A person riding a bike has a total mass of 95 kg, if the person bike system is moving at a velocity of 5 m/s, how much kinetic energy is there?

Answer: The statement gaining potential energy is always associated with a force field, is true about potential energy.

Explanation:

The energy acquired by an object due to its position is called potential energy.

Basically, a force field exerts a force that gives rise to potential energy of an object. For example, gravity, spring force etc.

This means that gaining potential energy is always associated with a force field.

A change in position does not always means that an object gains potential energy. For example, a spring will have more potential energy when it is compressed or stretched.

Hence, change in position of an object not necessarily means always gain in potential energy.

There are two types of potential energy that is, gravitational potential energy and elastic potential energy.

Thus, we can conclude that the statement gaining potential energy is always associated with a force field, is true about potential energy.

Answer:

Explanation:

The first one and the last one are the correct answer.

Answer:

there it is fella tried o. ma own consciousness

Answer:

Equal

Explanation:

The law of conservation of energy states that the total momentum before and after a collision are equal

Answer:

Equal to the total momentum of the two objects after the collision.

Answer:

I think it would be the second answer...

Explanation:

Hope this helps!

Lucas do a work of 0 joule. Hence, option (B) is correct.

The notion of work in science is significantly different from what it is understood to entail in ordinary life. Every time work is performed, energy is transmitted, as shown by the definition of work in physics.

A force must be applied and there must be movement in the force's direction for a work to be completed scientifically. Having said that, we may state that The product of the component of the force acting in the displacement's direction and its magnitude is work.

Mathematically work done can be expressed as:

work done = force × displacement × cosθ

Where θ is the angle between the force and the displacement .

Here, the  car remains stuck, that means, no displacement happens. So. Lucas do a work of 0 joule.

Learn more about work here:

https://brainly.com/question/19382352

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Answer:

The force of repulsion is 17.802 N

Explanation:

Given;

magnitude of the first charge, q₁ = 8.6 x 10⁻⁶ C

magnitude of the second charge, q₂ = 2.3 x 10⁻⁴ C

distance between the two charges, r = 1 m

The force of repulsion is calculated using Coulomb's law;

[tex]F = \frac{Kq_1q_2}{r^2} \\\\F = \frac{9\times 10^9 \times 8.6\times 10^{-6} \times 2.3\times 10^{-4}}{1^2} \\\\F = 17.802 \ N[/tex]

Therefore, the force of repulsion is 17.802 N

Answer:

hitting it with a hammer to determine if it breaks or bends

Answer:

exposing it to a flame to see if it catches on fire

Explanation:

A chemical property is when the matter changes into a different substance. This is true when you expose it to a flame because if a substance is burned, it will change into a new substance. All the other options are examples of physical changes.

-I also took the quiz and got 100%

Hope this helps!

Answer:

They are because 1. New years culture benefits 2. Gives the right amount of heat as well as a day/ night cycle and the 4 seasons because of the earths tilt

Answer:

Explanation:

Our lives on earth are directly connected to the sun and our solar system because they give the right amount of heat and as well as the day and night cycle. Furthermore, due to the earth’s tilt, we get our four seasons which are very important to us as humans, getting different seasons and weather conditions.  

The solar system also affects the tides and  

A Long time ago, the Moon was closer to the Earth and spinning rapidly. The Moon’s tidal bulges didn’t align with the Earth, and the Earth’s gravity tugged on them, slowing the Moon’s spin and moving it farther away. As it moved farther away, the time it took to orbit once around the Earth increased: Its orbital period got longer. Eventually, the lengthening rotation of the Moon matched how long it took to go around the Earth. When that happened, the axis of the bulges pointed right at the Earth. That’s why the Moon only shows one face to us! It spins once per month and goes around us once per month.

Gravity is a force, and it weakens with distance. An important thing to note is that we measure gravity from the center of mass of an object, not its surface. One way to think of the center of mass of an object is the average position in an object of all its mass. For an evenly distributed sphere, that’s its center.

Since gravity weakens with distance, the force of Earth’s gravity on your head is less than it is on your feet, it’s way too small for you to ever notice. This change in the force of gravity over distance is what astronomers call the tidal force. The overall effect of the tidal force is to stretch an object.

The Moon has gravity. Just as the bulge is pulling the Moon ahead, the Moon is pulling the bulge back, slowing it down. Because of friction with the rest of the Earth, this slowing of the bulge is actually slowing the rotation of the Earth itself, making the day longer. The effect is small, but it’s measurable.

The constellations and astronomy give us our zodiac signs, and from previous knowledge, I know that zodiac signs impact our personalities greatly. If constellations were not found then zodiac signs wouldn’t have been created.  

Answer:

big half like whale is so big

Answer: SI unit of pressure

Explanation: The pascal (pronounced pass-KAL and abbreviated Pa) is the unit of pressure or stress in the International System of Units (SI). Reduced to base units in SI, one pascal is one kilogram per meter per second squared; that is, 1 Pa = 1 kg · m-1 · s-2.

Hope this helps! Have a fantastic rest of ur day, luv!

Answer:

This is newton's 3rd law

Explanation:

Answer:

1.2 kg

Explanation:

F = 18N

a = 15 m/s^2

F = ma

18 = 15m

m = 1.2 kg

Answer:

230k

Explanation:

energy capacity maximum is 573 total available. 343k of that energy is present at release and subsequent loss leaving max used energy of 230k.

(a) 10N

The sketch of the two cases has been attached to this response.

Case 1: The box is pushed by a horizontal force F making it to move with constant velocity.

In this case, a frictional force [tex]F_{r}[/tex] is opposing the movement of the box. As shown in the diagram, it can be deduced from Newton's law of motion that;

∑F = ma    -------------------(i)

Where;

∑F = effective force acting on the object (box)

m = mass of the object

a = acceleration of the object

∑F = F -  [tex]F_{r}[/tex]

m = 50kg

a = 0   [At constant velocity, acceleration is zero]

Substitute these values into equation (i) as follows;

F -  [tex]F_{r}[/tex] = m x a

F -  [tex]F_{r}[/tex] = 50 x 0

F -  [tex]F_{r}[/tex] = 0

F =  [tex]F_{r}[/tex]            -------------------(ii)

Case 2: The box is pushed by a horizontal force 1.5F making it to move with a constant velocity of 0.1m/s²

In this case, the same frictional force [tex]F_{r}[/tex] is opposing the movement of the box.

∑F = 1.5F -  [tex]F_{r}[/tex]

m = 50kg

a =  0.1m/s²

Substitute these values into equation (i) as follows;

1.5F -  [tex]F_{r}[/tex] = m x a

1.5F -  [tex]F_{r}[/tex] = 50 x 0.1

1.5F -  [tex]F_{r}[/tex] = 5            ---------------------(iii)

Substitute [tex]F_{r}[/tex] = F from equation (ii) into equation (iii) as follows;

1.5F - F = 5            

0.5F = 5            

F = 5 / 0.5

F = 10N

Therefore, the value of F is 10N

Answer:

7.2 N

Explanation:

Applying,

F = BIL................. Equation 1

Where F = Force due to current through the element, B = magnetic field, L = Length of the element.

From the question,

Given: B = 12 Tesla, L = 6 cm = 0.06 m, I = 10 A

Substitute these values into equation 1

F = 12(0.06)(10)

F = 7.2 N

Hence the force through the element is 7.2 N

Answer:

It is 40.08 g

Explanation:

[tex]6.02 \times 10 {}^{23} \: atoms = 1 \: mole = 40.08 \: g[/tex]

Answer: The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close because the kinetic energy of the particles of matter increases with the increase in temperature. In cold foods, kinetic energy is less while in hot foods, kinetic energy is more

hope this helps

Smell spreads due to diffusion. In hot food the molecules have a lot of kinetic energy , and they therefore spread fast , whereas in cold food the kinetic energy of the molecules are less and they don't spread far.

Answer: the pressure increases with the amount of water pushing in on all sides of the diver, for example, when you jump into a pool and you head is above water it a little harder to breathe, it is the same way for divers when they are diving at increasingly deep depths, the deeper you are the more water is pressing in on you.

Explanation:

Answer:

a refraction

b reflection

creflection

d refraction

brainliest plzz

Answer:

the answer is 80 degrees

Explanation:

Answer:

the mushrooms

mushrooms are decomposers because they break down organic material around them.

Answer:

So, sensitivity of the galvanometer can be increased either by increasing the number of turns (N), using strong magnets or increasing the area of the coil (A). So, the correct answer is that the sensitivity of a moving coil galvanometer can be increased by increasing the number of turns of the coil.

Answer:

electron dot diagram is the answer to your question.

Answer:

[tex]N_P = 40\ N_S[/tex]

To reduce the output voltage to 6v in transformers if the input voltage is 240v​, we need to have 40 times as many turns in the primary coil as there are in the secondary coil.

Explanation:

The change in voltage of a transformer depends upon the turns ratio of the transformer between secondary and primary coil. Following formula can be used to determine the turns ratio in this case:

[tex]\frac{N_P}{N_S} = \frac{V_P}{V_S} \\\\[/tex]

where,

[tex]N_P[/tex] = No. of turns in the primary coil

[tex]N_S[/tex] = No. of turns in the secondary coil

[tex]V_P[/tex] = voltage in the primary coil = 240 V

[tex]V_S[/tex] = voltage in the secondary coil = 6 V

Therefore,

[tex]\frac{N_P}{N_S} = \frac{240\ V}{6\ V} \\\\N_P = 40\ N_S[/tex]

To reduce the output voltage to 6v in transformers if the input voltage is 240v​, we need to have 40 times as many turns in the primary coil as there are in the secondary coil.

1.875

Explanation:

speed = distance moved ÷ time taken

Answer:

I'm pretty sure the velocity is 2.88 m/s

Explanation:

hope this is right good luck

Answer:

0.348

Explanation:

Acellus

Answer:

5 m/s

Explanation:

As the ball falls to the ground, it is acted upon by a force which is due to the gravitational force. Hence, the ball falls with an acceleration called the acceleration due to gravity.

Let us assume that the acceleration due to gravity (g) = 10 m/s², Since initially, the body was at rest, hence the initial velocity (u) = 0 m/s. The height to the ground (h) = 1.3 m. Hence using the equation of motion, the final velocity (v) is:

v² = u² + 2gh

Substituting:

v² = 0² + 2(10)(1.3)

v² = 26

v = √26 = 5

v = 5 m/s

The answer is A, Hope this helps and sorry for being late :)

Answer:

  W = 3.75 kJ

Explanation:

Power is defined by the relational

          P = W / t

          W = P t

the yield is 25% = 0.25

           W = 0.25 Wo

           W = 0.25 250 60

           W = 3750 J

            W = 3.75 kJ