Answer:
The best answer is - C. two-thirds.
Explanation:
Nuclear energy provides approximately 70% or two-thirds of the total energy production of France. The rest of the energy production of France comes from fossil fuels and renewable fuels or energy sources.
Fossil fuels are responsible for 7.1% and the other 22.9% are from renewable sources. These data are approximate values on the basis of the year 2018 energy production of France.
So, Nuclear power is the dominant source of energy in France.
Answer:
its D
Explanation:
Which of the following best compares the structures in protists and fungi that allow these organisms to explore their environment. Question 2 options: Protists and fungi move using cilia, flagella, and hyphae. Some protists move using cilia and flagella. Fungi do not move but have fast growing hyphae. Protists move using hyphae. Some fungi move using cilia, and flagella. Neither protists nor fungi have cilia, flagella, and hyphae. They obtain energy only if the food source moves by them.
Answer:
Some protists move using cilia and flagella. Fungi do not move but have fast growing hyphae.
Explanation:
trust me
How do I solve for the maximum height of someone who jumps straight up leaving the ground at 6.0 m/s.
Answer: 3.0 m/s
Explanation:
A skydiver of mass mmm jumps from a hot air balloon and falls a distance ddd before reaching a terminal velocity of magnitude vvv. Assume that the magnitude of the acceleration due to gravity is g.
Required:
Find the power Pd supplied by the drag force after the skydiver has reached terminal velocity v. (in same terms)
Answer:
Explanation:
When the object falling attains terminal velocity , net force on it becomes zero. That means drag force becomes equal and opposite to its weight.
So drag force = mg
where m is mass of falling body and g is acceleration due to gravity .
The drag force is constant . It is doing work against the weight of falling body . Object is falling v m /s . That means drag force is doing work per second as follows
Work done per second = force x displacement per second
= mg x v
So
Power of drag force = mgv.
Pd = mgv.
How is the Heisenberg uncertainty principle related to electron orbitals?
Explanation:
Introduction to the quantum mechanical model of the atom: Thinking about electrons as probabilistic matter waves using the de Broglie wavelength, the Schrödinger equation, and the Heisenberg uncertainty principle. Electron spin and the Stern-Gerlach experiment.
5. A runner of mass 60 kg accelerates at 2.0 m/s2 at the start of a
race. Calculate the force provided from her legs.
Answer:
F = 120 N
Explanation:
Given that,
The mass of a runner, m = 60 kg
Acceleration of the runner, a = 2 m/s²
We need to find the force provided from her legs. The formula for force is given by :
F = ma
Substitute all the values,
F = 60 kg × 2 m/s²
= 120 N
So, the required force is equal to 120 N.
Given:
Mass,
m = 60 kgAcceleration,
a = 2.0 m/s²As we know that,
→ [tex]Force = Mass\times Acceleration[/tex]
or,
→ [tex]F = ma[/tex]
then,
[tex]= 60\times 2.0[/tex]
[tex]= 120\ N[/tex]
Thus the above answer is right.
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4. A 3000 kg plane has an acceleration of 12 m/s/s on take off. What net force is exerted on the plane?
Answer: 36000 N
Explanation: I REALLY HOPE THIS HELPS I'M KINDA NEW AT THIS:] :]
How do you calculate the average velocity of mercury as it orbits the sun?
Answer:Hope this helps!!!!!
Explanation:
People are fascinated with high-speed travel. A Boeing 747 flies at about 550 miles per hour. The Concorde Supersonic Transport flew over twice as fast at about 1350 miles per hour. That is impressively fast, but consider the speeds that we passengers on planet Earth always travel. The circumference of the Earth at the equator is 24900 miles and the residents of the tropic areas travel that distance every 24 hours. They are traveling over a thousand miles an hour. At 38° latitude we are traveling about 820 miles per hour. That is quite impressive but it pales in comparison with the orbital speed of the Earth, The average distance of the Earth from sun is 93.5 million miles. This means that in 365.25 days the Earth travels 587.5 million miles. This works out to about 67 thousand miles per hour. This is the speed we travel 24 hours a day, 365.25 days a year.
The orbital velocity is 2πR/T where R is the average radius of the orbit and T is the length of the year. The orbital velocity of a planet relative to that of Earth's is then the relative radius divided by the relative length of the year.
The noble gases can be used to as laser mediums. How is the light from one gas different from light of other gases?
Answer:
light in the UV range.
Explanation:
Noble gases and halogens can combine to form lasers called Excimer, for this to happen the noble gas must be ionized with a high voltage discharge, thus forming a molecule of the type
noble gas (X) + halogen (H) → XH
This molecule is highly unstable and decomposes within a few nanoseconds, emitting light in the UV range.
The light from one gas is different from light of other gases such that they are
highly unstable.
Noble gases are also referred to as inert gases which form lasers under
some conditions.The lasers are formed when the noble gas undergo
ionization with a high voltage discharge.
The high instability and high decomposition rate which occurs within a few
nanoseconds emits light in the UV range thereby giving rise to them being
used as laser mediums.
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List 5 possible effects of not adhering to standards of measurement
Explanation:
Without the metric system, we'd have a different International System of Units, the metric system is important because 1mm is 0.1cm, 1 cm is 0.01m, with the imperial system the conversion is tedious. The most important feature of the metric system is its base in scientific fact and repeatable standards of measurement
At which position is the LOWEST potential energy?
A scientist discovers a fossil of an animal and places it in the fossil record. The organism’s bones are similar to the bones of animal T, which appears earlier in the fossil record. Which conclusion is most reasonable?(1 point)
The fossils came from the same organism.
The fossils are from an ancestor of animal T.
The fossils are from animals that lived at the same time.
The fossils are from a descendant of animal T.
DO NOT PROVIDE FALL ANSWERS/ NO ANSWER
A. The fossils cam from the same organism
Hope this helps!
The fossils came from the same organism. This conclusion is most reasonable.
What is fossil?A fossil is an item that has survived in the Earth's crust as a remnant, impression, or trace of an extinct animal or plant. The main repository for knowledge regarding the evolution of life on Earth is the complex of information preserved in fossils found all across the world.
Fossils of dinosaurs discovered in Alberta, Canada. Only a small percentage of extinct species have been preserved as fossils, and often only those with a sturdy skeleton are capable of doing so. A calcareous skeleton or shell is present in the majority of major groups of invertebrate creatures (e.g., corals, mollusks, brachiopods, bryozoans). Other types have silicon dioxide or calcium phosphate shells (both of which are found in the bones of vertebrates).
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17. How long does it take a giraffe running at a speed of 33 m/s to run 200 meters !
Answer:
6600sec
Explanation:
T=sv
T=200m*33m/s
T=6600sec
What are some indicators of energy transformations?
Explanation:
Contact, vision, sound, flavor, and smell are all markers of energy transformations. The most basic example would be when we notice something has begun to pass through vision. Whenever an entity accelerates or slows down, energy is constantly transformed.
Charges may be transferred by:
A) induction
B) insulation
C) reduction
D) conduction
Answer:
D) conduction
Explanation:
A vector is 0.888 m long and
points in a 205 degree
direction.
Find the y-component of the
vector.
hing
y-component (m)
Answer:
182.04
Explanation:
0.888×205=n
that where you the answer
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pols
10. MR. B HAS A MASS OF 88.96 KG. HOW MUCH DOES HE WEIGHT
IN JUPITER IF THE ACCELERATION DUE TO GRAVITY IN THAT PLANET IS
24.79 M/S ? USE W=MA.
HELP
Answer:
224.80kg
Explanation:
i just used like a calculator that can figure out the weight of someone on Jupiter i hope its right-
The recoil of a cannon is probably familiar to anyone who has watched pirate movies. This is a classic problem in momentum conservation. Consider a wheeled, 500 kg cannon firing a 2 kg cannonball horizontally from a ship. The ball leaves the cannon traveling at 200 m/s. At what speed does the cannon recoil as a result?
Answer:
0.8 m/s
Explanation:
From the question,
MV = mv............................. Equation 1
Where M = mass of the cannon, m = mass of the cannonball, V = velocity of the cannon, v = velocity of the cannon ball.
make V the subject of the equation
V = mv/M........................ Equation 2
Given: m = 2 kg, M = 500 kg, v = 200 m/s
Substitute these value into equation 2
V = (2×200)/500
V = 400/500
V = 0.8 m/s
What does it mean to say something is proportional?
Answer: When quantities have the same relative size. In other words they have the same ratio corresponding in size or amount to something else.
Explanation: Example: "A rope's length and weight are in proportion."
Example: "The punishment should be proportional to the crime"
Anya does 20 push-ups by applying a force to elevate her body off the ground. For each push up, she does 100 J of work and takes 2 seconds. How much power per push-up did she deliver?
A. 10 W
B. 50 W
С. 120 W
D. 200 W
Answer:
its 120 all u have to do is plus 100 and 20
When the Moon passes through Earth's penumbra, it is a:
a.Solar eclipse
b. Penumbral eclipse
c.Total lunar eclipse
d Partial eclipse
Answer: it is B
Explanation: A penumbral lunar eclipse occurs when the Moon passes through Earth's penumbra. The penumbra causes a subtle dimming of the lunar surface, which is only visible to the naked eye when about 70% of the Moon's diameter has immersed into Earth's penumbra.
Which of the following bounces light in another direction?
a) Sunglasses
b) lamp
c) mirror
d) prism
Answer:
I do believe the answer is D. prism
Answer:
Explanation:
either all of the above or D <3
2) Describe the qualities and the location of supergiant stars based on the H-R diagram.
Answer:
55
Explanation:
What is an effect of an object getting wet?
Answer:
once light hits a wet shirt, that water layer causes less of the blue shirt's blue wavelengths of light to be reflected toward your eyes and more of the blue light to be refracted, or bounce away from you, back into the fabric.
Explanation:
Hello, I need help answering and explaining the question in the attached image. It includes the figures plus the question and the multiple choice answers. Thank you!
Answer:
d.
Explanation:
Since the dart's initial speed v at angle has both vertical and horizontal components v₀sinθ and v₀cosθ respectively, the vertical component of the speed continues to decrease until it hits the target. It's displacement ,s is gotten from
s = y - y₀ = (v₀sinθ)t - 1/2gt² where y₀ = 0 m
y - 0 = (v₀sinθ)t - 1/2gt²
y = (v₀sinθ)t - 1/2gt²
which is the parabolic equation for the displacement of the dart.
Note that the horizontal component of the dart's velocity does not change during its motion.
Since the target falls vertically, with initial velocity u = 0 (since it was stationary before the string cut), it's displacement ,s' is gotten from
s' = y - y₀' = ut - 1/2gt² where y₀' = initial height of target above the ground
= (0 m/s)t - 1/2gt²
= 0 - 1/2gt²
y - y₀' = - 1/2gt²
y = y₀' - 1/2gt²
which is the parabolic equation for the displacement of the target.
The equation for both the displacement of the dart and the target can only be gotten if we considered vertical motion. So, the displacement component of both the dart and target are both vertical.
So, the answer is d.
TRUE or FALSE? If an object moves in a circle at a constant speed, its velocity vector will be constant. Explain your answer.
It's false. The length of the vector is going to remain the same but the direction is going to change.
What energy exists in the bonds that hold atoms together?
Answer:
Or between hydrogen and carbon (two atoms with very similar electronegativities) the bond energy is about 98 kcal. The larger the bond energy, the higher the amount of external energy it will take to pull the atoms apart, and thus the stronger the force holding the atoms together.
Explanation:
Plz mark brainliest thanks
Answer:
CHEMICAL ENERGY
Explanation:
Energy, Molecules and Chemical Reactions. Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.
What differences would you except if, at the same time you place a yellow and blue food colouring in both HOT and COLD water?
Fick's law of diffusion states that the rate of diffusion is directly proportional to the concentration gradient, and the surface area and inversely proportional to the membrane's thickness
The differences expected are;
Yellow or blue food coloring placed in HOT water is more evenly spread with timeYellow or blue food coloring placed in HOT water diffuses than when placed in COLD waterThe reasons why the above expected differences are correct are as follows:
Diffusion that is time dependent is given by the following equation based on the fluctuation-dissipation theorem;
D(t) = μ·[tex]k_B[/tex]·T·(1 - [tex]e^{-t/(m\cdot \mu )}[/tex])
Where;
μ = The particle mobility
[tex]k_B[/tex] = Boltzmann's constant
T = The temperature in Kelvin
m = The mass of the particle
t = The time
Therefore, the rate of diffusion is directly proportional to the temperature, given that the substances have the same molecular masses
The differences to expect if, at the same time you place a yellow and blue food coloring in both hot and cold water is that;
The rate of diffusion of the food coloring will be faster when placed in the hot water, due to the higher kinetic energy (moving faster) of the liquid particles to which the coloring is added, such that the differences are as follows;
Diffusion of the coloring is more evenly spread and at a faster rate when either the yellow or blue food coloring is placed in HOT water than when placed in COLD water
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Continental drift is______?
A:The movement of large land areas across earth's surface
B:The current that pushed Wegners hot air balloon
C:The movement of animals from Africa and South America
Answer is:
A:The movement of large land areas across earth's surface
Find the y-component of this
vector:
0.250 m
18.40
Remember, angles are measured from
the +x axis.
y-component (m)
Enter
Answer:
-0.0789 m
Explanation:
Recall that the y-component comes associated with the sin(18.4) through the following trigonometric relationship:
y = 0.250 sin(-18.4) ≈ -0.0789 m
Notice it is negative since it is below the x-axis.
Kara drops a rock from the edge of a cliff and it takes 7.00 s for the rock to reach the ground. What is the cliff’s height?
Answer:
h = 204.1 m
Explanation:
Given that,
Time taken to reach the ground, t = 7 s
We need to find the height of the cliff. We can find it using second equation of kinematics as follows :
[tex]h=ut+\dfrac{1}{2}at^2[/tex]
Here,
u = 0 (at rest initially)
a = g
So,
[tex]h=\dfrac{1}{2}gt^2\\\\h=\dfrac{1}{2}\times 9.8\times 7^2\\\\h=204.1\ m[/tex]
So, the cliff's height is 204.1 m.