what would make oppositely charged objects attract each other more?

During a tennis volley, the force pair involved is the action-reaction forces.

When playing tennis and returning a volley, the force pair involved is the action and reaction forces. In the process of hitting the ball, the tennis racket exerts a force on the ball, which is the action force.

The ball, in turn, exerts an equal and opposite force on the racket, which is the reaction force.Both the racket and the ball experience the force of impact during the volley.

The force applied by the racket causes the ball to move forward, while the equal and opposite force applied by the ball pushes the racket back.

These two forces are referred to as action-reaction forces or force pairs. A force pair refers to a pair of forces that are equal in magnitude but opposite in direction.

These forces always act on different objects and occur simultaneously. In this scenario, the action force was exerted by the tennis racket while the reaction force was exerted by the ball.

Therefore, during a tennis volley, the force pair involved is the action-reaction forces.

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The horizontal speed of Tom when it slid off the table is 4.89 m/s.

The time of motion of Tom is the time taken for Tom to fall from the top of he table to ground level.

It can also be described as time spent in air by Tom.

h = ut + ¹/₂gt²

where;

h = 0 + ¹/₂gt²

h = ¹/₂gt²

t = √(2h/g)

t = √(2 x 1 / 9.8)

t = 0.45 s

The horizontal speed of Tom when it slid off the table is calculated as;

v = x/t

where;

v = (2.2 m) / (0.45 s)

v = 4.89 m/s

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Answer:

3.4cm

Explanation:

Divide 34 by 10

Answer:

3.4 :))

Explanation:

The direction of the field causing the deflection is the left.

When a beam of protons moves from the back to the front of a room and is deflected upward by a magnetic field, the direction of the field causing the deflection can be determined using the right-hand rule. According to this rule, if you point your thumb in the direction of the proton's motion (front of the room) and curl your fingers in the direction of the deflection (upward), your palm will face the direction of the magnetic field. In this case, the magnetic field is directed to the left.

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Since the current is inversely propotional to its resistance, when the voltage is doubled the current will be one-half

The frequency, in s⁻¹, of the visible light with a wavelength of 408 nm is 1.22 × 10¹².

Here's how to get that answer:

Wavelength (λ) = 408 nm

Speed of light (c) = 2.998 × 10⁸ m/s

Formula: c = λv, where c is the speed of light, λ is the wavelength, and v is the frequency. To identify the frequency v, rearrange the formula to solve for v:

v = c / λ

Substitute the given values:

v = (2.998 × 10⁸ m/s) / (408 × 10⁻⁹ m)

Convert nm to meters by multiplying by 10⁻⁹:

v = (2.998 × 10⁸ m/s) / (408 × 10⁻⁹ m)

= (2.998 × 10⁸ m/s) / (4.08 × 10⁻⁷ m)

= 7.345 × 10¹⁴ s⁻¹

Round off to 3 significant figures and express in scientific notation: 1.22 × 10¹² s⁻¹

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The calculated average n2 does not agree with the given index of refraction, indicating a potential discrepancy that may be attributed to experimental limitations or errors.

To analyze the agreement between the values for the index of refraction (n2) of glass in each trial, we can observe the trend and variation in the data. From the table, it appears that the values for n2 increase as the angles θ1 and θ2 increase. However, it is difficult to determine the level of agreement between the values without further statistical analysis or calculation of uncertainties.

The conclusion regarding whether the index of refraction is constant for a given medium depends on the level of agreement observed. If the values for n2 in each trial are close to each other and do not deviate significantly, it suggests good agreement and supports the hypothesis of a constant index of refraction.

On the other hand, if there is significant variation and inconsistency among the values, it indicates that the index of refraction may not be constant for the given medium.

To determine the average value of n2 from the provided results, we can calculate the mean of the n2 values:

Average n2 = (1.46 + 1.61 + 1.73 + 1.96 + 2.08 + 2.13) / 6 ≈ 1.85

Comparing the calculated average n2 (1.85) with the given index of refraction of the glass (1.50), we can see that they do not agree. The calculated average n2 is higher than the given value of 1.50. This suggests that there might be some systematic error or uncertainties in the measurements or calculations.

The difference between the calculated and given values could be due to factors such as experimental errors, instrumental limitations, or other sources of uncertainty in the measurement process.

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Complete question is:

Calculate sinθ1, sinθ2 and n2 for each of your results and add them to table 1. Keep your results to 2 or 3 significant figures.

Compare the values for index of refraction of glass for each trial (values in last column). Is there good agreement between them? Would you conclude that index of refraction is a constant for a given medium?

Determine the average value of n2 from your results.

Compare your calculated n2 with the given index of refraction of the glass (1.50). Do they agree? Explain why it does or doesn’t.

Answer:

t = 3.01 s

Explanation:

In order to calculate how long it takes to the object to fall to the ground, you use the following formula, for the calculation of the height:

\(y=y_o-v_ot-\frac{1}{2}gt^2\)    (1)

yo: height of the building = 105 m

vo: initial velocity of the body = 20m/s

g: gravitational acceleration = 9.8m/s^2

t: time = ?

To find the time t, you take into account that when the body arrives to the ground the height is zero, that is, y = 0.

You replace the values of all parameters in the equation (1), and you obtain a quadratic polynomial for t:

\(0=105-20t-\frac{1}{2}(9.8)t^2\\\\0=-4.9t^2-20t+105\)

Next, you use the quadratic formula to get the roots of the polynomial:

\(t_{1,2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\)

a = -4.9

b = -20

c = 105

\(t_{1,2}=\frac{-(-20)\pm\sqrt{(-20)^2-4(-4.9)(105)}}{2(-4.9)}\\\\t_1=3.01s\\\\t_2=-7.09s\)

You choose the positive value t1, because it has physical meanning.

Hence, the body takes 3.01s to arrive to the ground

Two musical strings have the same length and tension, but string A has one fourth the mass of string B. We need to determine the speed of a wave on string A.

The speed of a wave on a string can be calculated using the formula:
v = √(T/μ)

where v is the wave speed, T is the tension, and μ is the linear mass density (mass per unit length).

Since the tension is the same for both strings, we'll focus on the linear mass density. Let μ_A and μ_B represent the linear mass densities of strings A and B, respectively. Given that string A has one fourth the mass of string B, we can write:
μ_ A = (1/4)μ_ B

Now we can find the ratio of the wave speeds on the two strings:
v_ A / v_ B = √(T/μ _A) / √(T/μ _B)

Since the tensions are the same, they cancel out:
v_ A / v_ B = √(1/μ_ A) / √(1/μ_ B)

Now, substitute the relationship between μ_A and μ_B:

v_ A / v_ B = √(1/[(1/4)μ_B]) / √(1/μ_B)
v_ A / v_ B = √(4/μ_B) / √(1/μ_B)

Taking the ratio, we get:

v_ A / v_ B = √4
v_ A = 2v _B

The speed of a wave on string A is twice the speed of a wave on string B.

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Answer:

buildings are made of stone,bricks or embedded into the ground can feel cooler thanks to the high "thermal mass"of this materials.

Answer:

Potential energy is energy that is stored in an object or system. It remains unaffected by the environment outside of the object or system. Kinetic energy is the energy of an object or a system's particles in motion.

Explanation:

Answer:

I believe it is True... I hope it is correct :)

Explanation:

Answer : False

Explanation :

Big has no cause of action against Temper. In this scenario, while Temper may have made a verbal threat and raised his fists in a confrontational manner, there is no indication that he physically touched or harmed Big.

Assault refers to the act of intentionally causing apprehension or fear of imminent harmful or offensive contact. Battery, on the other hand, involves the intentional and harmful or offensive physical contact with another person without their consent.

In this case, Temper's actions may constitute assault due to the verbal threat and raising his fists, creating an atmosphere of fear or apprehension. However, since no physical contact or harm occurred, battery is not applicable. Therefore, the appropriate response is option d: Big has no cause of action against Temper.

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Answer:

59F

Explanation:

Given parameters:

Temperature in °C  = 15°C

Unknown:

Temperature in Fahrenheit scale  = ?

Solution:

To solve this, we use the conversion equation below;

       F  = (C x 1.8)  + 32

C is the temperature in celcius;

    F = (15 x 1.8) + 32  = 59F

Answer:

It depends on 2 factors

the nature of the materials

the normal force.

Explanation:

It depends on 2 factors

the nature of the materials that are in friction and the treatment that they have followed. This factor is expressed by a numerical value called the coefficient of friction or friction.

the force exerted by one body on the other, that is, the normal force.

Autotransformers are especially practical if the difference between the primary and secondary voltages is realtively small.

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In colder weather, people usually wear coats when going outside. Coats keep us warm because of the material of the coat. Our body supplies the heat, and the material helps to trap body heat and keeps the heat from escaping into the air. This is what keeps us warm.

The ability of a measuring instrument to measure what it is supposed to measure is the basic purpose of validity. So, the correct answer is (b) validity.

Validity is a fundamental concept in research and measurement, and it refers to the degree to which a measurement tool accurately measures the construct it is intended to measure.

In contrast, reliability refers to the consistency and stability of the measurement over time.

Sensitivity refers to the ability of a measurement tool to detect small changes in the construct being measured.

Indexing refers to the process of creating an index or composite measure by combining multiple measures or indicators of a construct.

Thus, of the options given, the basic purpose of measuring instrument is to have validity.

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Answer:

In physics, a virtual particle is a transient quantum fluctuation that exhibits some of the characteristics of an ordinary particle, while having its existence limited by the uncertainty principle. The concept of virtual particles arises in perturbation theory of quantum field theory where interactions between ordinary particles are described in terms of exchanges of virtual particles. A process involving virtual particles can be described by a schematic representation known as a Feynman diagram, in which virtual particles are represented by internal lines.

Explanation:

im 15 and i live in the u.s. (not for long tho. moving to Norway cause they got a better economy and support the gay.)

Answer:

We can use the formula for the transformer voltage ratio, which states that the ratio of the number of turns in the primary coil to the number of turns in the secondary coil is equal to the ratio of the output voltage to the input voltage:

Np/Ns = Vp/Vs

where Np is the number of turns in the primary coil, Ns is the number of turns in the secondary coil, Vp is the input voltage, and Vs is the output voltage.

We know that Vp = 220 V and Vs = 140 V, and we are trying to find Ns. We also know that Np = 30, since that is the number of turns in the primary coil. Substituting these values into the formula, we get:

30/Ns = 220/140

Simplifying the right side of the equation, we get:

30/Ns = 11/7

Cross-multiplying, we get:

11Ns = 210

Dividing both sides by 11, we get:

Ns = 19

Therefore, the answer is b.) 19.

Answer: Kinetic energy is the energy an object has because of its motion

(if it needs to be a one worded answer than just type motion)

The potential energy of an object depends on its mass and its height.

The law of conservation of energy states that energy can be neither created nor destroyed, but it can change its form.

Answer:Kinetic energy is the energy an object has because of its motion. If we want to accelerate an object, then we must apply a force. Applying a force requires us to do work.

As expressed by the equation, potential energy depends upon the mass and the height of the object. Any increase in these two quantities will lead to an increase in the amount of potential energy possessed by the object.

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside.

Radial acceleration is inversely related to the radius of the curved pathway and directly proportional to the square of the linear speed. The ratio of the square of the angular speed to the radius of the curved pathway is directly proportional to the radial acceleration.

This is the acceleration of an object moving at speed v within a circle of radius r. Therefore, as you may have experienced while driving a car, centripetal acceleration is greater at high speeds and in acute curves (smaller radii). y.

We can argue that as the radius increases, the centripetal acceleration of the item moving in a circle falls exponentially. Along the radius, the centripetal acceleration's magnitude diminishes.

The centripetal acceleration would be decreased if the radius were decreased while all other factors remained constant, but it would be increased if the speed were increased while all other factors remained constant.

The radius of the circular path is 10m and the acceleration is 1.5g the speed of the rider is 1.82 m/s/s.

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Stars form from molecular clouds through a process known as stellar formation.

These clouds, characterized by low temperatures and high densities, provide the ideal conditions for atoms to combine and form molecules. With a mass range spanning from a few solar masses to millions of solar masses, molecular clouds serve as the birthplaces of new stars. The Pleiades cluster serves as a notable example of stars that have recently formed within such a stellar nursery.

The formation of stars from molecular clouds involves several key steps. Firstly, gravitational forces acting on regions of higher density within the cloud cause them to collapse under their own gravity. As the cloud collapses, it begins to fragment into smaller, denser clumps called protostellar cores. These cores continue to collapse, and their central regions become increasingly dense and hot. At this stage, they are known as protostars.

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Answer:

D. It decreases

Explanation:

Question :-

Answer :-

\( \rule {180pt} {2pt} \)

Given :-

To Find :-

Solution :-

As per the provided information in the given question, we have been given that the Time take by the people to push the car is 3 seconds . The Force required is 200 N . And, we have been asked to calculate the Impulse .

For calculating the Impulse , we will use the Formula :-

Therefore , by Substituting the given values in the above Formula :-

⇒ Impulse = Force × Time

⇒ Impulse = 200 × 3

⇒ Impulse = 600

Hence :-

\( \underline {\rule {180pt} {4pt}} \)

Answer:

I believe that B is the right one.

a) Required chip rateThe processing gain is given by\[G_p = 10{\log _{10}}\left( {{\rm{\Gamma }}{N_{ch}}/{B_c}} \right)\]where Γ is the number of chips per symbol, Nch is the number of hopping channels, and Bc is the chip rate.To determine the chip rate, we must first determine the symbol rate. In this case, the symbol rate is the same as the sampling rate of the PCM modulator, which is 256 × 3.4 kHz = 870.4 kHz.

Since there are Γ chips per symbol, and the processing gain must be at least 23 dB,\[\begin{gathered}

 23{\rm{ dB}} = 10{\log _{10}}\left( {\Gamma {N_{ch}}/{B_c}} \right) \Rightarrow \hfill \\

 10^{23/10} = \Gamma {N_{ch}}/{B_c} \Rightarrow \hfill \\

 {B_c} = \Gamma {N_{ch}}/{{10}^{23/10}} \hfill \\

\end{gathered} \]Let us suppose that we use a pseudo-random sequence of length m = 4. In this case, the number of chips per symbol is given by\[{\Gamma _{DS-SS}} = {2^m} - 1 = 15\]Thus, substituting into the previous equation, we get\[B_c = \left( {15\, \times \,{N_{ch}}} \right)/{6.309}\]Solving for Bc and substituting the processing gain requirement of 23 dB, we get\[B_c \ge 3.194\,{\rm{MHz}}\]Thus, the required chip rate is at least 3.194 MHz.

b) Number of hopping channels if the speech was transmitted by a frequency-hopping spread spectrum (FH-SS) systemThe number of hopping channels can be determined using the relationship\[N_{ch} \le B_c/W\]where W is the frequency range covered by the frequency-hopping sequence. In a FH-SS system, this frequency range must be larger than the baseband bandwidth of the signal, which in this case is 3.4 kHz. If we choose a frequency range of W = 4 kHz, then we get\[N_{ch} \le B_c/W = 3.194/4 = 798.5\]Since Nch must be an integer, we can choose Nch = 798. Therefore, the number of hopping channels is 798.

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Golf cart is moving 8 metre in 1 second

so, in 10 seconds it moves 8 × 10 = 80 m

a) velocity = 80/10 = 8 m/s

b) acceleration = v - u / t

= 8 - 0 / 10

= 0.8 m/s²

c) the displacement of the graph is increasing

I hope this answer is correct and helpful to you