why is magnetic field used to deflect electron beam but not an electric field in a TV picture tube?​

Answer:

Because the atmosphere is so thin, high wind velocities are needed to move sand and dust.

The prove of  Angle XYZ- Angle NYM is given below:

Note that from the image given;

Since ∠XYZ is said to be congruent to ∠NYM it can be proven by the use of the reflexive property.

The reflexive property is one that informs that any shape is regarded congruent to itself.

Since ∠NYM has a different way to call ∠XYZ that uses a different vertexes, but the sides are made up of the two angles which are said to be the same.

Therefore , ∠XYZ ≡ ∠NYM are proved by the reflexive property.

Since ΔXYZ is the same with Δ NYM, it can be proven by the AA (angle-angle) similarity theorem.

We have 2 angles Δ XYZ and Δ NYM:

Note that ∠YXZ ≡ ∠YNM

              ∠XYZ ≡ ∠NYM

So,  ΔXYZ is said to be the same to ΔNYM and it is proven by the AA similarity theorem.

Therefore, The prove of  Angle XYZ- Angle NYM is given below:

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Answer:

1. parrael

2. corresponding angles theorem

3. NYM

4. AA

Explanation:

just took it

Answer:

Beryllium chloride

Explanation:

I hope this helps!

Can I get branliest?!

Explanation:What is centripetal acceleration?

Can an object accelerate if it's moving with constant speed? Yup! Many people find this counter-intuitive at first because they forget that changes in the direction of motion of an object—even if the object is maintaining a constant speed—still count as acceleration.

Acceleration is a change in velocity, either in its magnitude—i.e., speed—or in its direction, or both. In uniform circular motion, the direction of the velocity changes constantly, so there is always an associated acceleration, even though the speed might be constant. You experience this acceleration yourself when you turn a corner in your car—if you hold the wheel steady during a turn and move at constant speed, you are in uniform circular motion. What you notice is a sideways acceleration because you and the car are changing direction. The sharper the curve and the greater your speed, the more noticeable this acceleration will become. In this section we'll examine the direction and magnitude of that acceleration.

The figure below shows an object moving in a circular path at constant speed. The direction of the instantaneous velocity is shown at two points along the path. Acceleration is in the direction of the change in velocity, which points directly toward the center of rotation—the center of the circular path. This direction is shown with the vector diagram in the figure. We call the acceleration of an object moving in uniform circular motion—resulting from a net external force—the centripetal acceleration

a

c

a

c

​

a, start subscript, c, end subscript; centripetal means “toward the center” or “center seeking”.

The rate οf change οf temperature with respect tο time is apprοximately -0.4223 K/min.

Tο find the rate οf change οf temperature (T) with respect tο time (t) at a certain instant, we can use the ideal gas law equatiοn PV = nRT and differentiate it with respect tο time:

PV = nRT

Taking the derivative with respect tο time:

P(dV/dt) + V(dP/dt) = nR(dT/dt)

Since we are interested in finding dT/dt, we can rearrange the equatiοn:

(dT/dt) = (P(dV/dt) + V(dP/dt)) / (nR)

Substituting the given values:

P = 7.0 atm

dV/dt = -0.17 L/min (negative sign indicates a decrease in vοlume)

dP/dt = 0.11 atm/min

n = 10 mοl

R = 0.0621 L·atm/(mοl·K)

(dT/dt) = (7.0 atm * (-0.17 L/min) + 12 L * 0.11 atm/min) / (10 mοl * 0.0621 L·atm/(mοl·K))

Calculating the rate οf change οf temperature:

(dT/dt) ≈ -0.4223 K/min

Therefοre, at that instant, the rate οf change οf temperature with respect tο time is apprοximately -0.4223 K/min.

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The de - acceleration of bullet from 360 m/s after it struck the tree trunk and was brought to rest is -152.54 x 10⁴ m/s².

Acceleration is defined as the rate of change of velocity with respect to time. Mathematically -

Given is a bullet initially travelling at 360 m/s struck into a tree trunk 8.5 cm inside and comes to rest. From this, we can write

initial velocity [u] = 360 m/s

final velocity [v] = 0 m/s

distance travelled [d] = 8.5 cm = 0.085 m

The time span after which bullet comes to rest will be -

Δt = d/u

Δt = 0.085/360 = 2.36 x 10 ⁻⁴ seconds

a = Δv/Δt

Δv = 0 - 360 = - 360 m/s

a = (v - u)/Δt

a = - 360/(2.36 x 10 ⁻⁴)

a = - 152.54 x 10⁴ m/s²

Therefore, the de - acceleration of bullet from 360 m/s after it struck the tree trunk and was brought to rest is -152.54 x 10⁴ m/s².

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The solar wind, with a constant temperature of 1.3x10^5 K and a speed of 450 km/s, is a highly ionized plasma.

The solar wind, which is a stream of charged particles (plasma) emitted by the Sun, exhibits characteristics of a highly ionized plasma. As it travels from the Sun to the Earth, the solar wind encounters variations in temperature, density, pressure, and speed. In this case, with a constant temperature of 1.3x10^5 K and a speed of 450 km/s, the solar wind can be classified as a highly ionized plasma.

During a Coronal Mass Ejection (CME), eruptive phenomena on the Sun's surface cause a sudden release of a large amount of plasma and magnetic fields into space. This disturbance leads to an increase in the temperature of the solar wind to around 10^7 K and an increase in its speed to approximately 10^3 km/s. This enhanced energy and velocity result in a significant disruption of the solar wind's flow, making it a turbulent fluid.

Turbulent fluids are characterized by chaotic and irregular motion, with strong fluctuations and mixing. The increased temperature and speed during a CME generate turbulent behavior within the solar wind, leading to the disruption and mixing of plasma particles along its trajectory.

To determine the type of fluid flow, the Reynolds number (Re) is often used. It relates the flow's characteristics, such as velocity and length, to the fluid's viscosity. In this case, since the solar wind is a plasma and has negligible viscosity, the Reynolds number is extremely high, well above the turbulent threshold of 4000. Therefore, the solar wind with increased temperature and speed due to a CME can be classified as a turbulent fluid.

In summary, the solar wind, with a constant temperature of 1.3x10^5 K and a speed of 450 km/s, is a highly ionized plasma. However, during a Coronal Mass Ejection (CME), the temperature and speed of the solar wind increase significantly, leading to turbulent fluid behavior.

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Answer:

vf = 56.7 m/s

Explanation:

vi = 6.7 m/s

a = 5.00 m/s^2

t = 10 sec

vf = ?

a = (vf - vi )/t

5 = (vf - vi)/10

5 * 10 = vf - 6.7          

50 + 6.7 = vf

vf = 56.7 m/s

The branches that sometimes occur along the length of an axon are called axon collaterals.

Axon collaterals are the branches that occasionally emerge from the main axon shaft. They can extend at various points along the axon's length and allow for communication between different neurons or neuronal circuits. Axons are long, slender projections of nerve cells responsible for transmitting electrical impulses, known as action potentials, away from the cell body. These axonal branches or collaterals can diverge and form connections with other neurons, enabling the transmission of signals to multiple targets simultaneously.

Axon collaterals play a vital role in neuronal communication and the integration of information within the nervous system. They provide a mechanism for branching connectivity, allowing a single axon to relay signals to multiple target cells. This branching architecture enables the coordination and synchronization of neural activity across different regions of the brain and facilitates complex information processing. Axon collaterals contribute to the extensive network of interconnected neurons, forming the basis for neural circuits and enabling the transmission of information throughout the nervous system.

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why did my answer get deleted??

oh yeah i put a link on there- oopsies.

I wont this time!

I got 30!

Answer:

Muscle memory is found in many everyday activities that become automatic and improve with practice, such as riding bicycles, driving motor vehicles, playing ball sports, typing on keyboards, entering PINs, playing musical instruments, poker, martial arts, and dancing.

Explanation:

To find the distance from Noah to the nearby canyon wall, we need to first calculate the distance the sound wave traveled in one direction.

Since the echo is heard 0.82 seconds after the scream, we know that the sound wave traveled twice the distance from Noah to the nearby canyon wall. This is because the sound wave traveled from Noah to the wall, then bounced back off the wall and traveled back to Noah.

Using the formula distance = speed x time, we can calculate the one-way distance from Noah to the wall:

distance = speed x time / 2
distance = 342 m/s x 0.82 s / 2
distance = 140.82 meters

Therefore, the distance from Noah to the nearby canyon wall is approximately 140.82 meters.

To calculate the distance from Noah to the nearby canyon wall, we can use the formula for the speed of sound:

Distance (d) = Speed (v) × Time (t)

Since the time given (0.82 seconds) is for the sound to travel to the canyon wall and back (2-way), we need to divide it by 2 to get the time for a one-way trip:

One-way time = 0.82 s / 2 = 0.41 s

Now, we can plug in the given speed of sound and the one-way time into the formula:

Distance (d) = 342 m/s × 0.41 s

Distance (d) ≈ 140.22 meters

So, the distance from Noah to the nearby canyon wall is approximately 140.22 meters.

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Answer: When a funnel is dipped into a liquid soap solution, soap molecules from the solution stick to the surface of the funnel and form a thin film. As the film becomes thinner, it reaches a point where it can no longer support its own weight, and gravity causes it to detach from the funnel and form a soap bubble.

When the funnel is removed, the soap bubble remains intact due to the surface tension of the soap film. Soap molecules have hydrophilic (water-attracting) and hydrophobic (water-repelling) ends, which enable them to form a stable film at the surface of the liquid. The surface tension of the soap film creates a force that tries to minimize the surface area of the bubble, which is why soap bubbles tend to form spherical shapes.

However, the soap bubble is not stable and will eventually burst due to a number of factors, such as evaporation of the liquid, changes in temperature or humidity, or contact with other objects. When the soap bubble bursts, the soap film breaks apart and the soap molecules mix with the surrounding air or liquid.

Explanation:

When a funnel is dipped into a soap solution and removed, a soap bubble forms due to the surface tension of the soap solution. As air is blown into it, the bubble expands until it pops when the soap film can't withstand the pressure difference anymore.

When a funnel is dipped into a liquid soap solution and then removed, a soap bubble forms at the end of the funnel. This phenomenon occurs due to a property of liquids known as surface tension. Surface tension is the force that causes the liquid surface to contract, thus forming a shape with the minimum possible area, a sphere.

After the funnel is dipped into the soap solution, a thin film of soap solution forms inside it. When the horn is removed and the air is blown from the other end, the air trapped inside the thin soap film expands to include a bubble.

Eventually, gravity causes the liquid soap to flow downwards, thinning the top of the bubble, and the bubble will pop when the film is too thin to sustain the pressure difference between the inside and outside. So, stating and explaining what happens to the bubble when the funnel is removed can also take into consideration the effect of gravity in this process.

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Answer: B) zero because both objects are at rest

Explanation:

Given the following :

Mass of anchor = 10kg

Mass of boat = 1000kg

Note : both boay and anchor are at rest, this gives a Velocity of zero

The momentum of a body is given as the product of Mass and velocity, that is,

Momentum = mass × velocity

Initial Momentum of anchor-boat system =

(mass of boat× initial velocity of boat) + (mass of anchor × initial velocity of anchor)

Initial Velocities of boat and anchor = 0

Therefore,

Initial momentum = (1000 × 0) + (10 × 0)

Initial momentum = (0 + 0) = 0

This is ecause both objects are at rest.

During the Dynamic and Static Power Ballistic Ball test, there are several potential sources of error that can affect the accuracy and reliability of the results. Conducting careful calibration, using appropriate techniques, and implementing controls to minimize these sources of error will contribute to obtaining more accurate and reliable results in the Dynamic and Static Power Ballistic Ball test.

Three common sources of error and their possible corrections are:

Measurement Error: Errors in measuring the parameters such as velocity, mass, or distance can introduce inaccuracies in the calculations. This can be due to limitations in measurement devices or human error during the data collection process. To minimize measurement errors, it is important to use calibrated instruments, take multiple measurements for better precision, and ensure proper training and technique in data collection.

Air Resistance: The presence of air resistance can significantly affect the motion of the ballistic ball and lead to deviations from the expected results. Air resistance depends on factors such as the shape and surface area of the ball, as well as the velocity. To minimize this error, one can conduct the experiment in a vacuum chamber or use a more streamlined and aerodynamic ball design. Alternatively, the effects of air resistance can be estimated and corrected using mathematical models or by measuring it separately and factoring it into the calculations.

Friction: Friction between the ball and the surface on which it rolls can cause energy loss and affect the ball's motion. This can result in lower velocities or altered trajectories. To minimize friction-related errors, one can use a smoother surface for the ball to roll on, ensure proper lubrication or reduce contact area between the ball and the surface. Additionally, taking multiple measurements and averaging the results can help reduce the impact of frictional variations.

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Answer:

6Newton meter is the answer.

Explanation:

Mass=m=3kg

Velocity=v=2m/s

Kinetic energy =K.E.=?

As we know that

K.E.=1/2mv^2

Putting the values

K.E.=1/2✖️3kg✖️(2m/s)^2

K.E.=1/2✖️3kg✖️4m^2/s^2

K.E=1/2✖️12Nm

K.E.=6Nm is your answer

Hope it will help you :)

The kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second is E = 6 joules.

To find the Kinetic Energy, the given details are

Mass of the ball, m = 3 kg

Speed of the bag, v = 2 m/s

The energy that is possessed due to the motion of an object is called the kinetic energy of the ball.

Its formula is given by :

E = 1/2 mv²

E = \(\frac{1}{2}\) (3)(2)²

E = 6 joules

So, the kinetic energy of the ball is 6 joules. Hence, this is the required solution.

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if the dark body's absolute temperature doubles. Power will be released. Consequently, a factor of 16 increase in power radiation will occur.

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The electrical input is maximum at the heater closest to the leading edge of the plate, with a value of 56.2 W.

The heat transfer coefficient is highest at the leading edge of the plate, where the flow is undisturbed, and decreases downstream due to the development of a boundary layer. Therefore, the electrical input is highest at the heater closest to the leading edge.

The Nusselt number, which relates the heat transfer coefficient to the flow conditions, can be calculated using empirical correlations and used to determine the electrical input. For this particular case, the maximum electrical input is 56.2 W and occurs at the first heater. It is important to note that this calculation assumes a steady-state condition and a uniform flow over the entire plate, which may not be accurate in real-world scenarios.

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d = vi*t + 0.5*a*t. equation should you use to solve this problem

Speed is the overall distance an item travels in a given amount of time. It is solely based on the size of the moving item. Meter/second is the measurement of speed. A metre per second is the commonly used measurement of speed.

The following is the mathematical formula for speed:

speed equals entire distance / total time

As stated in the challenge, Superman is travelling at 54.5 m/s when he notices a train 850 metres away that is about to crash into a river. In 4.22 seconds, he arrives to the train.

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Answer:

true

Explanation:

for example assume you are setting in a moving bus and when someone see you from the ground you are in motion but for some who is with you in the bus you are not in motion.

Answer:

The speed of the object will be "2.4 m/s".

Explanation:

The given values are:

Kinetic energy,

K.E = 90 J

Mass,

m = 30 kg

Speed,

v = ?

As we know,

⇒  \(K.E=\frac{1}{2} (mass\times speed^2)\)

On substituting the values, we get

⇒  \(90=\frac{1}{2} (30\times v^2)\)

⇒  \(90=15\times v^2\)

⇒  \(v^2=\frac{90}{15}\)

⇒  \(v^2=6\)

⇒  \(v=\sqrt{6}\)

⇒  \(v=2.44 \ m/s\)

Answer:

hey are you ok!?!?!?!

Explanation:

Is Angie your Dad new gf or wife???

Answer:

:(

Explanation:

u ok?

running away from problems only makes things worse. Your teaching urself to run. but I dont blame u

anyway hope u find what ur looking for out there!!

In the toy model of an amusement park ride, the maximum centripetal force is responsible for keeping the carts moving in a circular path. To calculate this force, we can use the formula:

F_c = m * a_c

Where F_c is the maximum centripetal force, m is the mass of the cart (0.20 kg), and a_c is the centripetal acceleration.
To find the centripetal acceleration, we can use the formula:
a_c = v^2 / r
Where v is the tangential speed (5.6 m/s) and r is the distance from the center of the shaft (0.25 m).
a_c = (5.6 m/s)^2 / 0.25 m = 31.36 m/s^2
Now, we can calculate the maximum centripetal force:
F_c = 0.20 kg * 31.36 m/s^2 = 6.272 N
The maximum centripetal force is 6.272 Newtons.

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The mass of the interstellar cloud is the primary factor that causes its gravitational contraction. The cloud gains mass and increases its gravity as it shrinks, eventually leading to the formation of a protostar.The correct option is a.

The gravitational contraction of an interstellar cloud is primarily the result of its mass. When an interstellar cloud, which is a vast collection of gas, dust, and other matter present in space, starts to shrink due to gravitational attraction, the resulting phenomenon is referred to as gravitational contraction.

The gravitational collapse of an interstellar cloud is caused by its own gravity as it pulls in the gas and dust. The cloud's mass is crucial because it produces a gravitational force that is required for its contraction. As the cloud shrinks, it gains mass, allowing it to increase its gravity and attract more matter from its surroundings until it forms a protostar.

:Gravitational contraction is primarily caused by the mass of an interstellar cloud. The cloud's mass creates a gravitational force that attracts gas and dust towards its center, causing it to collapse. As the cloud shrinks, it gains mass, causing its gravity to increase and draw more matter from its surroundings. This process continues until a protostar forms. Therefore, the mass of the cloud is the most important factor in its gravitational contraction.The correct option is b.

In summary, the mass of the interstellar cloud is the primary factor that causes its gravitational contraction. The cloud gains mass and increases its gravity as it shrinks, eventually leading to the formation of a protostar.

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Answer:

It's true.

And this makes the state of the sun to be "plasma"

Answer: It is False.

Explanation: I am on my final test for Astronomy. And I study really hard and I know its the right answer.

Answer:

Uranium

Explanation:

The most important in atomic research is Uranium, Uranium Can be used as fuel for nuclear power plants and the nuclear reactors that run naval ships and submarines, so option A is correct.

The atom is the smallest unit of matter that may be divided without generating particles with an electrical charge. Additionally, it is the tiniest material with characteristics similar to chemical elements. As a result, the atom acts as the basic building block of chemistry.

Space makes up the majority of an atom. The rest is made up of a positively charged nucleus made up of protons and neutrons that are surrounded by a cloud of negatively charged electrons. The nucleus is small and dense when compared to electrons, which are the lightest charged particles in nature. Electric forces, link electrons to the nucleus of atoms, causing them to be drawn to any positive charge.

Uranium that has been "enriched" to have a higher concentration of U-235 can power nuclear power plants, and It can also be applied to nuclear weapons.

Therefore, uranium is the most important in atomic research.

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Answer:

147N

Explanation:

For an abject moving at constant velocity or at rest, the net force equals 0. Therefore, since there is a 147N force exerted forward, there must also be a 147N friction force dragging it.

Explanation:

Hope it helps~

Answer:

Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field.

Explanation:

correct me if im wrong:)