Answer:
[tex]{ \boxed{ \sf{F = Bev}}}[/tex]
Explanation:
F » Force
B » Magnetic flux density
e » magnitude of charge
v » voltage
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Explain how the lithosphere, hydrosphere, and atmosphere individually and collectively affect the biosphere. (2 points)
The lithosphere is the solid layer of Earth, the hydrosphere is the water-based part, and the atmosphere is the air, they work together to shape the biosphere.
What is the lithosphere?The lithosphere is the soil part that composes the Earth's planet (i.e., the soil), the hydrosphere refers to oceans and all water bodies, while the atmosphere is the layer of air. These three layers interact with biotic factors to shape the biosphere.
In conclusion, the lithosphere is the solid layer of Earth, the hydrosphere is the water-based part, and the atmosphere is the air, they work together to shape the biosphere.
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Write the formular of force experienced by charge in electric field
Answer:
[tex]{ \sf{F=Ee}}[/tex]
Explanation:
F » Force
E » Electric field intensity
e » magnitude of charge
2. Match the following:
Larva 'of butterfly
10
Earthworm
Sole
Annelida
Vacuoles
Protozoa
Caterpillar
Storage tanks
Give birth to young ones
Dog
Paramecium
Answer:
Tricky man
Explanation:
Very tricky
Example of optical object
Answer:
Telescope,cameras
Hope it helped
Write any three condition required for nuclear fussion that are found in the sun.
Answer:
High pressure squeezes the hydrogen atoms together. They must be within 1x10-15 meters of each other to fuse. The sun uses its mass and the force of gravity to squeeze hydrogen atoms together in its core. We must squeeze hydrogen atoms together by using intense magnetic fields, powerful lasers or ion beams.
3. The equation of motion of a SHM oscillator is x=0.5msin(2πf)t, where x is in meter and t is in seconds. If the position of the oscillator is at x=0.25m and t=0.25s . what is the frequency of the oscillator ?
Answer:
f = 1/3 Hz
Explanation:
0.25 = 0.5 sin(2πf)0.25
0.5 = sin(0.5πf)
take arcsine of both sides in radians
0.52359 = 0.5πf
f = 0.52359 / 0.5π = 0.33333...
The frequency of the oscillator is 0.33 Hz.
We have an equation of SHM.
We have to identify the frequency of the oscillator.
What are the conditions for a motion to be Simple Harmonic ?The conditions are -
The restoring force must be proportional to the displacement.The restoring force should act opposite to the direction of motion with no drag forces or friction.According to the question, we have -
x = 0.5 sin(2πft)
Substituting the values -
0.25 = 0.5 sin(2πft)
sin(2πft) = 0.5
sin(2πft) = 1/2
sin(2πft) = sin(π/6)
2πft = π/6
2ft = 1/6
f = [tex]\frac{1}{12t}[/tex] = [tex]\frac{1}{12\times 0.25}[/tex] = 0.33 Hz
f = 0.33 Hz
Hence, the frequency of the oscillator is 0.33 Hz
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Write three or four sentences to describe the process by which the sound of a book dropped on a desk reaches your ear. (3 points)
28. In 1.2 s, 52 wave crests spaced 0.12 m apart pass a location. What is the frequency of these waves?
f=
Hz
Round your answer to the nearest thousandth if necessary.
Frequency = (number of waves) / (time)
(52waves) / (1.2 sec) = 43.333 Hz.
To qualify for the finals in a racing event, a race car must achieve an average speed of 255 km/h on a track with a total length of 2,200 m. If a particular car covers the first half of the track at an average speed of 213 km/h, what minimum average speed must it have in the second half of the event in order to qualify
Please find attached photographs of your answer. Hope it helps. Please do comment
Fe + Br2 --> FeBr3
How many atoms of iron (Fe) are in the reactants?
How many atoms of bromine (Br) are in the reactants?
How many molecules of bromine are in the reactants?
How many atoms of iron (Fe) are in the products?
How many atoms of bromine (Br) are in the products?
How many particles of iron (III) bromide are in the products?
Is this equation balanced?
If the equation is not balanced, then balance it below :
__Fe + __Br2 ——-> __FeBr3
Explanation:
121134No2Fe+3Br2-->2FeBr3Explain how improving the EXERGY may be as good, if not better than discovering new/oil coal mines.
Answer:
It is necessary to search for new sources of energy because the sources we have now are non-renewable and exhaustible. The usage of these sources are increasing day by day and if this continues then one day we wlii be left with none so it is necessary to search for new sources of energy
PLEASE MARK ME BRAINLIESTConvert the following in to SI units without changing its values a. 4000 g. b. 2.4 km
#A
[tex]\boxed{\sf 1kg=1000g}[/tex]
[tex]\\ \sf\longmapsto 4000[/tex]
[tex]\\ \sf\longmapsto \dfrac{4000}{1000}[/tex]
[tex]\\ \sf\longmapsto 4kg[/tex]
#B
[tex]\boxed{\sf 1km=1000m}[/tex]
[tex]\\ \sf\longmapsto 2.4km=2.4(1000)[/tex]
[tex]\\ \sf\longmapsto 2400m[/tex]
hằng số phổ biến chất khí
Answer:
please in english......................................
Explanation:
A tourist drags his luggage of mass 20 kg with a force, F at a constant velocity across the floor . The coefficient of kinetics friction between the rollers of the luggage and the floor is 0.40. The luggage is dragged 0.80 m along the floor. Calculate the work done on the luggage by the force, F.
The work done on the luggage by the force is 62.78 J
The given parameters;
mass of the luggage, m = 20 kg
coefficient of friction, μ = 0.4
distance moved by the object, d = 0.8 m
To find:
the work done on the object by the forceThe work done on the luggage by the force is calculated as;
Work-done = F x d
work done = ma x d
[tex]work -done = m\times \mu \times g \times d\\\\work-done = 20 \times 0.4 \times 9.81 \times 0.8\\\\work-done = 62.78 \ J[/tex]
Thus, the work done on the luggage by the force is 62.78 J
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draw a graph of the voltmeter reading versus ammeter readings.
The VI graph helps us to find Resistance.
It was used by Ohm which is well known as ohms law.
Rowenda is stopped on the side of the road. She then starts pedaling her bicycle for 15 seconds. Her final
velocity is 9 m/s. What is her acceleration while she is pedaling?
Explanation:
acceleration = change in velocity / change in time
a = v2-v1
- - - - - -
t
V1 = 0 ( since she stopped)
V2 = 9 m/s
t =15s
a = 9 - 0
- - - -
15
= 0.6m/s^2
Is lightning ac or dc?
Answer:
ac
Explanation:
A pair of runners, A and B, are running on separate paths towards point 2 in the image. On both paths, point 1 is the same horizontal distance from point 2. The runners start and end at the same time on their respective paths. Which of the following is true about the runners' average speed and velocity? Select ALL that apply.
A. Both runners have the same velocity since they covered the same distance on the same amount of time.
B. Runner A has a greater speed since a greater distance was covered in the same amount of time
C. Runner B has a greater speed since a greater distance was covered in the same amount of time
D. Runner A has a greater velocity since the total displacement was greater than runner B
E. Runner B has greater velocity since the total displacement was greater than runner A
Answer:
C. Runner B has a greater speed since a greater distance was covered in the same amount of time.
Explanation:
Given information:
The time taken by both the runners A and B is same.
The horizontal distance (shortest distance or displacement) between point 1 and 2 is equal in both the paths.
From the given figure, the distance between point 1 and 2 in path B is more than that in path A.
Average velocity is the ratio of change in displacement with time and average speed is the ratio of total distance covered with time.
Now, the displacement between point 1 and 2 in both the paths is equal. and hence, the average velocity will also be same.
Average speed of runner B will be more as the distance covered by B is more then that by A.
Therefore, option C. Runner B has a greater speed since a greater distance was covered in the same amount of time is correct.
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The difference between vectors and scalars allows us to find that the correct answers are:
A. Both runners have the same velocity since they covered the same distance on the same amount of time
C. Runner B has a greater speed since a greater distance was covered in the same amount of time
Kinematics studies the movement of bodies, finding relationships between the position, velocity and acceleration of bodies
In general, the magnitudes of kinematics are vectors, which is why they have modulus and direction, therefore vector algebra must be used to perform the sum.
v = [tex]\frac{\Delta s}{\Delta t}[/tex]
The bold letters indicate vectors, v is the velocity, Δs the displacement (vector) and Δt the time (scalar)
In some cases scalar magnitudes are used, in kinematics they are given a different name: distance and speed.
v = [tex]\frac{\Delta s}{\Delta t}[/tex]
Where v is the speed, Δs the distance (scalar) and Δt the time (scalar)
This problem shows the difference between the two types of quantities
Let's look for the velocity of each runner.
They indicate that both leave point 1 and arrive at point 2, regardless of the intermediate paths, the displacement is the same.
They indicate that they arrive at the same time
v = [tex]\frac{\Delta s}{\Delta t}[/tex]
Consequently the velocity is the same for the two runners.
Let's look for speed
From the graph the distance of corridor B is greater than the distance traveled by corridor A
They indicate that the two arrive at the same time
[tex]v_a = \frac{\Delta x_a}{ \Delta t}[/tex]
[tex]v_b = \frac{\Delta x_b}{ \Delta t}[/tex]
[tex]v_a > v_b[/tex]
Let's analyze the different statements
A. True. Vector velocity is the same for both runners
B. False. The speed of corridor a is less
C. True. The speed of runner A is greater than the speed of runner B
D. False. Speed are equal
E. False The speed is the same.
In conclusion with the difference between vectors and scalars we can find that the correct answers are:
A. Both runners have the same velocity since they covered the same distance on the same amount of time
C. Runner B has a greater speed since a greater distance was covered in the same amount of time
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A highly volatile substance has an initial mass of 1200 g and its mass is reduced by 12% each second. a Write a formula that gives the mass of the substance (m) at time (t) seconds. b Rearrange this formula to make t the subject. C What mass remains after 10 seconds, correct to 2 decimal places? d Calculate how long (to the nearest second) it takes until the mass is 10 grams. e After how many seconds (to the nearest second) is the mass less than 1 gram?
Answer:i couldn't understand the question please give a better question
Explanation:
Hai vật có khối lượng hơn kém nhau 4 lần, được thả rơi tự do cùng
một lúc tại cùng một vị trí. Khi chạm đất thì
Answer:
Explanation:
.
*GIVING BRAINLIST*
Which scenario most likely shows how a scientist can use creativity?
1.) A scientist changes the design of a wine-making machine so it can be used to prints books.
2.) A scientist observes the movement of baseballs after they are thrown.
3.) A scientist conducts several trials when experimenting how fast chocolate melts in different containers.
4.) A scientist carefully measures the height of plants when given different amounts of water.
Answer:
I know I am way too late but I am 99.99% sure its A
Explanation:
Answer: ITS D, 100% SURE TRUST ME!!!!
If for every kg of hydrogen converted to helium 0.0071 kg is converted to energy, what mass of hydrogen (in kg) must be consumed every second to fuel the Sun?
Answer:
Explanation:
630 trillion joules of energy
3.
is the force on a dropped ball.
gravity
acceleration
Answer:
Speeding up While Falling Down
Gravity is a force that pulls objects down toward the ground. When objects fall to the ground, gravity causes them to accelerate. Acceleration is a change in velocity, and velocity, in turn, is a measure of the speed and direction of motion.
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Explanation:
The electric field is generated by charge +Q. Which arrow represents the direction of the electric field at point P that is at distance of “r” from +Q? Magnitude of the E at the point P
Answer:
it is p
Explanation:
because it makes more sense
A drag racer, starting from rest, speeds up for 402 m with an acceleration of +17.0 m/s2. A parachute then opens, slowing the car down with an acceleration of –6.10 m/s2. How fast is the racer moving 3.50 × 102 m after the parachute opens?
The racer is running at a speed of approximately 96.943 meters per second at 350 meters after the parachute is opened.
According to this question, the drag race accelerates and later decelerates uniformly and we can determine the final speed of the vehicle by the following kinematic formula:
[tex]v = \sqrt{v_{o}^{2}+2\cdot a\cdot s}[/tex] (1)
Where:
[tex]v_{o}[/tex] - Initial speed, in meters per second. [tex]v[/tex] - Final speed, in meters per second.[tex]a[/tex] - Acceleration, in meters per square second.[tex]s[/tex] - Traveled distance, in meters.Acceleration phase
If we know that [tex]v_{o} = 0\,\frac{m}{s}[/tex], [tex]a = 17\,\frac{m}{s^{2}}[/tex] and [tex]s = 402\,m[/tex], then the final speed of the drag racer is:
[tex]v = \sqrt{\left(0\,\frac{m}{s} \right)^{2} + 2\cdot \left(17\,\frac{m}{s^{2}} \right)\cdot (402\,m)}[/tex]
[tex]v \approx 116.910\,\frac{m}{s}[/tex]
Deceleration phase
If we know that [tex]v_{o} \approx 116.910\,\frac{m}{s}[/tex], [tex]a = -6.10\,\frac{m}{s^{2}}[/tex] and [tex]s = 350\,m[/tex], then the final speed of the drag racer is:
[tex]v = \sqrt{\left(116.910\,\frac{m}{s} \right)^{2} + 2\cdot \left(-6.10\,\frac{m}{s^{2}} \right)\cdot (350\,m)}[/tex]
[tex]v \approx 96.943\,\frac{m}{s}[/tex]
The racer is running at a speed of approximately 96.943 meters per second at 350 meters after the parachute is opened.
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Which statement about an atom is correct
Which of the following does not represent a question that can be answered by science?a. How much energy is released in a given nuclear chain reaction? b. Can a nuclear chain reaction be controlled? c. Should uncontrolled nuclear reactions be used for military applications?
d. What is the half-life of a waste product of a nuclear reaction?
Answer:
c. Should uncontrolled nuclear reactions be used for military applications?
Explanation:
The question on wether to use technology for military applications, is not a science question but a moral dilemma
The question that can not be answered by science is the question; "Should uncontrolled nuclear reactions be used for military applications?".
Science is empirical in its approach. This implies that the questions that are answered by science are questions that are testable and can be be verified in a laboratory.
Science does not answer questions that deal with the opinions of various individuals. That is completely outside the purview of scientific investigation.
Hence, science does not answer the question; Should uncontrolled nuclear reactions be used for military applications?
This question deals with moral values and the opinions of people about a matter and not empiricism.
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Convert 4 centimeters to meters using dimensional analysis and USE SCIENTIFIC NOTATION. (if you dont your answer is getting one star and reported). Please go step by step as I am having difficulty with this subject. Best answer get Brainliest
Answer:
[tex]thank \: you[/tex]
Question:-
Convert 4cm to m
Solution:-
Lets do
First note down the below formula
[tex]\boxed{\sf 1m=10^{2}cm}[/tex]
Then
[tex]\boxed{\sf 1cm=10^{-2}cm}[/tex]
Now we are given 4cm
So convert
[tex]\\ \sf\longmapsto 4\times 10^{-2}m[/tex]
If we simplify to decimal
[tex]\\ \sf\longmapsto 4cm=0.04m[/tex]
Hence done .
How long does it take long a light from the sun to reach the earth if it travels a distance of 1.5 × 10^11m? (velocity of light = 3 × 10^8 m/s)
Answer:
Therefore, light travelling at 3.0x10^8 meters per second takes 500 seconds (8 minutes, 20 seconds) to reach the Earth, which is 1.5x10^11 meters away from the sun
Explanation:
HELP
What is the goal of a theory?
Hi,
The goal of a theory is to explain natural and physical phenomena.
Hope it helps you...
Pls mark brainliest if it helps you...
(Answered by Benjemin)
We can define theory as:
"A logical-deductive or inductive and organized set of ideas that explain a given phenomenon, where the deductions are based on observations".
With this, we can see that the correct option is "To explain natural and physical phenomena"
Now let's explain this a little bit more.
Here we want to see the goal of a theory.
So, what is the end of a theory?
A theory wants to explain something. Someone sees a phenomenon, and in a need to understand it, uses the information that he/she has to try to explain it. Then he/she proceeds to do experiments to test if the theory is correct.
Concluding, the correct option is:
"To explain natural and physical phenomena"
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