Please help me and I’ll mark as brainliest i promise

Explanation:

Please Tell me About this question if you know que is transformer is used in rectifier to step up or step down voltage?

The impulse is the product of mass and velocity. Hence, the impulse delivered by the second shopping cart is 3mv/2

Given the Parameters :

Impulse delivered by the second cart on the first :

Impulse = Mass × velocity

Impulse = Mass of cart 2 × final velocity of cart 1

Impulse = 3m × v/2 = 3mv/2 Ns (towards the left)

Therefore ; the impulse delivered by the second shopping cart is 3mv/2 to the left.

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Answer:

Magnetism

Explanation:

Answer:

Explanation:

Flares occur in active regions around sunspots, where intense magnetic fields penetrate the photosphere to link the corona to the solar interior. ... X-rays and UV radiation emitted by solar flares can affect Earth's ionosphere and disrupt long-range radio communications.

B is the correct answer

La actividad física posee muchos beneficios para la salud. Algunos de estos beneficios son la reducción en el riesgo de padecer enfermedades, control del peso, fortalecimiento de huesos y músculos, etc.

La actividad física regular previene la aparición de enfermedades cardiovasculares al evitar la acumulación de colesterol en las arterias que transportan sangre a diferentes áreas del organismo.

La actividad física consume calorías, especialmente aquellas provenientes de los lípidos (grasas), con lo cual permite controlar el peso y reducir el riesgo de obesidad.

La actividad física también ayuda al fortalecimiento de los tejido oseo, con lo cual previniendo enfermedades relacionadas tales como la osteoporosis.

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Answer:

18.71 joules

Explanation:

The formula to solve for potential energy is PE = mgh

where m = mass, g = force of gravity, and h = height.

m = 1.11 kg

g = 9.8 m/s^2

h = 1.72 meters

PE = (1.11)(9.8)(1.72)

PE = 18.71016

Therefore, the potential energy of the ball is 18.71 joules.

Answer:

The formula to solve for potential energy is PE = mgh

where m = mass, g = force of gravity, and h = height.

m = 1.11 kg

g = 9.8 m/s^2

h = 1.72 meters

PE = (1.11)(9.8)(1.72)

PE = 18.71016

Therefore, the potential energy of the ball is 18.71 joules.

Answer:

hi uv f hmm k in vyvj

Explanation:

hujjkiv ghujihtnkbggvhbbbnnjnj

Answer:

electrons have a negative charge, while protons have a positive charge

Explanation:

In science "opposites attract"

c] Electrons

Electron gets transferred

Answer:

1 / 3 or 0.33

that is if you meant that the object accelerates at 3 m / s² not 3 m / s

for the unit of acceleration is m / s²

Explanation:

m = ?

a = 3

f = 1N

where;

m = mass ( kg )

a = acceleration ( m / s² )

f = force ( N )

from all the parameters we are given, we can use Newton's second law of motion to solve it

that is;

a = f / m

to make m the subject of the formula, we have to cross multiply to give us;

m( a ) = f

divide through by a to give us;

m ( a ) / a = f / a

therefore,

m = f / a

so, we substitute our values to give us;

m = 1 / 3

therefore. m = 1 / 3 or 0. 33

hope this helps

thank you!!!!

Answer:

Explanation:  HIII

[tex]1.39[/tex] × [tex]10^{6} N[/tex] acting  [tex]30^{o}[/tex] to the left of the vertical.

The weight of the airliner is [tex]1.20[/tex] × [tex]10^{6} N[/tex] and there is an aerodynamic lift force of [tex]1.39[/tex] × [tex]10^{6} N[/tex] acting  [tex]30^{o}[/tex] to the left of the vertical.

Therefore, the airliner follows this circular path while maintaining a steady speed.

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The motorized toy boat experiences a net force of 0 N between 4 s and 8 s.

The motorized toy boat moves at 8 m/s (u) at 4 s and at 8 m/s (v) at 8 s. We can calculate the acceleration (a) in that period using the following kinematic expression.

[tex]a = \frac{v-u}{\Delta t} = \frac{8m/s-8m/s}{8s-4s} = 0 m/s^{2}[/tex]

The object with a mass (m) of 2.0 kg experiences an acceleration of 0 m/s². We can calculate the net force (F) in that period using Newton's second law of motion.

[tex]F = m \times a = 2.0 kg \times 0 m/s^{2} = 0 N[/tex]

The motorized toy boat experiences a net force of 0 N between 4 s and 8 s.

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Answer:

Yes

Explanation:

They will reach the ground right after each other.

The earth connection is because the earth connection(third cable) helps to prevent the casing from turning into a live wire.

It is normal to find that the cable that is used in the pressing iron has three wires that connect to live, neutral and earth. The earth connection is very important in the pressing iron.

The reason why we ought to have the earth connection is because the earth connection helps to prevent the casing from turning into a live wire.

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Answer:   see below.

Explanation:

Your question is lacking the necessary parameters, so I will assume the values to enable me to solve it:

Mass of football = 20 grams

Volume of football = 100[tex]cm^{3}[/tex]

To find the density of the football;

Density is simply mass per unit volume of an object such as a football.

Mathematically, the density of an object is given by the formula;

Density=[tex]\frac{Mass}{Volume}[/tex]

Substituting the assumed values into the above formula;

Density=[tex]\frac{20}{100}[/tex]

Density= 0.2g/[tex]cm^{3}[/tex]

Therefore, the density of the football is     0.2g/[tex]cm^{3}[/tex] .

For you: You can substitute the appropriate parameters into the formula to get the exact density of the ball.

[tex]\boxed{\sf Efficiency=\dfrac{E}{∆E}\times 100}[/tex]

[tex]\\ \sf\longmapsto Efficiency=\dfrac{1200}{2000}\times 100[/tex]

[tex]\\ \sf\longmapsto Efficiency=\dfrac{3}{5}\times 100[/tex]

[tex]\\ \sf\longmapsto Efficiency=60\%[/tex]

Answer:

There is absolutely No relationship between the weight of an object (which is constant) and the frictional force. If a block is sliding on a surface, that surface will be exerting a force on the block. That force can be resolved into a component parallel to the surface (which we call the frictional component), and a component perpendicular to the surface (called the normal component). For many situations, we find experimentally that the frictional component is approximately proportional to the normal component. The frictional component divided by the normal component is defined to be a quantity called the coefficient of kinetic or sliding friction. The coefficient of kinetic friction obviously depends on the nature of the surfaces involved. The normal component on an object can be decreased if you pull in the direction of the normal component (the weight does not change). However pulling this way on the object not only decreases the normal component, but it also decreases the frictional component since they are proportional. This is why it is easier to slide something if you pull up on it while you push it. If you push down, the normal and frictional components increase so it is harder to slide the object. The weight of an object is the downward force exerted by Earth’s gravity on that object, and it does not change no matter how you push or pull on the object.

The density of the solution from the given compositions of water and ethanol is 799.55 kg/m³.

The given parameters;

The density of the solution from the given compositions of water and ethanol is obtained by finding the respective amount of water and ethanol composition is the solution.

The density of the solution is calculated as follows;

[tex]\rho = \frac{5(1000 \ kg/m^3) + 95(789 \ kg/m^3)}{100} \\\\\rho = 799.55 \ kg/m^3[/tex]

Thus, the density of the solution from the given compositions of water and ethanol is 799.55 kg/m³.

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The answer is 799.55 kg/m3.

Hi there!

We know that:

Potential energy = mgh, where:

m = mass

g = acceleration due to gravity

h = height

We know that ΔPE = mgΔh = 1.47 kJ, so:

1.47kJ = mgΔh

Remember to convert kJ to J for simplicity: (1 kJ = 1000J)

1470J = mgΔh

Rearrange to solve for Δh:

1470/mg = Δh

1470/(60 · 9.8) = 2.5m

from,

v² = u² + 2as

where s = distance

a = (v² - u²) /2s

a = (85² - 6²) /2*550

a = 6.53m/s²

Answer:

A. an echo works similarly with an ultrasound scanner cos they both refract sound

Explanation:

hope it helps

Answer:

A. Echo

Explanation:

I took the quiz and got it right

Answer:

напряженность поля в некоторой точке 0,8 кН/кл определите величину силы,с которой поле будет в этой точке действовать на заряд 2,5мкКл 00

Answer:

Explanation:

See attachment.

a  NO - it depends on distance between the masses, also.

The gravitational force between two objects depends only on their masses.

b  YES - see attachment

The gravitational force between two objects increases if the mass of one object increases.

c. No - it decrease

The gravitational force between two objects increases if the distance between the objects decreases.

d. It appears the answer is incomplete (stops at . . ., no . . ).  Otherwise I say YES.

Any two objects that have mass also have a force of gravity acting between them, no

Answer:

6.06 seconds i believe (rounded)

i just divided.