is a solenoid a magnet or no ??​

Answer:

62400 cm

Explanation:

1 m = 100 cm

624m = 62 400 cm

Answer:

When a proton is placed directly in the path of the proton cannon, it will experience a strong electromagnetic force. The proton cannon emits a beam of protons at high energy and velocity. When the proton in the path of the cannon interacts with the beam, there will be a collision between the two protons.

During the collision, the protons may undergo a process called scattering, where they change direction and momentum. The exact outcome of the collision depends on the energy and angle of the incoming proton, as well as the properties of the target proton. It is possible that the protons may scatter off each other, transferring energy and momentum in the process.

In some cases, the collision may result in the absorption of the incoming proton by the target proton. This can lead to the formation of a more massive particle or the emission of other particles. The specifics of the interaction will depend on the energy and conditions of the proton cannon and the characteristics of the protons involved.

Overall, placing a proton directly in the path of a proton cannon will result in a collision and potential scattering or absorption of the protons, causing changes in their momentum and possibly leading to the creation of other particles.

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Dear student Concept:

The acceleration due to gravity near the earth surface is almost constant and equal to g=9.8m/s2 Here the option A and D ar... More

The amount of gravitational force that acts on a space vehicle while in earth orbit is almost zero but not absolute zero.

There is no ground force or opposing natural force to gravity.

Because the earth is not a perfect sphere, the value of "g" is lowest at the equator. At the equator, its radius is at its largest. Thus, the equator is the location where g will be smallest according to the equation

g = GM/R2.

All items in the planet's gravitational field will be lost in space if gravity abruptly vanishes. We would experience levity. Essentially, if gravity is equal to zero, then there will be no acceleration caused by gravity.

Astronauts can float within their spaceship or outside during a spacewalk in microgravity. Moving heavy stuff is simple. Astronauts, for instance, can merely use their fingertips to manipulate machinery weighing hundreds of pounds.

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F b = (m * v) / t is the formula for the amount of average net force needed to reach a specific velocity.

Average speed is determined by dividing the total distance you travelled by the total time, whereas average velocity is determined by dividing your displacement (a vector pointing from your initial position to your end position) by the whole time.

The following formula can be used to determine the average net force, F b, necessary to reach a specific velocity, v:

F_b = (m * v) / t

Its net force, which is inversely related to its mass, is:

a = F_net / m

The final velocity can be related to the acceleration and time using the following kinematic equation because the fist's velocity is attained from rest:

v = a * t

When we enter the acceleration expression from Newton's second law into this equation, we obtain:

v = (F_net / m) * t

To solve for the net force by rearranging this equation, we obtain:

F_net = (m * v) / t

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When viewed from underwater, the sun appears to set at an angle from the vertical. This change in angle is due to the bending of light rays as they transition from air to water is 45°. Option A is correct.

The angle at which the sun appears to set from the vertical when viewed from underwater is influenced by the phenomenon of refraction. Refraction occurs when light passes from one medium to another with a different optical density, such as from air to water.

When light from the sun enters the water, it undergoes refraction due to the change in the speed of light between the two mediums. This refraction causes the path of light to bend, and as a result, the apparent position of the sun is shifted.

The exact angle at which the sun appears to set from the vertical underwater depends on various factors such as the observer's location, the depth of the water, and the atmospheric conditions. However, in general, the sun appears to set at a steeper refraction of light angle from the vertical compared to its apparent sunset angle when viewed from above the water's surface creating an apparent displacement of the sun's position when observed underwater.

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The complete question is

As viewed from underwater, at what angle from the vertical does the sun appear to set?

A. 45°

B. 0°

C. 90°

D. 41°

E. 49°

Answer:

the two objects are in thermal equilibrium

Explanation:

thermal equilibrium us the state where two bodies or objects have the same amount of temperature thus no heat conduction

Answer:

Umm Lucy will weigh to many pounds

Explanation:

Answer:

N = q / e    where q is the total charge on the ion and e = 1.6E-19 the charge on an electron or N = coulombs / (coulombs / electron)

Answer:

The answer to your problem is, \(3.125 * 10^{19}\) in electrons per second

Explanation:

5A current is passing through the copper wire and the light bulb; it means that 5 Coulombs of charge per second is passing through the wire (as current = coulombs/second). To find the electrons per second, the following formula is used:

Electrons per second =

\(N_{e} = \frac{5}{e} = \frac{5}{1.60-10^{-19} }\)

\(= 3.125 * 10^{19}\)

Thus the answer to your problem is, \(3.125 * 10^{19}\)

Explanation:

The theory of speciation confirms what happens with fireflies, only fireflies that are part of the same species can reproduce among themselves, which means that fireflies that use pheromones as mating signals will attract fireflies that use that same form or mechanism of reproduction.

Some mechanisms that allow this type of differentiation or speciation to occur are: seasonal or geographic isolation and sexual isolation due to behavior or conduct.

Speciation allows the formation of new populations of organisms that share the same physiological and genetic characteristics. Therefore, the adult fireflies that shine as a mating signal are possibly found in the same geographical position and their physiological and genetic characteristics are compatible with those of his own species.

The mean stress is the average of the maximum and minimum principal stresses, represented by σmean. To draw the mean stress Mohr circle, draw a horizontal line at the height of the mean stress (4 kb) and label it.

To draw a Mohr circle for a state of stress characterized by deviatoric principal stresses of σ1′ = 3 kb, σ3′ = -3 kb, and a mean stress of 4 kb, follow these steps:

1. Calculate the maximum and minimum principal stresses:
  The maximum principal stress (σ1) is given by:
  σ1 = σmean + σ1′ = 4 kb + 3 kb = 7 kb

  The minimum principal stress (σ3) is given by:
  σ3 = σmean + σ3′ = 4 kb + (-3 kb) = 1 kb

2. Determine the center of the Mohr circle:
  The center of the Mohr circle is located at the point (σmean, 0) on the stress axis. In this case, the center is at (4 kb, 0).

3. Draw the Mohr circle:
  The Mohr circle is a graphical representation of the state of stress. The x-axis represents the normal stress (σ) and the y-axis represents the shear stress (τ). Start by plotting the center point (4 kb, 0).

  To plot the principal stresses, draw two lines from the center point. The line for σ1 will be a vertical line up to the point (7 kb, 0), and the line for σ3 will be a vertical line down to the point (1 kb, 0).

  Connect the two points (7 kb, 0) and (1 kb, 0) with an arc to complete the Mohr circle.

4. Draw the separate Mohr diagrams for deviatoric and mean stresses:
  The deviatoric stress is the difference between the maximum and minimum principal stresses, represented by σ1' and σ3'. To draw the deviatoric Mohr diagram, follow the same steps as above, but plot the deviatoric principal stresses instead of the actual principal stresses. In this case, plot σ1' = 3 kb and σ3' = -3 kb.

  The mean stress is the average of the maximum and minimum principal stresses, represented by σmean. To draw the mean stress Mohr diagram, draw a horizontal line at the height of the mean stress (4 kb) and label it.

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This question involves the concepts of the parallel combination of springs, Hooke's Law and equivalent spring constant.

Each spring will stretch by "25 cm".

For static condition of spring:

Weight of Brick = Extension Force

using Hooke's Law:

\(mg = kx\)

Consider the following data for a single spring:

K₁ = spring constant of single spring = K

x₁ = stretch in single spring = 50 cm

m = mass of brick

g = acceleration due to gravity

Therefore,

\(mg = k_1x_1\\mg = K(50\ cm) ---- eqn(1)\)

Now, for the second scenario, where two identical copies of the single spring are placed side by side in a parallel combination:

K₂ = Equivalent spring constant of the parallel combination of springs

K₂ = K + K = 2K

x₂ = stretch in each spring in the parallel combination of springs = ?

m = mass of brick

g = acceleration due to gravity

Therefore,

\(mg = k_1x_1\\mg = 2K(x_2) ---- eqn(2)\)

dividing eqn (1) and eqn(2), we get:

\(1 = \frac{50\ cm}{2x_2}\\\\\)

x₂ = 25 cm

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The attached picture illustrates Hooke's Law.

Answer:

Below given.

Explanation:

1) Direct

2) Not Direct

3) Direct

4) Not Direct

5) Not Direct

6) Direct

7) Not Direct

8) Not Direct

Answer:

Accuracy is how far off a measurement is from its true value. A measured value that's far from a true value is inaccurate, while a measure that is close to a true value is accurate.

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Answer:

51 miles/hour

Explanation:

Talia is on a road trip with some friends. in the first 2 hours, they travel 100 miles. then they hit traffic and go only 30 miles in the next hour. the last hour of their trip, they drive 75 miles. calculate the average speed of talia’s car during the trip. give your answer to the nearest whole number.

The average speed would be 51 miles/hour.

The average speed of a moving object is defined as the total distance traveled relative to the total time taken fro the journey. Mathematically, it is given as:

  total distance traveled/total time taken.

In this case;

Total distance traveled = 100 + 30 + 75 = 205 miles

Total time taken = 2 + 1 + 1 = 4 hours

Therefore;

Average speed = 205/4 = 51.25 miles/hour

To the nearest whole number = 51 miles/hour

In the cost equation TC = F + VX, V is best described as the slope of the cost equation. Hence, option (c) is correct.

In this equation, TC represents the total cost, F represents the fixed costs (costs that do not vary with changes in activity level), X represents the activity level, and V represents the variable cost per unit of activity. The variable cost is the portion of the total cost that varies with the level of activity.

The slope of the cost equation (V) represents the rate at which the total cost changes with respect to changes in the activity level. It indicates the increase in total cost for each additional unit of activity.

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Answer: L

Explanation: L is the specific latent heat for a particular substance (kJ kg−1 or in BTU lb−1), either Lf for fusion, or Lv for vaporization.

Answer:

22425 J

Explanation:

From the question,

Applying

Q = cm(t₂-t₁).................. Equation 1

Where Q = Thermal Energy, c = specific heat capacity of aluminium, m = mass of aluminium, t₂ = Final Temperature, t₁ = Initial Temperature.

Given: c = 897 J/kg.K, m = 1.0 kg, t₁ = 50 °C, t₂ = 25 °C (The final temperature is reduced by half)

Substitute these values into equation 1

Q = 897×1×(25-50)

Q = 897×(-25)

Q = -22425 J

Hence the thermal energy lost by the aluminium is 22425 J

As of my knowledge cutoff in September 2021, no space probes have flown past Uranus closely enough to take detailed pictures.

The only spacecraft that has ever visited Uranus is Voyager 2, which conducted a flyby of the planet in 1986. During the flyby, Voyager 2 captured images and collected data, providing valuable information about the planet and its moons. However, the images obtained were not at a level of detail considered "detailed pictures" by today's standards. It's important to note that my information is accurate up until September 2021, and there may have been new missions or developments since then. For the most up-to-date information, it is recommended to refer to reliable sources or official space agency announcements.

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Answer:

α = 60 degr

Explanation:

To find the magnitude and direction of the resultant force, we can use the law of cosines and the law of sines:

Magnitude:

Let's call the forces A = 10N and B = 20N. The angle between them is 60 degrees. The magnitude of the resultant force R can be found using the formula:

R² = A² + B² - 2AB cosθ

where θ is the angle between the forces. Substituting the values we get:

R² = (10N)² + (20N)² - 2(10N)(20N) cos(60)

R² = 100N² + 400N² - 200N²

R² = 300N²

Taking the square root of both sides, we get:

R = sqrt(300N²) = 10 sqrt(3) N

Therefore, the magnitude of the resultant force is 10 sqrt(3) N.

Direction:

The direction of the resultant force can be found using the law of sines. Let's call the angle between the resultant force and the 10N force α, and the angle between the resultant force and the 20N force β. Then we have:

sin α / R = sin β / B

Substituting the values we get:

sin α / (10 sqrt(3) N) = sin 60 / 20N

Simplifying, we get:

sin α = (10 sqrt(3) N / 20N) sin 60

sin α = sqrt(3) / 2

Taking the inverse sine of both sides, we get:

α = 60 degrees

Therefore, the direction of the resultant force is 60 degrees from the 10N force

Answer:

A atmospheric composition

Answer:

Crumple Zones are parts of a car that are designed to deform and absorb large amounts of energy from car collisions and impacts. This helps reduce the force that acts on the driver in a car accident [1]. 2: Newton's Second Law states that Force= Mass x Acceleration

Explanation:

If the initial speed was 10 m/s, then a 9.0% increase in speed would result in a 19% increase in distance.

We can see that the increase in distance is proportional to the square of the initial speed, so even a small increase in speed will result in a significant increase in distance.

\(d = (v^2)/2g\)

where d is the distance traveled during the jump, v is the speed of the object or person during the jump, and g is the acceleration due to gravity.

If the speed is increased by 9.0%, then the new speed will be:

\(v_new = v + 0.09v = 1.09v\)

So the new distance traveled during the jump will be:

\(d_new = (v_new^2)/2g = [(1.09v)^2]/2g = 1.19(v^2)/2g\)

The increase in distance is therefore:

\(d = d_new - d = 1.19(v^2)/2g - (v^2)/2g = 0.19(v^2)/2g\)

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Based on the measurements, the maximum height reached by the puck in trial 6 is determined as 5.1 m.

The maximum height reached by the puck is calculated by applying the principle of conservation of energy as shown below;

From the trials, the puck was thrown upwards with initial velocity of 10 m/s and the mass of the puck is given as 400 g.

With these values we can predict the maximum height the puck will reach by applying the principle of conservation of energy.

Potential energy of the puck at maximum height = Kinetic energy of the puck at minimum height

P.E = K.E

mgh = ¹/₂ mv²

h = ¹/₂ (v² / g )

where;

The maximum height reached by the puck is calculated as follows;

h =  ¹/₂ (10² / 9.8 )

h = 5.1 m

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Repeating the experiment multiple times and averaging the results can help reduce measurement errors and improve accuracy.

Acceleration is a physical quantity that describes the rate at which the velocity of an object changes over time. If an object is moving in a straight line, acceleration can be positive or negative depending on whether the object is speeding up or slowing down. If the object is turning or changing direction, acceleration is not only a change in speed but also a change in direction.

The most common formula to calculate acceleration is \(a = (v_f - v_i) / t,\)where "a" is acceleration, "\(v_f\)" is the final velocity of the object, "\(v_i\)" is the initial velocity of the object, and "t" is the time interval during which the velocity changes.

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Answer:

c . they have high boiling points

Answer:

Fred weighs more than bob

Explanation:

For a convex passenger-side mirror the distance from you to the image is  270 cm. distance equal to the object distance is 29.4 m, and 0.0327 m tall. If the mirror were flat the height would be 1.5m. The driver is warned that the objects appear closer because convex mirrors provide a wider field of view but produce smaller images than flat mirrors.

Using the mirror equation

1/f = 1/do + 1/di

where f is the focal length of the mirror, do is the distance of the object from the mirror, and di is the distance of the image from the mirror.

Plugging in f = -80 cm, do = 28 m + 1.4 m = 29.4 m (since the mirror, you, and the cyclist all lie along a line), we get:

1/di = 1/f - 1/do

1/di = -0.0125 cm⁻¹

di = -80 cm / (-0.0125 cm⁻¹) = 640 cm

So, the distance from you to the image of the cyclist is 640 cm - 1.4 m = 270 cm.

If the mirror were flat, then the image would be formed at a distance equal to the object distance, so

Lf = do = 29.4 m

Using the magnification equation

m = -di/do

where m is the magnification of the image.

Plugging in di = 640 cm and do = 29.4 m, we get:

m = -0.0218

Using the formula for image height

h' = -m × h

where h is the height of the object.

Plugging in h = 1.5 m, we get:

h' = -(-0.0218) × 1.5 m = 0.0327 m

So, the image height is 0.0327 m.

If the mirror were flat, then the magnification would be 1, so:

h'f = h × |m| = 1.5 m × 1 = 1.5 m

So, the image height would be 1.5 m.

The mirror on the passenger side of the car is often convex to provide a wider field of view for the driver. However, a convex mirror also makes objects appear smaller than they actually are, and farther away than they actually are.

This is why the warning label is necessary, to prevent the driver from misjudging the distance between their car and objects in the mirror, which could lead to accidents.

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The image of the cyclist would be 58.6 cm away from you in the convex mirror and 29.4 m away in a flat mirror. The height of the cyclist image would be 4.34 cm in the convex mirror and 1.5 m in a flat mirror. The warning label on the passenger-side mirror is to notify the driver that objects may appear further away due to the distorted perspective of the convex mirror.

Part A:
The mirror formula for a convex mirror is 1/f = 1/v + 1/u. Given that f = -80 cm, and object distance(u) is -28m (-2800cm as we need to maintain consistent units).The image distance (v) can be calculated as v = (fu) / (f+u), which gives us v = -81.4 cm.
Considering you are 140 cm from the mirror, the image will form at 140 - 81.4 = 58.6 cm away from you.

Part B:
If the mirror were flat, the image would be the same distance away as the object, but on the other side of the mirror. Therefore, you would be 1.4 m (you to the mirror) + 28 m (mirror to the cyclist) = 29.4 m away.

Part C:
The magnification (m) can be calculated as m = -v/u = 0.029. Since the cyclist is 1.5m tall (150 cm), the height of the image would be m*object height  = 0.029 * 150cm = 4.34 cm.

Part D:
If the mirror were flat, the image height would be the same as the object height. So it would be 1.5 m.

Part E:
The passenger-side mirror is convex to give a larger field of view, but this distorts sizes and distances. Objects seem smaller and further away than they really are, hence the warning for the driver to prevent any potential accident.

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