection because of the smooth surface of the water is producing the specular reflection rather than diffuse reflection
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Biết V0=4m/s , a=1m/s , t=5s
Answer:
hii bee bbtym tayo as a friend huhuhuhu
an atom with an overall negative charge is called?
Answer:
ANION is the answer
HELP PLEASE!!!! 20 POINTS
Answer:
You are correct the answer is D
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three energy changes that result in movements accuring in your body as sit down reading book?
Friction due to fluid is also called ___________
Friction due to fluid is also called DRAG
Answer:
Hey mate.....
Explanation:
This is ur answer....
Friction due to fluid is also called drag.
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What is the magnitude of the force that is exerted on a 15 kg mass to give it an acceleration of 5.0 m/s/s?
A jogger runs 12.0 blocks due east then 5.0 blocks due south. Find the magnitude of the joggers net displacement ?
Answer: 13.0 blocks
Explanation:
The horizontal rows on the periodic table are called
Answer:
periods or series
Explanation:
The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Elements in the periodic table are organized according to their properties.
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.)
What would the TABLE pane corresponding to the 2D MAP shown below look like?
latitude
30.2°
30°N
29.8°N
29.6°N
longitude
90.40
90.2°
90°W
89.8°
longitude : 89.6 W
Answer:
the correct answer is A the first map
trust i got a 100
Explanation:
Answers are the following:-
1. 33°N latitude, 112°W longitude ⇒ Phoenix, Arizona
2. 35°N latitude, 78°W longitude ⇒Raleigh, North Carolina
3. 46°N latitude, 96°W longitude ⇒ Fargo, North Dakota
4. 45°N latitude, 122°W longitude ⇒Portland, Oregon
5. 29°N latitude, 95°W longitude ⇒Houston, Texas
6. 43°N latitude, 79°W longitude ⇒Niagara Falls, New York
7. 25°N latitude, 80°W longitude ⇒ Miami, Florida
What is a longitude?The term Longitude has been refered as the horizontal lines that are the measurement east or west of the prime meridian. Longitude are the imaginary lines that divide the Earth. Longitudes are also called the meridians, which run from north to south pole to pole but they measure the distance east or west.
The hypothesis that the species diversity is greater at lower latitudes than higher latitudes because low-latitude habitats are older would be supported if speciation rates were: the same at high and low latitudes.
Species diversity can be defined as the number of species, present in an area or the ecosystem. More are the number of species, more diverse is the area is. The richness and functionality of an ecosystem is estimated through its diversity.
Therefore,longitudes are the horizontal lines which divide the Earth.
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write two examples of machine which changes the direction of force
Answer:
Washign machine and swingset
Explanation:
Given a table of values for the exponential function f(x) and a description of the
transformation for the function g(x)
, fill out the table of values based on the original
points for glx), the transformed function.
- 1
0
2
16
3
Reflect over
0
2
4
0-4, -1, -12
1
16
.
64
01, 1, 4, 16, 64
,
4, 1, , 162
0-1, -1, –4, – 16, – 64
Answer:its D
Explanation:
i did the test and got it right
The transformation function of the given exponential function is -1/4, -1, -4, -16, -64. Hence option D is correct.
What is an exponential function?An exponential function is a mathematical relation to find exponential growth or decay for the given data. It represents the constant change in independent variables and gives the same proportional change.
The exponential function is expressed as f(x) = exp (x) or eˣ where x is variable and e is constant which is called the base of the equation.
From the given,
the exponential function f(x) = 1/4, 1,4,16,64
The transformation function G(x) is the inverse of the exponential function and is equal to -1/4,-1, -4,-16,-64.
Hence, the ideal solution is option D.
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briefly explain distribution of charges on conductors
Answer:
The distribution of charge is the result of electron movement. Since conductors allow for electrons to be transported from particle to particle, a charged object will always distribute its charge until the overall repulsive forces between excess electrons is minimized.
Answer:
This is simply the movement and transportation of electrons