SIMPLY !!!! I don’t get this either so please help !

Answer:

C

Explanation:

a parallel circuit because there is more than one path

Answer:

C) a parallel circuit because there is more than one path

Explanation:

EDGE 2022

Answer:

6, 3, 2, 5, 4, 1

Explanation:

Let's describe them from smallest to largest. In fact the size order is not exact as there are exceptions.

An asteroid is a rocky body which lies in the asteroid belt between Mars and Jupiter. They are typically quite small object. The largest asteroid Ceres has been reclassified as a dwarf planet.

A moon is typically a rocky body which is in orbit around a planet. Some moons such as our Moon are quite large and are typically bigger than asteroid. Some moons can actually be smaller than some asteroids.

A planet is a nearly spherical body which is in orbit around the Sun. Planets are larger than moons.

A star is what planets orbit around. It is the source of light and heat. Our Sun is a star which is many times bigger than all of the planets.

A solar system is a star and all of its planets, asteroids, comets and other bodies. It is significantly bigger than a star.

A galaxy, such as our Milky Way Galaxy, is a collection of solar systems orbiting around a central core. Most galaxies have a supermassive black hole at their centres.

Galaxies also form clusters which are large scale structures.

The universe is everything. It contains billions of galaxies.

Answer:

a) in uniform motion

Explanation:

When velocity-time graph is parallel to x-axis, it shows that the object is moving with constant velocity. or we can say that that the object is moving with uniform motion. There is no change in velocity. It covere equal distance in equal intervals of time.

Hence, the correct option is (a) "in uniform motion".

Answer:

8.575 m

Explanation:

speed = distance/time

distance -- 2d

343 = 2d/0.05

2d = 17.15

d = 17.15/2

d = 8.575

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Answer:1. High Intensity Interval Training

HIIT stands for High Intensity Interval Training. HIIT is essentially a type of exercise, be it cardio or resistance training. HIIT. alternates between periods of high intensity, and low intensity (or recovery

2. flexibility and muscular strength

3. true

4. d

5. c

Explanation:

Answer:

tenis

Tenis applies to each of Newton's 3 Laws of Motion because with the first law if a tenis ball is at rest it will stay at rest unless acted on by an unbalanced force which would be playing tenis in which it would stay in motion. The second law applies since the acceleration at which it is hit times the mass equals the force it has. The third law applies since when hitting a tenis ball back and forth with racquets the reaction may be equal or opposite

[tex]\tt\red{See \; Your \: Answer!}[/tex]

Your answer was 0.67m...

The velocity of the rock just before it hits the ground is approximately 23.87m/s.

From the third equation of motion;

v² = u² + 2gs

Where u is initial velocity, v is final velocity, g is acceleration due to gravity ( g = 9.8m/s² ) and s is distance covered.

Given the data in the question;

To determine the final velocity, plug the given values into the equation of motion above.

v² = u² + 2gs

v² = ( 3.61m/s )² + ( 2 × 9.8m/s² × 28.4m )

v² = 13.0321m²/s² + 556.64m²/s²

v² = 569.6721m²/s²

v = √( 569.6721m²/s²)

v = 23.87m/s

Therefore, the final velocity of the object is 23.87m/s.

Learn more about Equations of Motion here: brainly.com/question/18486505

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Answer:

Fossil fuels store energy from the sun as

Explanation:

Explanation:

The natural environment or natural world encompasses all living and non-living things occurring naturally, meaning in this case not artificial. The term is most often applied to the Earth or some parts of Earth

Answer: 9.91 * 10^-5

Explanation: acellus

Answer: [tex]40\ N/C[/tex]

Explanation:

Given

Magnitude of charge is [tex]q=0.5\ C[/tex]

Force experienced is [tex]F=20\ N[/tex]

Electric field intensity is the electrostatic force per unit charge

[tex]\therefore E=\dfrac{F}{q}\\\\\Rightarrow E=\dfrac{20}{0.50}\\\\\Rightarrow E=40\ N/C[/tex]

Thus, the electric field intensity is [tex]40\ N/C[/tex]

Answer:

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Explanation:

1.eneegy can change from ome form to another

Answer: Refraction

Explanation: When a light wave hits a glass of water the wave bends to make it look side ways

Answer:

Some of the work done on the cart became the cart’s potential energy, and some of the work was converted into heat by friction.

Explanation:

Here, some fraction of the work done by the student on the cart is converted to the potential energy of the cart it gained at the height.

Work done is the measure of the effectiveness of the force on making some displacement. It is the dot product of force and displacement. Work done like force is a vector quantity and have magnitude and direction.

When a force applied on a body results in a displacement, then it is said to be work is done on the body. The work done is numerically equal to the energy needed to displace the object.

Here, the force applied on the cart of 100 Kg results in a work done on the cart by pulling it to height. Where the energy equivalent to the work done is stored in the form its potential energy.  The potential energy

p = mgh

Some fraction of work done is stored as this energy while the remaining probably lost into the surroundings.

Find more on potential energy;

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Answer:

When a ray of light, passes from a denser to a rarer medium with the angle of incidence greater than the critical angle, the ray is reflected back into the same medium. This phenomenon is call total internal reflection.

Answer:

1. Cellular respiration is the process in which cells break down glucose, release the stored energy, and use it to make ATP. The process begins in the cytoplasm and is completed in a mitochondrion. Cellular respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport.

2. How much ATP is produced in all three stages combined? Glycolysis produces 2 ATP molecules, and the Krebs cycle produces 2 more. Electron transport from the molecules of NADH and FADH2 made from glycolysis, the transformation of pyruvate, and the Krebs cycle creates as many as 32 more ATP molecules.

3. Photosynthesis converts carbon dioxide and water into oxygen and glucose. ... Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

4. Aerobic respiration takes place in presence of oxygen; whereas anaerobic respiration takes place in absence of oxygen. Carbon dioxide and water are the end products of aerobic respiration, while alcohol is the end product of anaerobic respiration. Aerobic respiration releases more energy than anaerobic respiration.

Answer:

La ecuación de onda lineal para una función f(x, t) se escribe como:

[tex]\frac{d^2f}{dt^2} = c^2*\frac{d^2f}{dx^2}[/tex]

Donde c es una constante que depende de la velocidad de propagación de la onda.

En este caso, tenemos:

[tex]f(x) = A*e^{-i*(k*x - w*t + \phi)}[/tex]

Recordar que la derivada de la exponente es tal que:

[tex]k(x,y) = A*e^{c*x + n*y}\\dk/dx = c*A*e^{c*x + n*y}[/tex]

Entonces las derivadas de f van a ser:

[tex]\frac{df}{dt} = (i*w)*f(x)[/tex]

[tex]\frac{d^2f}{dt^2} = (i*w)^2*f(x) = -(w)^2*f(x)[/tex]

[tex]\frac{df}{dx} = (-i*k)*f(x)[/tex]

[tex]\frac{d^2f}{dx^2} = (-i*k)^2*f(x) = -k^2*f(x)[/tex]

Entonces podemos reescribir la ecuación de onda como:

[tex]\frac{d^2f}{dt^2} = c^2*\frac{d^2f}{dx^2}[/tex]

[tex]-(w)^2*f(x) = c^2*(-k^2*f(x))[/tex]

Ahora podemos simplemente definir c^2 = (w/k)^2 y vemos que la ecuación de onda se cumple.

Answer:

the velocity is 0.45 m/s and it is moving in the opposite direction

or

-0.45 m/s

Explanation:

The law of conservation of momentum says that  initial momentum = final momentum

( mass x velocity of the dog ) = - (mass x velocity of the canoe)

(15 x 1.2) =- (40 x velocity of the canoe)

Velocity of the canoe = -(15 x 1.2) / 40 = -0.45 m/s

Answer:

Her final velocity at she moves over the the bottom of the ramp is approximately 1.20204 m/s

Explanation:

The data of the energy used by the person in the wheel chair are;

The work done by the person, W = 70.8 J

The initial position of the wheel chair = At the bottom of the ramp

The time the person takes to do the work, t = 1.00 s

The number of turns she turned the wheel chair = 1/4 turns

The radius of the wheel of the wheel chair, r = 40 cm

The mass of her and the wheel chair, m = 98.0 kg

By the conservation of energy principle, we have;

The total mechanical energy of the motion, M.E. = The amount of work done by her in moving up the ramp = 70.8 J

M.E. = P.E. + K.E. = Constant

Where;

P.E. = Potential energy

K.E. = Kinetic energy

At the height she reached the ramp, M.E. = P.E. = 70.8 J

At the bottom of the ramp, P.E. = 0 J, therefore;

K.E. = 70.8 J

We have;

K.E. = (1/2)·m·v²

Where;

m = The mass of her and the wheelchair = 98.0 Kg

v = Her final velocity at the bottom of the ramp

By substitution, we have;

70.8 J =  (1/2) × 98.0 Kg × v²

v² = 70.8/((1/2) × 98.0) = 354/245

v = √(1,770)/35 ≈ 1.20204

Her final velocity as she passed back over the bottom of the ramp, v ≈ 1.20204 m/s.

Answer:

yes

Explanation:

Reactions of acids with metals

Acids react with most metals and, when they do, a salt is produced. But unlike the reaction between acids and bases, we do not get water. Instead we get hydrogen gas.

This is the general word equation for the reaction:

metal + acid → salt + hydrogen

For example, magnesium reacts with hydrochloric acid to produce magnesium chloride:

magnesium + hydrochloric acid → magnesium chloride + hydrogen

Mg + 2HCl → MgCl2 + H2

It doesn't matter which metal or which acid is used, if there is a reaction we always get hydrogen gas as well as the salt. However, how quickly the reaction goes depends on the metal used and how high up in the reactivity series it is.

Answer:

The net force is 785 N

Explanation:

The net force = Force in one direction - force in the opposite direction

Here the Downward force due to gravity = 1000N

and the Upward force of air = 215 N

The net force = Downward force due to gravity -Upward force of air

Substituting the given values, we get -

The net force = 1000 -215  = 785 N

Hence, the net force is 785 N

Answer:

I am in 8th grade, and I am learning this, and it is kinda hard, but I appreciate all these people helping people answer thee hard science problems

Answer: 20

Explanation: Mass number is the number of neutrons plus the number of protons. 8 + 12 gives 20.

Mass number

Mass number is 20

Answer:

the answer is letter A im not sure