question 95 which of the following statements accurately defines neuron? a. cells responsible for sending and receiving messages within the nervous system b. stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity c. subatomic particle of about the same mass as a proton but without an electric charge d. stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron

The two drivers will meet at 6:40 pm. Let's assume that the two drivers will meet after time t hours from when the first driver left.

Therefore, the second driver will have been driving for (t-2) hours since he/she left at 5 pm.

Since both drivers will have traveled the same distance when they meet, we can set the distance traveled by the first driver equal to the distance traveled by the second driver:

Distance traveled by first driver = Distance traveled by second driver

40t = 60(t-2)

Solving for t, we get:

t = 4

Therefore, the two drivers will meet 4 hours after the first driver left, which is at 7 pm.

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Answer:

Below

Explanation:

Water that boiled off =   .080 - .071 = .009 kg  = 9 gm

Your question did not state the INITIAL temperature of the water

   THIS answer will assume it was at its boiling point

25200 J / 9 g  =  2800 J / g  = heat of vaporization

Answer:

Explanation:

Given:

m = 2.0 kg

Wk = 225 J

__________

H - ?

Wp = m*g*H

Wp = Wk

m*g*H = 225

H = 225 / (m*g) = 225 / (2.0*9.8) ≈ 11,5 m

The amount of lateral strain in a tension member can be calculated using Poisson's ratio.

To calculate the lateral strain, we can use the equation: ε_lateral = -ν * ε_longitudinal

Where:

ε_lateral = Lateral strain

ν = Poisson's ratio

ε_longitudinal = Longitudinal strain

Poisson's ratio (ν) is a material property that describes the ratio of lateral strain to longitudinal strain when a material is subjected to an axial load. It is defined as the negative ratio of the transverse strain to the longitudinal strain.

Calculating the lateral strain involves determining the longitudinal strain, which can be calculated using the equation:ε_longitudinal = ΔL / L

Where:

ε_longitudinal = Longitudinal strain

ΔL = Change in length of the tension member

L = Original length of the tension member

Once the longitudinal strain is calculated, we can use Poisson's ratio to determine the lateral strain by multiplying the longitudinal strain by the negative value of Poisson's ratio.

It is important to note that the lateral strain is typically very small compared to the longitudinal strain in a tension member, especially for materials with a low Poisson's ratio.

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Your eye as well as the spider's image in the mirror are 1.28 meters apart.

A mirrors is a luminance that reflects light and creates an actual or fictitious picture. An device that returns an image is a reflector or looking glass, which reflects the image of the object when it is positioned in front of it. When focused through an eye or camera lens, light that reflects off a mirror will reveal an image of everything that was in front of it. Mirrors reflect light at an equal but opposite angle, reversing the orientation of the image.

The image distance is equal to the object distance:

Distance between the spider and mirror = 40cm

So, the image is formed 40cm inside the mirror

Distance between the person and mirror = 68cm

Distance between the image and person = 68+40= 128cm

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Answer:

if there isn't a shorting mechanism, the whole sets will be blown out several lamps and then shortened, the overall resistance of the remaining operating lamps will be decreased resulting in an increased working current that is adequate to blast the fuse

Answer: A standard 9V battery has about 400-600 mAh capacity. In the most basic terms, these batteries can supply about 500 milliamps for one hour before being "dead". With electricity, we measure the amount of charge flowing through the circuit over a period of time. Current is measured in Amperes (usually just referred to as "Amps"). An ampere is defined as 6.241*10^18 electrons (1 Coulomb) per second passing through a point in a circuit. In a series circuit, amperage, or amplitude, of the current remains constant and can be calculated using Ohm's law V = I/R while the voltage drops across each resistor that can be summed up to get the total resistance.

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Answer:

potential energy,

Explanation:

Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.

The energy stored on the chemical bonds of molecules is chemical energy. When the chemical bonds are broken, the energy is released.

Chemical energy is a form of energy which is stored in the form of chemical bonds. There are various other forms of energy such as electrical energy, mechanical energy, kinetic energy etc.

There are different types of chemical bonds such as ionic bonds, covalent bonds, metallic bonds etc. Each type of bond are of different bond strength and energy.

Molecules are formed by the combination of atoms through chemical bonding. Chemical energy is stored within the bonds and this energy releases when the bond breaks.

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Answer:

Tectonic movement is the primary cause of earthquake.

Answer:

K.E = 1.13 × 10^5 J

When compared to;

K.E = a.bc X 10^d J

We can observe that;

a = 1

b = 1

c = 3

d = 5

Explanation:

Given;

Mass of rhinoceros m = 1000kg

Velocity v = 15m/s

The kinetic energy of the body at this speed is;

K.E = 0.5×mv^2 ........1

Substituting the values of m and v into equation 1;

K.E = 0.5×1000×15^2

K.E = 112500 J

K.E = 1.13 × 10^5 J

When compared to;

K.E = a.bc X 10^d J

We can observe that;

a = 1

b = 1

c = 3

d = 5

Answer:

This can be explained by the equation Force=Mass x Acceleration. Vehicle 2 has a higher acceleration than Vehicle 1, which means it accelerates quicker. However, this increased acceleration is achieved by a less forceful engine. This is possible because Vehicle 2 has a lower mass than Vehicle 1, meaning the same force applied to Vehicle 2 results in greater acceleration. Therefore, Vehicle 2 has a greater acceleration than Vehicle 1 but has a less forceful engine.

Answer:

9000 Joules

Explanation:

Potential energy = mass x acceleration due to gravity x height

mass = 20kg

acceleration due to gravity = 10m/s2

height = 45 meters

20 x 10 x 45 = 9000 Joules

Answer:

Approximately \(0.043\; {\rm m}\) at equilibrium (assuming that \(g = 9.81\; {\rm N\cdot kg^{-1}}\).)

Explanation:

There are two forces on this rock: the force from the spring, and weight.

Multiply the mass of the rock by \(g\) to find the weight of the rock:

\(\begin{aligned} (\text{weight}) &= m\, g \\ &= (1.2\; {\rm kg})\, (9.81\; {\rm N\cdot kg^{-1}}) \\ &\approx 11.772\; {\rm N} \end{aligned}\).

At equilibrium, magnitude of the force on the rock from the spring would be equal in to that of the weight of the spring: approximately \(11.772\; {\rm N}\).

To find the magnitude of the displacement of the spring, divide the magnitude of the force that the spring exerted by the spring constant:

\(\begin{aligned}& (\text{displacement}) \\ =\; & \frac{(\text{spring force})}{(\text{spring constant})} \\ =\; & \frac{11.772\; {\rm N}}{275\; {\rm N\cdot m^{-1}}} \\ \approx\; & 0.043\; {\rm m}\end{aligned}\).

Answer:

1100 kg

Explanation:

500 lb x 2.20lb (1kg) =1100kg

The magnitude of the relative angle φ with which the ski jumper hits the slope

φ=14.08

This is further explained below.

Generally, the equation for time is mathematically given as

\(t = \frac{(2V tan \theta)}{g} \\\\t = \frac{2 * 24 * tan 59}{9.8}\)

t = 8.152 s

The formula will now provide the slope of the flight path at the time of impact;

tan = V y / V x

V_y = 9.8 * (8.152)

V_y= 78.89 m/s

In conclusion,

\(tan \alpha = \frac{78.89}{24}\)

\(tan \alpha = 3.2871\)

\(\alpha= 73.08°\)

Hence

φ=\(\alpha - \theta\)

=73.08-59

φ=14.08

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The complete question is;

A ski jumper travels down a slope and leaves the ski track moving in the horizontal direction with a speed of 24 m/s. The landing incline below her falls off with a slope of θ = 59◦ . The acceleration of gravity is 9.8 m/s².

What is the magnitude of the relative angle φ with which the ski jumper hits the slope? Answer in units of ◦

The two major space weather effects on space systems that occur frequently during solar minimum are Geomagnetically induced currents  and Cosmic rays.

During the solar minimum, there are two major space weather effects that frequently affect space systems. They include:

1. Geomagnetically induced currents (GICs): These are electrical currents that are generated by the movement of charged particles present in the space environment. They flow through the Earth's surface and can cause power grid disruptions, damage transformers and other electrical systems. The increased occurrence of GICs during solar minimum is due to the slow solar wind, which is less energetic, and therefore the Earth's magnetic field has lower resistance.

2. Cosmic rays: These are high-energy particles that enter the Earth's atmosphere from space. They are a threat to satellites and other electronic equipment in orbit. During the solar minimum, the Earth's magnetic field weakens and allows more cosmic rays to penetrate the atmosphere. This results in increased radiation damage to electronic components of space systems and can lead to data loss and system failures.In conclusion, during the solar minimum, two significant space weather effects that frequently affect space systems include geomagnetically induced currents and cosmic rays.

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Answer:

the answer is true.

Explanation:

hope it will help you

All large telescopes are reflectors since they offer these benefits and are better suited for large telescopes.

Specifically: It is feasible to manufacture telescopes with wider apertures (larger diameter mirrors), which can collect more light and provide higher resolution images, because mirrors can be produced larger than lenses without sagging under their own weight.

Thin metal sheets can be applied to mirrors to improve reflectivity and decrease light loss.

Mirrors can be supported from the back, which increases their rigidity and solves the lens flexure issues that plague refracting telescopes.

Although producing huge lenses to exact specs is more expensive and complex than producing large mirrors, reflectors are typically less expensive to produce than refractors.

Hence, all large telescopes are reflectors since they offer these benefits and are better suited for large telescopes.

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Answer:

It depends...

Explanation:

If you know how much watts the pair of hair straighteners use, you can use that as the energy every second. A normal flat iron for hair would be 300 watts, so we could say that it uses 300 jolts or watts of energy per second.

4.88×10⁻⁵rad is the angular separation θ1 at which two point sources of wavelength 600 nanometers are just resolved when viewed through a circular aperture of diameter 1.5 centimeters.

The angle between two sightlines or between two point objects as seen by an observer is known as angular distance (also called as angular separation, apparent distance, and apparent separation).

All of the natural sciences and mathematics make use of angular distance, particularly geometry and trigonometry.  It appears with angular velocity, angular acceleration and torque in the classical mechanics of spinning objects.

The angular separation is calculated as given below.

θ   =1.220 ×λ/d

  = 1.220 ×600×10⁻⁹/1.5×10⁻²

 =4.88×10⁻⁵rad

Therefore, the angular separation is 4.88×10⁻⁵rad.

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Explanation:

A four-dimensional space is a mathematical extension of the concept of three-dimensional or 3D space. Three-dimensional space is the simplest possible abstraction of the observation that one only needs three numbers, called dimensions, to describe the sizes or locations of objects in the everyday world.

According to the special theory of relativity, the fourth dimension is time. The special theory of relativity, proposed by Albert Einstein in 1905, revolutionized our understanding of space and time.

It states that space and time are interconnected and form a four-dimensional framework known as spacetime. In this framework, three dimensions correspond to space (length, width, and height), and the fourth dimension is time. Einstein's theory introduced the concept of time dilation, which means that time can appear to pass differently for observers in relative motion. This idea challenges the notion of time as an absolute quantity and demonstrates that it is influenced by an observer's relative motion and gravitational fields.

To visualize the fourth dimension, consider a space-time diagram where an object's position in space is plotted against time. Each point on the diagram represents an event, combining its spatial coordinates with the time at which it occurred. This four-dimensional representation allows us to understand the relationship between space and time in a unified framework.

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Answer:

The right solution is "2.5 m/s²". A further explanation is given below.

Explanation:

The given values are:

Initial velocity,

= 20 m/s

Final velocity,

= 0 m/s

Time,

= 8 s

As we know,

⇒  \(Acceleration=\frac{Final \ velocity-Initial \ velocity}{2}\)

On substituting the values, we get

⇒                       \(=\frac{0-20}{8}\)

⇒                       \(=\frac{-20}{8}\)

⇒                       \(=-2.5 \ m/s^2\)

The length of the shortest air column closed at one end that will respond to a tuning fork of frequency 121 Hz can be found using the formula:
L = (v/2f) - d/2

where L is the length of the air column, v is the speed of sound in air (340 m/s), f is the frequency of the tuning fork (121 Hz), and d is the distance between the open end of the air column and the base of the tuning fork (which is assumed to be negligible in this case).

Plugging in the values, we get:

L = (340/2*121) - 0/2
L = 1.4 meters

However, we need to convert this to centimeters, so we multiply by 100:

L = 140 cm

Therefore, the length of the shortest air column closed at one end that will respond to a tuning fork of frequency 121 Hz is approximately 140 cm.

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Answer:

165.529454

Explanation:

According to the Pythagorean Theorem for calculating the lengths of a right angle triangle's sides, a^2 + b+2 = c^2, where c is the longest side (and the side opposing the right angle). So in your case it would be 150*150 + 70*70 = 27400. And √ 27400 is your answer.

Answer:

200

Explanation:

has to be long this us just random words anseer is b. 100

Answer:

32v

Explanation:

edge 2023

Answer:

The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system's mass cannot change, so quantity cannot be added nor removed. Hence, the quantity of mass is conserved over time

Explanation:

The force F1 is equal and opposite to the downward force thus, F1 is equal to 60 N. The force F2 is inclined to 30 ° from leftward force and it is equal to 38.97 N in magnitude.

Force is an external agent acting on a body to deform it or to change its state of motion or rest. Force is a vector quantity and it is characterised by its magnitude and direction.

If two forces acting on a body from the same directions, then the net force will be the sum of these two forces. If they are acting from opposite directions, they will cancel each other in magnitude.

The force F1 is equal and opposite to the force acting downward. Thus its magnitude is 60 N. The force F2 is inclined to 30 ° from horizontal direction.

F2 = 45 cos 30 = 38.9 N.

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