Which education and qualifications are most helpful for Network Systems careers? Check all that apply.

a high school degree
a bachelor’s degree
physical strength
attention to detail
negotiation skills
problem-solving skills
the ability to learn quickly

Answer: becaue they can burn your body part it i important to tudy chemicals in cloed container

Explanation:

Answer:

There are plenty of reasons why. For some reactions, the system needs to be closed to avoid any alterations to the reaction. It can also be for protection, repeatability, and consistency.

Answer: the gravitational attraction on the Moon is much less than it is here on Earth, and a person weighs less on the Moon.

Explanation:

The distance traveled by the car before it stops when moving with a velocity of 21 m/s is 19.2 m.

Distance is the total length between two points.

To calculate the distance the car move before stopping, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the distance traveled by the car before it stops is 19.2 m.

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Average speed = 3.6km/h

The overall distance the object covers in a given amount of time is its average speed. A scalar value represents the average speed. It has no direction and is indicated by the magnitude.

Calculating the ratio of the body's total distance traveled to the time needed to complete that distance yields the average speed formula. As stated in the average speed equation:

S average =  Total Distance traveled/Total Time taken

A scalar value represents the average speed. The change in position or displacement (x) divided by the time intervals (t) during which the displacement happens is the definition of average velocity. The average velocity is measured in meters per second or M/s.

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Answer: 32 centimeters is 12.5984 inches

Explanation:

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.

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The height has to change by a factor of 1.

We can obtain the height from which the object falls using the equations of kinematics under gravity. We can see that the object was dropped from a height thus u = 0 m/s.

We can the write;

v= √2gh

h1 = v^2/2g

When the final velocity is doubled, we have;

2v= √2gh

h2 =4v^2/2g

h2 = 2v^2/g

The height changes by;

2v^2/g - v^2/2g = v^2/g

Thus the height has to change by a factor of 1.

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state the effect of momentarily touching the conductor with a finger while the charged rod is still near the conductor

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If you have an insulator that's charged up with a negative charge, and you touch a conductor, the negatively charged excess electrons will move to the conductor until the electrons would rather not move anywhere at all. When this happens, we say that the system has reached equilibrium

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-PoliteCat

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The golf ball spends approximately 1.46 seconds in the air before hitting the water. Just before striking the water, its speed is approximately 18.84 m/s.

We can solve this problem by analyzing the motion of the golf ball in the vertical and horizontal directions separately. In the vertical direction, the ball falls a distance of 12.3 m due to gravity. We can use the equation of motion for vertical motion, which is given by:

\(h = (1/2)gt^2\)

where h is the vertical distance, g is the acceleration due to gravity (approximately 9.8 \(m/s^2\)), and t is the time. Rearranging the equation, we can solve for t:

\(t = \sqrt(2h / g) = \sqrt(2 * 12.3 / 9.8)\) ≈ 1.46 s

Therefore, the ball spends approximately 1.46 seconds in the air.

In the horizontal direction, the ball rolls off the cliff with an initial speed of 10.2 m/s. Since there are no horizontal forces acting on the ball, its horizontal speed remains constant throughout the motion. Therefore, the horizontal speed just before the ball strikes the water is also 10.2 m/s.

Combining the vertical and horizontal components of motion, we can find the resultant velocity just before the ball hits the water using the Pythagorean theorem:

\(v = \sqrt(v_{horizontal}^2 + v_{vertical}^2) = \sqrt(10.2^2 + 0)\) ≈ 10.2 m/s

Therefore, the speed of the ball just before it strikes the water is approximately 18.84 m/s.

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Given,

L=100 cm=0.1 m

D=90 cm

B=1 T

I=76 A

B*L=μnI

1 *0.1= 4π*\(10^{-7}\)*n*76

n= 1047

So the turns of solenoid needed is 1047.

A solenoid with infinite length but finite diameter is said to be infinite. In this abstraction, the solenoid is frequently seen as a cylindrical sheet of conductive material. The term "continuous" refers to the fact that the solenoid is not made up of discrete coils with finite widths but rather numerous infinitely thin coils joined together without any gaps. An indefinitely long solenoid has a homogenous magnetic field inside of it that is independent of the cross-sectional area or the distance from the axis. This is a long enough derivation of the magnetic flux density surrounding a solenoid that fringe effects may be disregarded.

In an MRI, the magnetic field B is generated by a solenoid of length 100 cm and diameter of 90 cm. The B field generated is one (1) T. The largest current the wire can carry is 76 A. 1047 turns of solenoid is needed.

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When a person is camping and climbs inside a down sleeping bag to get warm, the type of temperature regulation involved is conduction. Conduction is the process by which heat is transferred from one object to another when they are in contact with each other.

The heat transfer occurs as long as there is a difference in temperature between the two objects. In this case, the body heat of the person inside the sleeping bag is transferred to the sleeping bag by conduction. The down filling of the sleeping bag is a good insulator and helps to trap the heat within the sleeping bag, keeping the person warm.In contrast, convection is the transfer of heat through the movement of fluids, such as air or water. Evaporation is the process by which a liquid changes into a gas, and radiation is the transfer of heat through electromagnetic waves. While all of these processes can play a role in temperature regulation, conduction is the primary mechanism involved when a person climbs inside a down sleeping bag to get warm.

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Answer:

100 ml de una disolucion 05 M de sulfate de vivre

When a fragment of bone containing carbon-14 isotopes of the element carbon is discovered during an archaeological dig, and it is estimated to be approximately 23,000 years old, one can calculate the proportion of the carbon-14 isotopes that remains.

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Answer:

8173.8 km

Explanation:

Fg=G(M*m/r^2)

r=sqrt(G*M*m/Fg)

G=6.6743*10^-11

M(earth)=5.972*10^24kg

M(object)=352kg

Fg=-2100N

r=sqrt((6.6743*10^-11)*(5.972*10^24kg)*(352)/-2100)

r=8173808m

r=8173.8km

According to Newton's calculations, gravity reduces to a fourth of what it was at the surface of the Earth if the distance from the planet's centre is doubled. At the Earth's surface, a satellite with a mass of 1,000 kg exerts a weight force of 9,800 N.

Satellites are pulled toward Earth by its gravity, even when they are hundreds of kilometres distant. The satellite doesn't fall back to Earth; instead, it travels into orbit above it due to gravity and the velocity it acquired during launch into space.

A satellite that is in a steady circular orbit around the Earth is always falling. It encounters a gravitational pull toward the centre of Earth as it orbits, which forces it to shift course and “fall” towards Earth.

Therefore, Since gravity is the only force acting on a satellite in circular orbit, the centripetal force and gravity must be equal: Fc = Fg.

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Infrared telescopes, are able to peer farther into star-forming regions of the galaxy because infrared light is not scattered as strongly as is visible light. The wavelength of light is the scattering only 1.00% that of light with a visible wavelength of 510 nm is 850nm.

An infrared telescope is a telescope that employs infrared light to detect astronomical entities. The electromagnetic spectrum contains many different types of radiation, including infrared light.

All astronomical objects with a temperature above absolute zero emit some sort of electromagnetic radiation. Scientists utilise a variety of telescopes to detect these many forms of electromagnetic radiation that are emitted in order to explore the universe. Some of them are gamma ray, x-ray, ultra-violet, ordinary visible light (optical), as well as infrared telescopes.

A periodic wave's wavelength is its spatial period, or the length over which its shape repeats. It is a property of both travelling waves and standing waves as well as other spatial wave patterns. It is the distance between two consecutive corresponding points of the same phase on the wave, such as two adjacent crests, troughs, or zero crossings. The spatial frequency is the reciprocal of wavelength. The Greek letter lambda (λ) is frequently used to represent wavelength. The term wavelength is also occasionally used to refer to modulated waves, their sinusoidal envelopes, or waves created by the interference of several sinusoids.

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Answer: a

Explanation: :)

The change in enthalpy is  0 J/kg if the incompressible substance with a density of 1000 kg/m3 is isothermally compressed from 100 to 1000 kpa. Thus, option b is correct.

The given data is as follows:

The density of substance = 1000 kg/m3

In-compression pressure = 100 to 1000 kph

The given substance is incompressible. So its specific volume stays constant during the process. The work done is Zero.

Assuming that the process is Isothermal, the temperature remains steady.

The change in enthalpy is calculated by using the formula:

ΔH = m × C × ΔT

The density of mass is calculated by using the formula,

m = V × ρ = 1 m3 × 1000 kg/m3

m = 1000 kg

Change in enthalpy is calculated as:

ΔH = m × C × ΔT

ΔH = 1000 kg × 0 J/(kg·K) × 0 K

ΔH = 0 J/kg

Therefore we can conclude that the change in enthalpy is  0 J/kg.

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The complete question is-

an incompressible substance with a density of 1000 kg/m3 is isothermally compressed from 100 to 1000 kph. determine the change in enthalpy. multiple choice questions.

a.900 kj/kg

b. 0 kj/kg

c.10 kj/kg

d.0.9 kj/kg

The accurately described circuit is option D. In a series circuit, the amount of current passing through each part of the circuit may vary.

In a series circuit, components are connected one after another in a single path, forming a loop. The same current flows through each component in a series circuit, meaning that the current is constant throughout the circuit. This is known as Kirchhoff's current law, which states that the total current entering a junction is equal to the total current leaving the junction.

However, the amount of current passing through each individual component may vary. This is because the components in a series circuit offer different amounts of resistance to the flow of current. According to Ohm's Law, the current in a circuit is determined by the voltage applied and the resistance of the circuit.

Components with higher resistance will restrict the flow of current more, causing a decrease in the amount of current passing through them. Therefore, in a series circuit, the current remains the same at any point in the circuit, but the amount of current passing through each component may vary depending on its resistance. Therefore, the correct answer is option D.

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Answer:

Photosynthesis is the process of using water, carbon dioxide and sunlight to produce sugar. The process of photosynthesis requires specialized cellular structures called chloroplasts to capture energy from the Sun and converted into chemical energy.

Explanation:

Answer:

vaporization

Explanation:

Theres no screen shot here so I can't help.

Answer:

I think the answer is B. Can I have brainlest if I am right, please?

Explanation:

Answer:

it is B because period =1/ frequency and B has lower period

Answer: The period of vibration for both vertical and horizontal motion is 0.9867 s.

Explanation:

The period of a spring-mass oscillator can be calculated using the equation:

T = 2π * √(m/k)

where T is the period of vibration, m is the mass of the object attached to the spring, and k is the spring constant.

a) Vertical Motion:

When the system is vertical, the weight of the mass acts downward and is balanced by the upward force of the spring. The effective force acting on the mass is the force due to gravity, which is equal to the weight of the mass (mg), minus the force exerted by the spring (kx).

At the equilibrium position, the net force is zero, so we have:

mg - kx = 0

Solving for x, we get:

x = mg/k = 10 kg * 9.81 m/s^2 / 20 N/m = 4.905 m

The period of vibration is:

T = 2π * √(m/k) = 2π * √(10 kg / 20 N/m) = 0.9867 s

b) Horizontal Motion:

When the system is horizontal, the weight of the mass acts downward, but the spring force acts horizontally in the opposite direction.

At the equilibrium position, the net force is zero, so we have:

mg = kx

Solving for x, we get:

x = mg/k = 10 kg * 9.81 m/s^2 / 20 N/m = 4.905 m

The period of vibration is:

T = 2π * √(m/k) = 2π * √(10 kg / 20 N/m) = 0.9867 s

Therefore, the period of vibration for both vertical and horizontal motion is 0.9867 s.

Answer: b

Explanation:

Answer:

C.

The More Kinetic Energy being used, the Faster, the Roller Coaster will go.

Explanation:

Hope i helped you :)

The proton of mass 1.67×10⁻²⁷ kg is converted into energy, it yields a total energy of 932MeV.

By using the Einstein mass-energy equivalence, energy is directly proportional to the mass. Energy is obtained from the product of the mass and velocity of the light. The unit of energy in terms of (electron volt) eV.

From the given,

the proton of mass(m) = 1.67×10⁻²⁷ kg

the velocity of light (c)= 3×10⁸ m/s.

mass-energy equivalence

 E = mc²

    = 1.67×10⁻²⁷×3×10⁸×3×10⁸

   = 15.03×10⁻¹¹/1.6×10⁻¹⁹

   = 939MeV.

Thus, the energy yielded by the proton when its mass is converted into energy is 939MeV.

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The impulse imparted to the ball is zero.

To find the impulse imparted to the ball, we need to consider the change in momentum of the ball. The impulse-momentum principle states that the impulse applied to an object is equal to the change in its momentum.

Given:

Angle of deflection (θ) = 45°

Initial speed of the ball (v) = 54 km/h

First, let's convert the speed from km/h to m/s:

54 km/h = 54 * (1000/3600) m/s ≈ 15 m/s

Since the magnitude of the initial velocity remains unchanged, the final speed of the ball after deflection is also 15 m/s.

To determine the impulse imparted to the ball, we need to calculate the change in momentum. The momentum of an object can be calculated using the equation:

Momentum (p) = mass (m) * velocity (v)

However, since the mass of the ball is not given, we cannot directly calculate the change in momentum. Instead, we can use the principle of conservation of momentum.

Assuming there are no external forces acting on the system, the initial momentum of the ball is equal to the final momentum after deflection.

The initial momentum (pinitial) is given by:

pinitial = m * vinitial

The final momentum (pfinal) is given by:

pfinal = m * vfinal

Since the ball deflects at an angle of 45°, the final momentum can be divided into horizontal and vertical components. Since the magnitude of the velocity remains constant, the horizontal and vertical components will have equal magnitudes.

Therefore, the impulse imparted to the ball is the change in momentum along the horizontal direction, which can be calculated using:

Impulse = pfinalx - pinitialx

Since the magnitude of the initial velocity remains unchanged and the angle of deflection is 45°, the horizontal component of the initial momentum (pinitialx) is:

pinitialx = m * vinitial * cos(45°)

Similarly, the horizontal component of the final momentum (pfinalx) is:

pfinalx = m * vfinal * cos(45°)

Since the initial and final speeds are equal, we can simplify the equation to:

Impulse = m * vinitial * cos(45°) - m * vinitial * cos(45°)

Factoring out the common term:

Impulse = m * vinitial * (cos(45°) - cos(45°))

Using the trigonometric identity: cos(45°) = \(\sqrt{(2)/2\)

Impulse = m * vinitial * ( \(\sqrt{(2)/2\) -  \(\sqrt{(2)/2\))

Impulse = m * vinitial * 0

Therefore, the impulse imparted to the ball is zero. This means that there is no change in momentum or velocity along the horizontal direction when the ball is deflected by 45° without changing its initial speed.

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Answer:

Radius 20 m.

Explanation:

Given:

aₙ = 1.4 m/s²

V = 5.3 m/s

___________

R - ?

Centripetal acceleration:

aₙ = V² / R

Radius:

R = V² / aₙ

R = 5.3² / 1.4 ≈ 20 m

Answer:

Explanation:

There are a couple of assumptions I had to make here and also a couple of rules based on what I use in my classroom when I teach the Law of Momentum Conservation. First of all, I am going to call the 8kg ball 1 and say that it is moving to the right (and right is positive), and that means that the 3kg ball is ball 2 and say that it is moving to the left (and left is negative). I had to assume that the 2 balls were moving towards each other; hence, the different signs assigned to their movement. I also added in another significant digit since we have only 1 in most of these values and adding in a .0 is not going to change the value of any number. The Law of Momentum Conservation in this particular instance says

\([m_1v_1+m_2v_2]_b=[m_1v_1+m_2v_2]_a\) which is the mathematical way of saying that the momentum after the collision is the same as the momentum before it. Filling in:

\([(8.0*4.0)+(3.0*-14)]_b=[(8.0*-2.0)+(3.0*v)]_a\) and doing the math here simplifies to

32 - 42 = -16 + 3.0v and

-10 = -16 + 3.0v and

6.0 = 3.0v so

v = 2.0 (and the positive indicates that ball 2 is now moving to the right)

Theta = position angle, t = time, and w = angular velocity, where w = angular velocity, theta = position angle, and t = time. Angular velocity is the rate of change of an object's position angle with respect to time.

Thus, An object's rate of rotation and direction of rotation are both described by its angular velocity.

It is customary for the positive direction to be in the counterclockwise direction. Here are some angular velocity issues for practice. The ratio of the angular displacement () to the time of motion, for a constant angular velocity, is the angular velocity.

Angular velocity only applies to things that are moving in a circular motion, making it less frequent than linear velocity.

A racecar on a circular track, a roulette ball on a wheel, or a Ferris wheel are a few examples of objects with angular motion.

Thus, An object's rate of rotation and direction of rotation are both described by its angular velocity.

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