How far could you speed walk in 10 minutes? Use your speed from the 20m test to calculate the answer.

my speed is 13.63.​

(A) The relationship between current and voltage when resistance is constant represents by graph 2. Option B is correct.

(B) Relationship between current and voltage is direct. Option B is correct.

Resistance is the electric component that regulates the flow of current through the conductors or circuits.

Here,
From ohm's low, we have
Voltage = Current × resistance

As resistance = constant
Voltage ∝ Current

The above expression implies that Voltage becomes directly proportional to the current. So as current increases voltage also increases simultaneously [Option B is correct]. And graph between current and voltage will be a straight line passing through the origin Option B is correct.

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The voltage or potential difference across an electric circuit is directly proportional to the current flowing through the circuit. Thus, the correct options for 1 and 2 are B and B, respectively.

Ohm's law is the description of the relationship between two variables which are current, voltage, and a constant called resistance. The amount of steady current which passes through a large number of materials is directly proportional to the potential difference, or the voltage across the materials or electric circuit.

It can be expressed as: V = IR

where, V is the potential difference across the circuit,

I is the electric current,

and R is the resistance

As voltage is directly proportional to the current. If the voltage is increasing, then the current will also increase and if the voltage decreases then the amount of current through the circuit also decreases.

Therefore, the correct options for 1 and 2 are B and B, respectively.

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In amplifiers, the coupling and bypass capacitors appear to be shorts to ac at the mid band frequencies.

At low frequencies the capacitive reactance, XC, of these capacitors affect the gain and phase shift of signals, so they must be taken into account.

\(\alpha =\frac{1}{2\pi f}\)

At lower f, the internal capacitances have a very high Xc like opens and have no effect on the transistor’s performance. However, as the frequency goes up (at high f), the internal  capacitive reactances go down and they have a significant effect on the transistor’s gain and also it introduces a phase shift; it has the inverse effect to the coupling capacitor.

Miller’s theorem states that C effectively appears as a capacitance from input to ground is as given below-

\(Cin= C(A+1)\)

\(Cout=\frac{CA +C}{\alpha }\)

This shows the effective input and output capacitance.

Critical frequency is given as -

\(\alpha = \lim_{n \to \infty} a_n\)

= 10 log(0.5)

=-3dB

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The interaction of a nonelectrolyte and water differs from the interaction of an electrolyte and water because nonelectrolytes do not conduct current while electrolytes can conduct current.

The solution that does not let the current pass through any state either liquid or molten is called nonelectrolyte.

For example, sugar and alcohol are nonelectrolytes.

On the contrary, electrolytes are those mediums, compounds, or substances that allow electric charges to pass through them.

In this way they conduct electricity.

For example, when an ionic substance dissolved in water forms an ionic solution it let the current pass through such as NaCl, HCl, etc. Sodium chloride dissolves in water forming ions of sodium and chloride ions and making the solution electro conductive.

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The force that results in a material's deformation and subsequent reduction in volume is known as compression stress.

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A car goes through a circular highway ramp while maintaining constant speed. The correct statement is the velocity of the car is zero.

This is defined as the rate of change of distance with time and is a vector quantity which measures both the rate and the direction of the motion.

A car maintaining constant speed means that distance covered is also 0m and the formula for velocity is distance / time.

This therefore means that velocity = 0m / 5s where time can be any digit.

This will result in the velocity being zero which is therefore the reason why it was chosen as the correct choice.

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Answer:

Fluid (d).

Explanation:

When there is fluid, there can't be friction.

Answer: YA i got u!!! got 20/20, so its correct

Explanation:

By lowering its temperature, you can remove energy from matter.

Thermal energy is the energy that is generated by the movement of particles in matter. It is a form of kinetic energy that results from the motion of atoms or molecules in a substance. The faster the particles move, the more thermal energy they have. Thermal energy can be transferred from one substance to another by conduction, convection, or radiation. It is a fundamental aspect of many physical processes, including thermodynamics and heat transfer, and is central to the study of energy and its applications in science and engineering.

As the temperature of a substance decreases, the motion of its molecules and atoms also decreases, which results in a decrease in its thermal energy.

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Normal force: push due to contact with a surface such as the ground. always acts perpendicular to the surface.

The normal force is an everyday force that is felt when a surface pushes against an object that is placed on that surface.

For example, when a book is placed on a table, the normal force keeps the book from falling through the table. Gravity is pulling the book downward, but since the book isn't actually falling, something must be pushing it up. This force is called the normal force. The name 'normal' means perpendicular to the surface.

The normal force arises from the electromagnetic force; specifically, the electrons in the book push against the electrons in the table. Since the electrons don't want to get any closer to each other, the book stays on top of the table.

The normal force is closely related to the friction force. Both are non-conservative forces, which can be seen when a ball bounces. The ball falls; gravity pulls it down, so it speeds up, while air drag somewhat slows the fall.

When the ball hits the ground a huge normal force pushes upwards, making the ball bounce not quite as high as when it started. There is energy lost to changing the shape of the ball, which becomes thermal energy (warming the ball) and sound. The normal force can also be seen as non-conservative in the case of rolling resistance. The deformation of the tire (or wheel) means that energy is being lost to that change of shape.

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The minimum deceleration needed to avoid hitting the fallen tree is 0.42 m/s²

Deceleration is the time period used for acceleration that causes an item to gradually down, even as acceleration is movement in which the velocity of an item changes each second.

Deceleration usually refers to acceleration within the course contrary to the direction of the speed. Deceleration always reduces speed. terrible acceleration, but, is acceleration in the poor direction in the selected coordinate machine.

Deceleration is defined as the rate of trade in speed as the frame actions are far away from its preliminary factor. it's also referred to as negative acceleration as it decreases the rate of the frame to 0. it's by far the ratio of the distinction between the very last speed and initial velocity to the entire time taken.

calculation:-

V = U - 2as

0 = 20 m/s - 2a × 28

48a = 20

a = 20/48

a = 0.42 m/s²

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Answer:

single replacement reaction

the plane is on a average of 100km a hour

Answer:

on average, the plane is traveling at 100km per hour, so i think the rate is 100:1

Explanation:

Answer:

KE = 250 kg/m/s

Explanation:

use the formula: KE = 1/2 m (v^2)

KE = 1/2 (5) (10^2)

KE = (2.5) (100)

KE = 250 kg/m/s

Answer:

The most of the elements in the periodic table are metals. The elements cannot be gases and liquids (Molecules are mainly gases and liquids). Metalloids are few. Examples (Germanium, Arsenic)

approximately 2.093 x 10^(-6) cubic meters (or 2.093 milliliters) of coffee has spilled out of the beaker.To calculate the volume of coffee that has spilled out of the beaker, we can use the concept of thermal expansion. The change in volume is given by the formula ΔV = βVΔT, where β is the coefficient of volume expansion, V is the initial volume, and ΔT is the change in temperature.

First, let's convert the initial volume to cubic meters: V = 0.858 x 10^(-3) m^3.
Next, we calculate the change in temperature: ΔT = 90.6 - 18.2 = 72.4 °C.
The coefficient of volume expansion for water (and coffee) is approximately β = 3.4 x 10^(-4) °C^(-1).
Plugging in these values into the formula, we get:
ΔV = (3.4 x 10^(-4) °C^(-1)) * (0.858 x 10^(-3) m^3) * (72.4 °C) = 2.093 x 10^(-6) m^3.

Therefore, approximately 2.093 x 10^(-6) cubic meters (or 2.093 milliliters) of coffee has spilled out of the beaker.

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v(speed) = wavelenght x frequency

v = 0.579 m x 4 hz = 2.32 m/s

The distance covered by the object is given as,

Plug in the known values,

Thus, the distance covered by the object is 81 m.

1. Astronomical observational patterns are used to determine the history of the universe by studying the light emitted or absorbed by celestial objects. Scientists analyze the patterns in the electromagnetic spectrum, such as the distribution of wavelengths, intensity, and spectral lines, to gather information about the composition, temperature, motion, and evolution of celestial bodies.

Astronomical observational refers to the act of observing celestial objects and phenomena in the field of astronomy. It involves the use of telescopes, detectors, and other instruments to collect data and study various aspects of the universe.

2. Mount Wilson and Mount Palomar Observatories were used to observe and collect data about space due to several reasons. Firstly, the locations of these observatories provide advantages for astronomical observations.

3. The NASA Mission Statement is: "To pioneer the future in space exploration, scientific discovery, and aeronautics research." This mission statement reflects NASA's commitment to advancing human knowledge, technological innovation, and exploration beyond Earth's boundaries. NASA aims to push the boundaries of scientific understanding, develop and test new technologies, explore the cosmos, and inspire the next generation of scientists and engineers.

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The net force acting on the charge Q is in the direction D. The net force is the sum of forces from the two point charges Q+ each.

According to Coulomb's law of force, the electrostatic force between two charges separated by a distance of r is given as follows:

Fq =  k q1 q2 /r²

where, k is a constant.

As per this equation, the electrostatic force between two charges will increase as the magnitude of charge increases and the force decreases as the distance between them increases.

Here, the forces acting on the point charge Q- are the forces from the two Q+ charges. They are of different distances from the charges.  The force in the direction E will be greater here. The net force on -Q is acting in the direction D.

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Answer:

Angle of incidence = Angle of Reflection

34° = Angle of Reflection

So, Angle of Reflection is equal to 34°

hope it helps!

Answer: 56 degrees

Explanation:

The angle of incidence is equal to the angle of reflection, but it is not asking us for the angle of reflection. It is asking us for the angle with the reflected SURFACE. It is 90-34= 56. Look at the pic attached if you need a labelled diagram

Answer:

there is no picture :o?

Explanation:

:oo

Answer:

¢

Explanation:

Given that:

Mass of metal = 12g = 0.012

Density of metal = 4 g/cm³ = 4000kg/m³

Density of oil = 1.5g/cm³ = 1500 kg/m³

Recall : density = mass / volume

Volume of metal, V = mass / density = 0.012/ 4000 = 0.000003

0.000003

T + Density of oil * g * V - (0.012 * 9.8) = 0

T + 1500 * 9.8 * 0.000003 - 0.1176 = 0

T = 0.0441 - 0.1176 = 0

T = 0.1176 - 0.0441

T = 0.0735N

Tension, T

When is the average velocity of an object equal to the instantaneous velocity is C. This is the case only when the velocity is constant.

The instantaneous velocity of an object is equal to the average velocity of an object when the velocity is constant or when the acceleration is zero, this is the case only when the velocity is constant. When an object has a constant velocity, the instantaneous velocity of the object is equivalent to the average velocity of the object. This is true because the velocity of the object remains constant over time.

For example, if an object travels at a speed of 20 meters per second for a time period of 5 seconds, then the instantaneous velocity at the end of the 5 seconds is 20 meters per second, and the average velocity of the object over the 5 seconds is also 20 meters per second. This is because the velocity remained constant throughout the entire time period. Therefore, option c is correct, this is the case only when the velocity is constant.

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S-waves are transverse body waves that cause damage during earthquakes by shearing the material they pass through. They move perpendicular to the direction of wave propagation, are secondary to P-waves, and cannot travel through fluids.

Seismographs can pick up transverse body waves known as S-waves as they go through the interior of the Earth. This causes the material's particles to vibrate perpendicular to the wave direction, which produces a shearing motion. These waves move perpendicular to the direction of wave propagation. Because S-waves move more slowly than primary waves, which are longitudinal waves that compress and expand the material they pass through, they are also known as secondary waves. Since shear stress cannot exist in fluids, P-waves cannot pass through fluids or solids. This restricts the S-wave detection to regions of the Earth's mantle. The shearing motion brought on by S-waves during an earthquake can significantly stress and strain a building's foundation. leading to collapse or other forms of structural damage.

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Answer:

The finger moves at a changing rate along Line 2.

Explanation: Hope this helped! :p

Answer:

hide sample answer

The finger moves at a changing rate along Line 2.

Explanation:

The magnitude of the electric field at the position of the third particle is 2.52 x 10⁶ N/C, causing it to remain stationary.

Assuming the third particle has a charge of 0, we can use Coulomb's law to find the magnitude of the electric field at the third particle's position due to the other two charges:

E = k * (q1 / r1² + q2 / r2²)

where k is the Coulomb constant, q1 and q2 are the charges of the first two particles, and r1 and r2 are the distances from the third particle to the first two particles.

Since the triangle is equilateral, the distances from the third particle to the first two particles are both 2.0 cm. Plugging in the values:

E = (8.99 x 10⁻⁹ N*m²/C²) * (4.5 x 10⁻⁹ C / (0.02 m)² + 9.0 x 10⁻⁹ C / (0.02 m)²)

E = 2.52 x 10⁶ N/C

So the magnitude of the electric field at the third particle's position is 2.52 x 10⁶ N/C. Since the third particle has a charge of 0, there is no force on it and it will remain stationary.

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Flexible metallic tubing may be utilised as long as it is installed according to the manufacturer's instructions and is not subject to physical harm.

Flexible metal conduit (FMC), also known as flexible metallic tubing (FMT), may be used as long as it is installed in compliance with the manufacturer's instructions and all relevant laws and regulations. Due to its flexibility and ease of installation, FMC is frequently utilised as a wiring enclosure in places where typical rigid conduit may be challenging to install. FMC must not be used in locations where it is susceptible to physical harm, such as those that are impact or vibration-prone or where it could be crushed or abraded. It is not appropriate for all applications. In these situations, it is necessary to employ more robust conduit choices to guarantee the integrity and safety of the electrical wiring system.

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