in the demonstration which required you to calculate the electric potential difference, the charged ball traveled along a path with a vertical segment, then a horizontal segment, then a diagonal segment. which of the following was true about the potential difference along the horizontal segment?

frame of reference that is not inertial. A non-inertial frame is now defined as a frame that accelerates relative to the underlying inertial reference frame. Newton's law won't be valid.

How does the framework function?

Performance could change depending on the lighting. The Frame automatically modifies the Plasma tvs brightness and contrasting settings after analyzing the lighting conditions in the room and the light level of your content.

What distinguishes a system from a frame?

the hard architecture (bones and condyle) that serves as an animal's body's framework. skeletal system, skeleton, and systema skeletale. system: a collection of organs or bodily parts that function or are anatomically related; "the body contains a system for organs for digestion."

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Answer:

fly apart

Explanation:

gravity holds everything in place by constantly attracting both of the objects

without gravity, the objects would not be attracted anymore. Hence, they fly apart.

Answer:

Linear motion is a one-dimensional motion along a straight line, and can therefore be described mathematically using only one spatial dimension.

Explanation:

Digital filters are important in digital signal processing. FIR and IIR filters are two types of digital filters. The main difference between FIR and IIR filters is that FIR filters are known as non-recursive filters, while IIR filters are recursive filters. In this answer, we will explore more about the differences between FIR and IIR filters.

FIR Filters FIR stands for finite impulse response. FIR filters are also called non-recursive filters. In an FIR filter, the output depends only on the current input and the previous inputs. FIR filters are also known as moving average filters. FIR filters have a linear phase response, which makes them useful in audio and image processing. FIR filters have more stable responses compared to IIR filters, which means they are more predictable.

IIR filters are more efficient than FIR filters because they use feedback loops. IIR filters have nonlinear phase responses, which make them useful in signal processing and control systems. IIR filters are less stable than FIR filters, which means they are less predictable.

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Answer:

392 N

Explanation:

Mass of the ball=40kg

g=9.8m/s^2

Weight(w)=40×9.8

=392N

Answer:

We know that:

Distance between Odysseus and Penelope = 50m

Speed of Odysseus = So = 4m/s

Speed of Penelope = Sp = 6m/s.

Now we want to find the equation of motion for Odysseus.

First, let's find the amount of time that he is moving, we know that when he meets with Penelope, he will stop moving.

Now they weel meet each other when the total distance traveled by both of them is equal to 50m.

Then, recalling that:

Distance = Time*speed.

50m = 4m/s*t + 6m/s*t = 10m/s*t

t = 50m/10m/s = 5s

They will move for 5 seconds.

Now we can write the movement equation for Odysseus as:

p(t) = 4m/s*t + p0 for (0s ≤ t ≤ 5s)

Where p0 is the initial position of Odysseus, and because we can put our coordinate axis where we want, we can define p0 = 0m.

Then the position of Odysseus is:

P(t) = 4m/s*t                    if 0s ≤ t ≤ 5s

P(t) = 4m/s*5s = 20m     if t > 5s.

The second piece says that for t larger than 5 seconds, he will not move (at least for a given amount of time)

The total resistance when generating power of 30 kW is 3 x 10¯⁶ Ω.

We need to know about power to solve this problem. Power is the energy dissipated because of resistance. The magnitude of power is proportional to current and voltage. It can be determined as

P = I . V

where P is power, I is current and V is voltage.

By using Ohm's Law, power also can be calculated using resistance.

P = V² / R

where R is resistance.

From the question above, we know that

P = 30 kW = 30000 W

V = 100 kV = 100000

By substituting the following parameters, we get

P = V² / R

30000 = 100000² . R

R = 30000 / 100000²

R = 3 x 10¯⁶ Ω

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Answer:

Potential energy

Explanation:

goodluck

Answer:

potential energy or gravitational potential energy

Answer:

B Newton's second law

Explanation:

An empty grocery cart is easier to move because there is less mass in an empty cart compared to a full cart. Newton's second law state that an object's acceleration depends on the mass of the object and the force applied.

Answer:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f

1

​

=

v

1

​

+

u

1

​

−20

1

​

=

v

1

​

−

25

1

​

⇒

v

1

​

=−

20

1

​

+

25

1

​

v=100cm

The image will be real, inverted magnified

Explanation:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f

1

​

=

v

1

​

+

u

1

​

−20

1

​

=

v

1

​

−

25

1

​

⇒

v

1

​

=−

20

1

​

+

25

1

​

v=100cm

The image will be real, inverted magnified

Answer:

The generator will work only if the magnetic field associated with the turns of coil change.

here both magnet and coil are stationary with respect to each other so no electromagnetic induction would take place. so no indiced current will be produced.

the student has to introduce some mechanism either to rotate the coil or the magnet

An artwork from The Book of Fixed Stars is seen in the figure.

A man is depicted in the drawing holding a sickle with his left hand and extending his right arm forth. The person is hunched over on his left knee, and above him is inscribed in Arabic calligraphy. There are dots all throughout the artwork with Arabic text that identify specific stars and their brightness as observed by Muslim astronomers.

The monarch of the Turkic Timurid dynasty, which ruled over a large portion of Central Asia in the fifteenth century, received this copy of The Book of Fixed Stars. Individual stars are represented by the dots spread throughout the picture, and the symbols next to the dots denote the stars' varying luminosities,  as observed by Muslim astronomers.

The greatest evidence that intellectual activities in the Muslim world persisted in the era between 1200 and 1450, despite the dissolution of the Abbasid Caliphate, is the sponsorship of scholarship by Turkic dynasties, such as the Timurids.

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Answer:

I thinks it's C...not sure tho

Answer:

False because free-body diagram is a sketch of only the object in question and the forces acting upon it, to scale.

A. Vector B matches the direction of velocity at location 2 (downward)

B. Vector A matches the direction of acceleration at location 2 (upward)

C. Vector B matches the direction of velocity at location 6 (downward)

D. Vector A matches the direction of acceleration at location 6 (upward)

E. Vector A matches the direction of velocity at location 10 (upward)

F. Vector C matches the direction of acceleration at location 10 (zero). At this location, the ball is in freefall, its acceleration is equal to gravity and its velocity is constant, so the acceleration is zero.

Answer:

initial velocity = 26 m/s

initial horizontal velocity = 10.58 m/s

initial vertical velocity = 23.75 m/s

Explanation:

The initial velocity is the given velocity, so:

initial velocity = 26.0 m/s

Then, the horizontal and vertical velocity can be calculated using the trigonometric functions cosine and sine respectively. So:

Therefore, the answers are:

initial velocity = 26 m/s

initial horizontal velocity = 10.58 m/s

initial vertical velocity = 23.75 m/s

The answer to this question is boiling of water. Boiling of water is not a chemical change because it does not involve a change in the chemical composition of the substance. It is simply a physical change, in which the water changes from a liquid to a gas.

The digestion of food is not a chemical change. A chemical change is a process in which one or more substances are changed into one or more new substances with different properties. Examples of chemical changes include combustion, rusting, and baking.
Boiling an egg is a chemical change because the egg undergoes a physical transformation.

The explosion of fireworks is a chemical change because of the reaction that causes the explosion.
The other options - the digestion of food, boiling an egg, and the explosion of fireworks - are all examples of chemical changes, as they involve changes in the chemical composition of the substances involved.

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If a student walks a distance of 3km in 20mins then the student's average speed is 9 km/h.

To calculate the student's average speed, we need to use the formula:

Average Speed = Distance ÷ Time

In this case, the student walked a distance of 3km in 20 minutes.

We need to convert the time to hours since speed is measured in km/h.

20 minutes is 20/60 = 1/3 hours

So, the average speed of the student is:

Average Speed = 3km ÷ (1/3 hours) = 9 km/h

Therefore, the student's average speed is 9 km/h.

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the difference of 10 dB is considered as having 10 times the intensity, so difference of 40 dB means :

=》10 × 10 × 10 × 10

=》10000 times

so the the intensity of one sound is 10000 times the other one.

Waveform shaping is a solution that involves adding a pre-distortion filter to the transmitter circuit. The resulting waveform is narrower and more accurate. For differential signaling systems, pre-emphasis and de-emphasis filters can be used.

The "lonely pulse" waveform is a signal integrity issue caused by reflections and interference in digital communication systems. The waveform appears as a single pulse that is wider and distorted compared to the original pulse.

To solve this problem, waveform shaping can be used, which involves adding a pre-distortion filter to the transmitter circuit. This filter modifies the pulse shape to compensate for the distortion during transmission, resulting in a more accurate pulse shape at the receiver. The resulting waveform is narrower, more accurate, and has reduced overshoot and undershoot.

For a differential signaling system, the technique can be implemented using pre-emphasis and de-emphasis filters at the transmitter and receiver, respectively. The implementation is simple and requires only passive components, such as resistors and capacitors. This technique compensates for frequency-dependent attenuation and distortion and results in a more accurate pulse shape at the receiver.

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Answer: b) - 8.0 \(m/s^{2}\)

Explanation: Acceleration is a vector indicating a rate an object's velocity changes over time:

a = \(\frac{v}{t}\)

and its SI unit is \(m/s^{2}\)

For the minivan to stop, it takes a period of 0.5s:

a = \(\frac{4.0}{0.5}\)

a = 8.0 \(m/s^{2}\)

As a vector, acceleration has magnitude (8\(m/s^{2}\)) and direction. Since it is stopping, the minivan has a direction opposite to the other car, which means acceleration is negative. So: a = \(- 8.0 m/s^{2}\).

Answer:

9.45 kWh

Explanation:

Energy = Power × time

E = 900 W × (1.5 h/day × 7 day)

E = 9450 Wh

E = 9.45 kWh

The internal energy of a system is identified with the random, disordered motion of molecules; the total (internal) energy in a system includes potential and kinetic energy.

The image is real and is found at a distance of 33.33cm.

The term lens is used to describe any refracting surface. We know that a lens could be concave or convex in nature.  Given that fact, we are to find the nature of the image that is formed by the convex lens.

Also;

1/f = 1/u + 1/v

1/v = 1/f - 1/u

f = focal length

u = object distance

v = image distance

1/v = 1/25 - 1/85

1/v = 0.04 - 0.001

v = 33.33cm

The image is real and is found at a distance of 33.33cm.

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The object distance for a magnifying glass is 5.00 cm.

What does the term "focal length" mean?

The distance between the main foci, often referred to as focal points, and the center of a thin lens in the air is known as the focal length.  For a converging lens, the focal length is the distance at which a collimatedlight beam will be condensed into a single point (for instance, a convex  lens).

Calculation of Focus length

The focal length of a lens is the distance traveled from the lens's center to the target where light rays converge to form a focal point. When a lens is focused to infinity, its focal length may be calculated. The relationship between magnifying power and lens focal length is inverse: the magnifying power decreases as the focal length increases.

The focus length is calculated by: 7.50 cm of focal length equals five centimeters of object distance times a three-magnification factor divided by three less one.

Hence, the object distance for a magnifying glass is five centimeters

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Newton's third law states that if an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A.

Let:

A = Hammer

B = Nail

so:

Therefore:

The hammer exerts a force on the nail; the nail exerts a force on the hammer.

Answer:

a. s = 0.96 m

b. s = 2.15 m

Explanation:

a.

The relationship between the linear displacement and the angular displacement is given as follows:

\(s = r\theta\)

where,

s = linear distance covered = ?

r = radius of wheel = (6 in)(0.0254 m/1 in) = 0.1524 m

θ = angular displacement = (1 rev)(2π rad/1 rev) = 2π rad

Therefore,

\(s = (0.1524\ m) 2\pi\)

s = 0.96 m

b.

Assuming, we have to find linear displacement here, as well:

\(s = r\theta\)

where,

s = linear distance covered = ?

r = radius of wheel = (13.5 in)(0.0254 m/1 in) = 0.3429 m

θ = angular displacement = (1 rev)(2π rad/1 rev) = 2π rad

Therefore,

\(s = (0.3429 \ m) 2\pi\)

s = 2.15 m

Answer:

F = 6.12 10⁻¹⁵ N,    a = 3.66 10¹² m / s²

Explanation:

The magnetic force is

            F = q v x B

bold letters indicate vectors, the modulus of this expression is

            F = q v B sin θ

as they indicate that the magnetic field is vertical the proton moves horizontally the angle is 90º

suppose that the energy of the proton is totally kinetic

        E = 5.3 MeV (10⁶ 1.6 10⁻¹⁹J / 1 eV) = 8.48 10⁻¹³ J

       E = K = ½ m v²

       v = \(\sqrt{2E/m}\)\(\sqrt{2 \ 8.48 \ 10^{-13} / 1.67 \ 10^{-27}}\)

       v = \(\sqrt{2 \ 8.48 \ 10^{-13} / 1.67 \ 10^{-27}}\)

       v = \(\sqrt{10.155 \ 10^{14}}\)

       v = 3.19 10⁷ m / s

we calculate

        F = 1.6 10⁻¹⁹  3.19 10⁷  1.2 10⁻³

        F = 6.12 10⁻¹⁵ N

The direction of this out is given by the right hand rule,

thumb in the direction of speed, south to north

fingers extended in the direction of the magnetic field, vertical

the probe points in the direction of the force for a positive charge,  East

To calculate the acceleration we use Newton's second law

        F = ma

        a = F / m

        a = 6.12 10⁻¹⁵ / 1.67 10⁻²⁷

        a = 3.66 10¹² m / s²

the direction of the acceleration is the same as the direction of the force