A battery with voltage 1.5 V is connected to a fan. The fan uses 345 mW of power. What is the current going through the circuit? _____ A. The fan is now connected to a battery with V=15 V. How much power does the fan use now? ______ W.

Answer:

The correct option is b: A solute depresses the freezing point because the solute disrupts the crystal formation of the solvent.

Explanation:

The depression of the solvent's freezing point is caused by the addition of a solute because the presence of the molecules of the solute interferes in the arrange and close up of the molecules of the solvent to form the crystal of the solid.

The attraction of the solute molecules to the solvent molecules interfere with the formation of the solid, so the solution must be cooled to a lower temperature so it can form the solid.

Hence, the correct option is b: A solute depresses the freezing point because the solute disrupts the crystal formation of the solvent. The other options are incorrect.

I hope it helps you!              

Answer:

''The combination of Earth's tilted axis and its revolution causes the atmosphere to be unequally heated by the sun.'' - jordanmiya23

Explanation:

this has been answered before

The plane travels a distance of 325 miles if the airplane travels for 2.5 hours at an average speed of 130 miles per hour. Using the distance formula (d = rt), we can calculate the distance.

To find the distance traveled by the airplane, we can use the distance formula, which is represented as d = rt. In this formula, "d" represents the distance, "r" represents the rate or speed at which the object is traveling, and "t" represents the time taken for the travel.

Given that the airplane travels for 2.5 hours at an average rate of 130 miles per hour, we can substitute these values into the formula. The rate of the airplane is 130 miles per hour, and the time taken is 2.5 hours.

Using the formula, we can calculate the distance traveled as follows:

d = rt

d = 130 mph × 2.5 hours

Multiplying the rate (130 mph) by the time (2.5 hours) gives us:

d = 325 miles

Therefore, the airplane travels a distance of 325 miles during the 2.5 hours of travel at an average rate of 130 miles per hour.

To know more about distance here https://brainly.com/question/30395212

#SPJ4

Answer:

Let's define t = 0 as the moment when the ball hits the wall.

in this moment, we have a given acceleration, but if we only want to calculate the average acceleration, then let's consider the acceleration constant.

a(t) = A.

To find the velocity equation we should integrate, and the constant of integration will be the initial velocity, in this case, is 14.3m/s.

v(t) = A*t + 14.3m/s

Now we know that at t = 0.011s, the velocity is -13.5m/s (the sign is negative because the ball is moving in the opposite direction as before).

Then we can solve the equation:

v(0.011s) = -13.5m/s = A*0.011s + 14.3m/s

Now we can solve it for A, the average acceleration:

-13.5m/s - 14.3m/s = A*0.011s

(-27.8m/s)/0.011s = A = -1313.5 m/s^2

The development of integrated photonics has been a key factor in increasing network speeds by enabling the transmission of large amounts of data over optical fibers.

photonics refers to the technology of creating optical devices and systems using semiconductor fabrication techniques, similar to those used in the production of electronic integrated circuits.

One of the most significant contributions of integrated photonics to increasing network speeds is the creation of photonic integrated circuits (PICs). PICs are made up of multiple optical components, such as lasers, modulators, and detectors, integrated onto a single chip. This integration enables faster and more efficient communication between the components, reducing signal loss and improving overall performance.

Learn about integrated photonics here https://brainly.com/question/19538214

#SPJ1

Answer:

Gravity force

Explanation:

Answer:

grav force

Explanation:

The electric flux through the circular sheet is 0.70685 × 10⁶ nm²/c.

The electric flux through a circular sheet in a uniform electric field can be calculated using the formula

Φ = E×A, where Φ is the electric flux, E is the magnitude of the electric field, and A is the area of the circular sheet.

First, we need to calculate the area of the circular sheet using the formula A = πr², where r is the radius of the circular sheet. A = π×(3 m)² = 28.274 m²

Next, we can plug in the values for E and A into the formula for electric flux:

Φ = (2.5 × 10^4 n/c)x(28.274 m²) = 7.0685 × 10⁵ nm²/c

Finally, we can convert the units of the electric flux to 10⁶ nm²/c by dividing by 10⁶:

Φ = (7.0685 × 10⁵ nm²/c)/(10⁶) = 0.70685 × 10⁶ nm²/c

Therefore, the electric flux through the circular sheet is 0.70685 × 10⁶ nm²/c.

Learn more about electric flux at

https://brainly.com/question/30267804

#SPJ11

Answer:

b

Explanation:

Answer:

Reside in the state she represents.

Explanation:

Every position in government needs at least one qualification. she needs to reside in the state she represents because U.S Senators represent their state witht he views and stuff.

Hope this helps :)

Answer:

True

Explanation:

There is a 9000N force was exerted on the roller coaster to bring it to a stop. Option D.

Forces are influences that can change the movement of an object. A force can cause a mass to accelerate, thus changing its velocity. Forces can also be described intuitively by pushing or pulling. The word "force" has a precise meaning.

At this level, it is appropriate to describe the force as pushing or pulling. A force does not contain or have within an object. A force is applied from one object to another. The idea of ​​force is not limited to animate or inanimate objects.

Learn more about A force here:- https://brainly.com/question/12970081

#SPJ4

The soccer ball, kicked horizontally with an initial velocity of 30.67 m/s, lands approximately 92 meters from the base of the building.

When a projectile is launched horizontally, its horizontal motion is unaffected by gravity. In this case, the time it takes for the soccer ball to reach the ground is determined solely by its vertical motion. We can use the equation:

h=\(\frac{1}{2} gt^{2}\)

where h is the height of the building (45 m) and g is the acceleration due to gravity (approximately 9.8 m/s^2). Solving for t, we find:

\(t=\sqrt{\frac{2h}{g}}\)

Plugging in the values, we get:

\(t=\sqrt{\frac{2\times 45}{9.8} }\)

Since the horizontal velocity is constant at 30.67 m/s, the distance traveled by the soccer ball is:

\(d=horizontal velocity \times time\)

\(\approx 30.67\times 3.02\approx92.65 meters\)

Therefore, the soccer ball lands approximately 92 meters from the base of the building.

To learn more about, velocity, click here, https://brainly.com/question/30559316

#SPJ11

(a) A = B × r is a vector potential for B, where r = {x, y, 0}.

(b) The flux through a surface S can be calculated as Φ = ∫B·dA, where B is the magnetic field and dA is an infinitesimal area vector perpendicular to the surface.

(a) To verify that A = B × r is a vector potential for B, we need to show that ∇ × A = B.

Using the cross product property, we have ∇ × A = ∇ × (B × r). Applying the vector identity (A × B) × C = B(A · C) - C(A · B), we get ∇ × (B × r) = B(∇ · r) - r(∇ · B).

Since ∇ · r = 0 (as r = {x, y, 0}), and ∇ · B = 0 (as B has a constant magnitude in the z-direction), we find that ∇ × A = B, verifying A = B × r as the vector potential for B.

(b) The flux through a surface S can be calculated as Φ = ∫B·dA, where B is the magnetic field and dA is an infinitesimal area vector perpendicular to the surface.

Given that B has a constant strength b teslas in the z-direction, the flux through surface S will be Φ = ∫B·dA = ∫(0, 0, b) · (dxdy) = b∫dxdy = bA, where A is the area of the surface S.

To know more about magnitude, refer here:

https://brainly.com/question/31022175#

#SPJ4

The true azimuth of the AB alignment is 91º 52' (east of north), the magnetic azimuth is 100º 22' (east of north), and the grid azimuth is 108º 52' (east of north).

To find the true azimuth, magnetic azimuth, and grid azimuth of the AB alignment, we need to consider the magnetic declination. The magnetic declination indicates the angle between true north and magnetic north at a specific location. In this case, the magnetic declination is 8º 30' E, which means that the magnetic north is 8º 30' east of the true north.

To calculate the true azimuth, we subtract the magnetic declination from the grid azimuth. The grid azimuth is given as 100º 22', so subtracting the magnetic declination of 8º 30' E gives us a true azimuth of 91º 52' (east of north).

The magnetic azimuth remains the same as the grid azimuth, which is 100º 22' (east of north).

The grid azimuth is calculated by adding the magnetic declination to the true azimuth. Since the magnetic declination is east, we add it to the true azimuth. Adding 8º 30' E to the true azimuth of 91º 52' gives us a grid azimuth of 108º 52' (east of north).

Learn more about magnetic declination here:

https://brainly.com/question/18597422

#SPJ11

Answer:

B

Explanation:

All the other ones are opinions or opinion based

The question that how many hours a day dolphins sleep requires the collection of data to answer it. Hence, option B is correct.

Dolphins are small-toothed cetaceans that are distinguished by their always open, curving mouths. Every ocean contains one of the 36 dolphin species. The majority of dolphins are marine mammals that inhabit the sea or coastal environments with brackish water. However, there are a few species that live in freshwater streams and rivers, including the South Asian river dolphin and the Amazon River dolphin, or boto.

The orca, the biggest dolphin, can reach lengths of more than 30 feet. The Maui dolphin, which is the smallest, is only five feet long.

Dolphins mostly consume fish and squid, which they can locate via echolocation, an inbuilt sonar system that reflects sound waves off prey to disclose details about its location, size, and shape. Up to a thousand clicking sounds can be heard every second from an echo locating bottlenose dolphin.

To get more information about Dolphins :

https://brainly.com/question/21082920

#SPJ5

The technique of using the fingertips to tap on a surface to determine the condition beneath is called Percussion.

In medicine, the technique is used by medical professionals to determine the state of internal organs or other tissues within the body by tapping on the surface of the body to assess the condition of the internal organs. It is a simple and non-invasive technique that is used to determine if there is fluid or air within a particular area of the body.

Percussion is done by tapping the surface of the skin with the fingertips and listening for the sounds produced. The sounds produced help the medical professional to identify whether the area under examination is solid, hollow or fluid-filled. For example, if the area being examined is filled with air, the sound produced is likely to be a loud, low-pitched tone. If, however, the area is filled with fluid, the sound produced will be a high-pitched tone, and if the area is solid, there will be no sound produced at all. In conclusion, Percussion is a technique that is widely used in medicine and is at the fingertips of all medical professionals. The technique involves tapping on the surface of the skin and listening for sounds to determine the condition of the internal organs or other tissues within the body.

To know more about Percussion visit:

https://brainly.com/question/31625514

#SPJ11

Answer:

Net force = 509.90 N

Explanation:

Given that,

Force exerted by wind is 500 N South on a sailboat.

The force exerted by water is 100 N on the sailboat.

Two forces are acting at an angle of 90 degrees. We can find the net force acting on the sailboat. Let it is F.

\(F=\sqrt{500^2+100^2} \\\\=509.90\ N\)

So, the net force on the sailboat is 509.90 N.

Answer:

Explanation:

A cathode-ray tube is a device that uses a beam of electrons in order to produce an image on a screen. Cathode-ray tubes, also known commonly as CRTs, are widely used in a number of electrical devices such as computer screens, television sets, radar screens, and oscilloscopes used for scientific and medical purposes.

Answer:

The mechanical advantage of a machine is the ratio of the load (the resistance overcome by a machine) to the effort (the force applied)

Explanation:

There is no unit for mechanical advantages since the unit for both input and output forces cancel out.

Please give Brainliest

Answer:

there is no unit for mechanical advantages since the unit for both input and output forces cancel out

Answer:

Explanation:

1- incident ray

2- the substance through which the wave travels

Answer: the incident ray(the incident ray is the ray striking the mirror at the point of incidence while the refracted ray is the ray leaving the mirror)

The substance through which the ray or wave travels.

Given:

• Distance = 150 km

• Speed = 50 km/hr

Let's find the time it will take to cover the distance in minutes.

To find the distance, apply the formula:

Thus, we have:

The time in hours is 3 hours.

To convert the time from hours to minutes, we have:

60 minutes = 1 hour

3 hours = 3 x 60 = 180 minutes

Therefore, it time in minutes is 180 minutes.

ANSWER:

180 minutes

\(\pink{\bigstar}\) The acceleration of the wheelchair is \(\large\leadsto\boxed{\tt\purple{0.5625 \: m/s^2}}\)

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

We know,

• Third Equation of Motion:-

\(\pink{\bigstar}\) \(\large\underline{\boxed{\bf\green{v^2 - u^2 = 2as}}}\)

where,

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

• Substituting the values in the Formula:-

➪ \(\sf (1.5)^2 - (0)^2 = 2 \times a \times 2\)

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ \(\sf 2.25 - 0 = 4 \times a\)

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ \(\sf 2.25 = 4 \times a\)

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ \(\sf a = \dfrac{2.25}{4}\)

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

★ \(\large{\bold\red{a = 0.5625 \: m/s^2}}\)

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Therefore, the acceleration of the wheelchair is 0.5625 m/s².

Answer:

B because Needs are things that are essential to life but wants are just extra.

Explanation:

For example food and water is needed for life but a want would be to have the latest I phone

A major difference between economic wants and economic needs is: B- Needs are more important to survival than wants.

Economic wants can be defined as the goods and services that are desired by consumers but are not important for their survival. Some examples of economic wants are mobile phone, automobile cars, computer, clothes, television, furniture, etc.

Economic needs can be defined as the goods and services that are required by the people or consumers for their daily survival. Some examples of economic needs are: shelter, food, water, land, air, etc.

In conclusion, economic wants are less important because they are just our different desires in life but economic needs are very important and significant for the daily survival of humans because they are the basics of life.

Find more information: https://brainly.com/question/1515363

Answer: Flying into the wind provides more lift, but reduces the plane's “ground speed”, the speed of the plane relative to the ground hope this helps

Answer:

Refraction

Explanation:

A pencil bends when it enters the water media due to the phenomenon of refraction.

Answer:

90m

Explanation:

Given that an arrow is shot horizontally from a height of 4.9 m above the ground. The initial speed of the arrow is 45 m/s.

Since the arrow is shot horizontally, the initial vertical velocity will be equal to zero.

Using the second equation of motion,

h = Ut + 1/2gt^2

substitute h = 4.9m and g into the formula

4.9 = 1/2 × 9.8 × t^2

4.9 = 4.9t^2

t^2 = 4.9/ 4.9

t = 1

For horizontal motion g = 0 and the total time T = 2t

T = 2 × 1

T = 2

Substitute T and U into the equation

R = UT

R = 45 × 2

R = 90m

Therefore, the arrow will hit the ground 90m away from the archer.

Answer: 45 meters.

Explanation:

First, let's calculate the time that the arrow needs to hit the ground.

Let's analyze the vertical axis.

The only force acting on the arrow is the gravitational force, then the only acceleration will be the gravitational acceleration.

We can write this as:

a(t) = -g

where  = 9.8m/s^2

For the vertical velocity, we can integrate the above equation over the time:

v(t) = -g*t + v0

where t is our variable, the time in seconds, and v0 is the initial vertical velocity.

But we know that the arrow is shot horizontally, then we don't have initial vertical velocity: v0 = 0m/s.

v(t) = -g*t

and the vertical position can be obtained integrating again.

p(t) = -0.5*g*t^2 + p0

Where p0 is the initial position, we know that this is 4.9 meters, then the position equation is:

p(t) = -0.5*9.8m/s^2*t^2 + 4.9m

Now we want to find the value of t where the position is equal to zero, this will be the time that the arrow needs to hit the ground.

0 = -0.5*9.8m/s^2*t^2 + 4.9m

t^2 = 4.9/(0.5*9.8) s^2

t = √( 4.9/(0.5*9.8) s^2 ) = 1s

Now let's analyze the horizontal case.

As we can neglect the air resistance, the horizontal velocity is constant:

v(t) = 45m/s

And the position will be:

V(t) = 45m/s*t + p0

Where in this case p0 is the position of the archer, that we can define as our zero in this axis, then p0 = 0m

Now we know that the vertical displacement of the arrow when it hits the ground will be:

p(1s) = 45m/s*1s = 45m

Answer:

16

Explanation:

it goes up 4 each dash

Answer:

16

Explanation: