Isabella filled a glass with warm water. She measured the temperature, and it was 30°c. She left the glass on a table in a room that was 20°c. A few hours later, she measured the water temperature again, and it was 24°c. Which best explains why the water temperature changed?.

The size of the eddy emf because when field is I = 0.5 A when a flat coil of wire with 200 turns and an area of 15 cm each is placed perpendicular to a consistent magnetic field and increases in strength at a rate of

The magnetic field is the area in which a magnet experience the effects of magnetism. The magnetic field is an effective tool for describing how the magnetic force is distributed within and around a magnet object in nature.

E=−NAd BdtE=−(50×10−4m2)×20××4.0T2.0sE=−0.2 VNow; Magnitude of the induced current

I=Induced emf ResistanceI=ERI=0.2V0.40ΩI=0.5A

The same poles were drawn from one another while the opposite poles were drawn toward one another. When brushed against a magnet, the north-seeking poles of the iron atoms align in the same direction. The force created by the aligned atoms results in the creation of a magnetic field.

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c                                                            

Explanation: c because you said it lol

Answer:

c

Explanation:

While the 9 F capacitor stores 450 C of charge, the 10 F capacitor does so for 500 C.

The ratio of the maximum charge Q that may be stored in a capacitor to the applied voltage V across its plates is known as the capacitance C of a capacitor. In other terms, capacitance is the capacity of the device to store the most charge per volt: C = Q V . C = Q V .

(A) The formula for the system's equivalent capacitance between points a and b is

1/Ceq = 1/C1 + 1/C2

where C1 = 10 µF and C2 = 9 µF

1/Ceq = 1/10 µF + 1/9 µF

1/Ceq = 0.19 µF

Ceq = 5.26 µF

(b) The charge that the capacitors' combination stores is given by:

Q = Ceq × V

where V = 50.0 V

Q = 5.26 µF × 50.0 V

Q = 263 µC

(c) We can apply the following formula to determine the charge held in each capacitor:

Q = C × V

For the 10 µF capacitor:

Q1 = C1 × V

Q1 = 10 µF × 50.0 V

Q1 = 500 µC

For the 9 µF capacitor:

Q2 = C2 × V

Q2 = 9 µF × 50.0 V

Q2 = 450 µC

As a result, the 10 F capacitor can hold 500 C of charge while the 9 F capacitor can only store 450 C.

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The formula for calculating the force is to multiply the mass of the body by the acceleration of the body.

When we move a body, we apply a force on it and the force that we apply on the body can be calculated by using the standard relation derived from the Newton's second law of motion.

F = dp/dt

P = Mass x Velocity

If the mass of the body is constant.

F = Mass x d(velocity)/dt

F = Mass x Acceleration

So, the formula for calculating the force applied on the body is the product of the mass and acceleration acting on the body.

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The factors that  can cause an induced current in a wire loop are number of turns of the wire, area of the wire and magnetic field strength.

According to Faraday's law of electromagnetic induction, the rate of change of flux in a magnetic field is proportional to the flux through the magnetic field.

emf = dФ/dt

where;

emf = N(BA)/dt

where;

Thus, the factors that  can cause an induced current in a wire loop are number of turns of the wire, area of the wire and magnetic field strength.

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Answer:

i think it is 0.06 but im not sure sorry if im wrong

Explanation:

Answer:

(A). The force acting on the rocket is mg.

(B). The initial upward acceleration of the rocket is 6.2 m/s²

Explanation:

Given that,

Mass of rocket = 5 kg

Force = 80 N

Time = 4 sec

(A). We need to draw the figure

The force acting on the rocket at each of the intervals is shown in figure.

The force acting on the rocket is mg.

(B). We need to calculate the initial upward acceleration of the rocket

Using balance equation

\(ma=F-mg\)

\(a=\dfrac{F-mg}{m}\)

Put the value in the equation

\(a=\dfrac{80-5\times9.8}{5}\)

\(a=6.2\ m/s^2\)

Hence, (A). The force acting on the rocket is mg.

(B). The initial upward acceleration of the rocket is 6.2 m/s²

Answer:

The distance is 45m. (s)

Acceleration is 9.8 m/s^2 (acceleration due to gravity). (a)

We have to find the time (t)

By the 3rd equation of motion,

s = ut + 1/2 at^2 (here u is the initial velocity of the ball)

Since the initial velocity was 0 m/s, the formula becomes s = 1/2 at^2.

(substituting the values in the formula)

45 = 1/2 x 9.8 x t^2

45 = 9.8/2 x t^2

45 = 4.9 x t^2 (9.8/2 = 4.9)

(divide 4.9 on both sides)

45/4.9 = 4.9 x t^2 / 4.9

9.1836 = t^2

3.030 = t

So it takes approximately 3 seconds for the ball to reach the surface of the earth (neglecting air resistance). You can try the same with 50 m .

The velocity of the ball the moment it hits the ground is equal to 31.3 m/s.

Equation of motion has established a relation between the velocity of the body and acceleration of the body when the body is moving with uniform acceleration along a straight line. The distance traveled in a specific time has expressed a set of equations termed equations of motion.

The first equation of motion can be expressed as follows:

v = u + at

The second equation of motion can be expressed as follows:

S= ut + (1/2)at²

Where u is the initial velocity of a body, v is the final velocity, S is the distance, a is the acceleration and t is the time.

Given, the distance traveled by the ball, S = 50 m

and, the initial velocity of the ball, u = 0 as ball is at rest initially.

From the second equation of motion, find the value of 't':

50 = (0) t + (1/2)× (9.8) ×(t²)

t = 3.19 sec

Now from the first equation of motion, find the value of the final velocity of the ball:

v = (0) + (9.8) (3.19)

v = 31.3 m/s

Therefore, the ball hits the ground with a velocity of 31/3 m/s.

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Water gains potential energy just before it spills over the top of a dam or flows down a hill. The potential energy is converted into kinetic energy as water flows downhill. The water can be used to turn the blades of a turbine to generate electricity, which is distributed to the power plant's customers

Potential energy is a form of energy that is stored but is dependent on the relative positions of different system components. Stretching or compressing a spring increases its potential energy. A steel ball has more potential energy when it is raised above the surface of the earth than when it is brought to Earth.

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Potential energy is the power that a thing possesses as a result of where it is in relation to other objects.

The earth can pull you down through the force of gravity while doing work in the process, being at the top of a stairwell gives you more potential energy than standing at the bottom.

Two magnets have more potential energy when they are held apart than when they are near to one another. They will migrate near each other and begin working if you let them go.

The force acting on the two objects affects the potential energy formula. P.E. = mgh, where m is the mass in kilograms and g is the acceleration due to gravity, is the formula for gravitational force.

Therefore, Potential energy is the power that a thing possesses as a result of where it is in relation to other objects.

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It would take approximately 2.4688 × 10^17 seconds or 7.82 million years for gas to travel from the core of the galaxy to the end of the jet, assuming a constant speed of 5000 km/s.

To calculate the time it would take for gas to travel from the core of the galaxy to the end of the jet, we need to use the formula: time = distance / speed.

Given that the jet in NGC 5128 is traveling at 5000 km/s and is 40 kpc (kiloparsecs) long, we first need to convert the distance from kpc to km. 1 kpc = 3.086 × 10^16 meters, which means 1 kpc = 3.086 × 10^19 km.

Therefore, the length of the jet in kilometers is 40 x 3.086 × 10^19 km = 1.2344 × 10^21 km.

Now we can calculate the time it would take for gas to travel from the core of the galaxy to the end of the jet as follows:

time = distance / speed
time = 1.2344 × 10^21 km / 5000 km/s
time = 2.4688 × 10^17 seconds

So, it would take approximately 2.4688 × 10^17 seconds or 7.82 million years for gas to travel from the core of the galaxy to the end of the jet, assuming a constant speed of 5000 km/s.

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R=10+15+30

55 is the answer to the question

see this picture please mark brainlist

\(\large{\underline{\underline{\pmb{\frak {\color {red}{Question:}}}}}}\)

\( \sf \red{what \: is \: potential \: energy}\)

\(\large{\underline{\underline{\pmb{\frak {\color {blue}{Answer:}}}}}}\)

Potential energy: A type of energy which is possessed by an object due its position.

Example: A raised weight or when we raise any weight is a potential energy.

\(\large{\underline{\underline{\pmb{\frak {\color {red}{Question:}}}}}}\)

\( \sf \red{on \: which \: factor \: potential \: energy \: depends}\)

\(\large{\underline{\underline{\pmb{\frak {\color {blue}{Answer:}}}}}}\)

Potential energy depends upon three factors. They are:

\( \boxed{ \huge \frak \red{brainlysamurai}}\)

Answer:

B. Red

Step by step explanation:

Answer:

Explanation:

Green Blue and Violet are all above Orange.

Only red is below it.

Here are the colors and their frequencies.

Color               Frequency * 10^14

Red                  4.62

Orange            5.00

Green               5.45

Blue                  6.66

Violet                7.50

Answer:

\(\Huge \boxed{\mathrm{13.5 \ Joules}}\)

Explanation:

\(\sf Kinetic \ energy \ (J)=\frac{1}{2} \cdot mass \ (kg) \cdot (velocity \ (m/s)) ^2\)

\(\mathrm{KE=\frac{1}{2} mv^2}\)

The mass of the ball is 3 kg.

The velocity of the ball rolling is 3 m/s.

\(\mathrm{KE=\frac{1}{2} \cdot 3 \cdot 3^2}\)

Evaluating and solving for kinetic energy.

\(\mathrm{KE=\frac{1}{2} \cdot 3 \cdot 9}\)

\(\mathrm{KE=\frac{1}{2} \cdot 27}\)

\(\mathrm{KE} =13.5\)

The kinetic energy of the ball is 13.5 Joules.

Answer:

Kinetic energy =1/2mv^2.

1/2×3×3^2.

1/2×27=13.5 or 13 whole number 1/2.

A pendulum should be approximately 3.23 meters long to have a period of 3.61 seconds.

The period of a pendulum, which is the time it takes for one complete oscillation, is determined by its length. The equation that relates the period (T) to the length (L) of a pendulum is:

T = 2π√(L/g)

where g is the acceleration due to gravity (approximately 9.8 m/s²).

Rearranging the equation to solve for the length:

L = (T²g)/(4π²)

Substituting the given period T = 3.61 s and the acceleration due to gravity g = 9.8 m/s² into the equation:

L = (3.61² × 9.8) / (4π²)

= (13.0321 × 9.8) / (4π²)

= 127.5758 / (4π²)

≈ 127.5758 / 39.478

≈ 3.2298 m

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Answer:

Pressure is the force acting normally per unit area.

Force.

Area.

This also proved by formula:

P=F/A.

Also pressure due to liquid depends on density ,gravity and height

Answer:

22.9km

Explanation:

If the mountain is 1.00 km higher in elevation than your position and the angle measured from your position to the top of a mountain is 2.50∘.then you would have been 22.9 km far away from the mountain

A right-angled triangle's side ratios are the easiest way to express a function of an arc or angle, such as the sine, cosine, tangent, cotangent, secant, or cosecant. These functions are known as trigonometric functions.

As given in the problem you measure the angle from your position to the top of a mountain to be 2.50∘. If the mountain is 1.00 km higher in elevation than your position,

By using the tangent trigonometric function for the right triangle

tanθ = height /distance

tan 2.5° = 1000 m /distance

distance =1000 m /tan 2.5°

              =22903 m

              =22.9 km

Thus, the mountain is 22.9 km far away from your position

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Answer:

Explanation:

I dont understand what its saying .....?

Answer:

yes

Explanation:

because -20m/s means decrease in acceleration and Time , why 10m/s means increase in acceleration and Time

Answer:

Yeah, you can make gold from other elements.

Explanation:

To make gold out of other elements you need to have a nuclear reaction.

I hope it helps! Have a great day!
Muffin ^^

Answer:

Yes.

Explanation:

Gold can be made from other elements but it is too expensive so it’s not really worth it.

I hope it helps! Have a great day!

bren~

Answer:

the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge

Explanation:

The differential heating of Land and water depends on amount of solar energy reaching earth.

Land is a better conductor of heat than water, heating up and cooling down faster than water.

In summer, amount of solar radiation is highest hence difference of water and land temperature is highest. Air over land heats up and expands hence the air rises above. This rising air is replaced with the surrounding air rich in moisture content from over ocean surface. The degree of differential heating depends on amount of solar energy reaching earth's surface.

This results in Sea Breeze which is from a large body of water towards landmass due to difference in pressure created.

Land Breeze blows towards sea from land at night. It is due to difference in rate of cooling of land and ocean.

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The tension with which the rope with length 3.20 m and mass 0.130 kg must be stretched  for transverse waves of frequency 50.0 Hz to have a wavelength of 0.790 m is 62.41 N

μ = m / L

v = f λ

v = Wave speed

μ = Linear density

m = Mass

L = Length

m = 0.13 kg

L = 3.2 m

μ = 0.13 / 3.2

μ = 0.04 kg / m

f = 50 Hz

λ = 0.79 m

v = 50 * 0.79

v = 39.5 m / s

v = √ F / μ

F = Tension force

F = μ v²

F = 0.04 * 39.5²

F = 62.41 N

Therefore, the tension with which the rope must be stretched is 62.41 N

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Answer:2 x 10^-5K^-1

Explanation:

The solution is in the attached file

Answer:

true

Explanation:

Answer:

b

Explanation:

Answer:

they transfer energy

Explanation: