a pair of point charges with opposite charges move side by side in the same direction with the same velocity. what is the direction of the magnetic force that the lower point charge exerts on the upper one?

Answer:

v = 0.489 m/s

Explanation:

It is given that,

Mass of a box, m = 1.5 kg

The compression in the spring, x = 6.5 cm = 0.065 m

Let the spring constant of the spring is 85 N/m

We need to find the velocity of the box (v) when it hit the spring. It is based on the conservation of energy. The kinetic energy of spring before collision is equal to the spring energy after compression i.e.

\(\dfrac{1}{2}mv^2=\dfrac{1}{2}kx^2\)

\(v=\sqrt{\dfrac{kx^2}{m}} \\\\v=\sqrt{\dfrac{85\times (0.065)^2}{1.5}} \\\\v=0.489\ m/s\)

So, the speed of the box is 0.489 m/s.

Answer:

9.773m/s2

Explanation:

Given,

h=8848m

The value of sea level is 9.08m/s2

So,

Let g′ be the acceleration due to the gravity on the Mount Everest.

g′=g(1−h2h)

=9.8(1−640000017696)

=9.8(1−0.00276)

9.8×0.99724

=9.773m/s2

Thus, the acceleration due to gravity on the top of Mount Everest is =9.773m/s2

Hope it helped!!!

Answer:

D

Explanation:

First, we have to divide 18 by x

Then multiply it by y

And the result is 18

Answer:

1 kilometer= 1000 meters

6.8 kilometers= 6800 meters

Explanation:

Answer:

m = FpCos0 / a

Explanation:

it just is

A box of mass m is pulled at an angle θ by a force Fp along a frictionless surface. The box travels to the right with acceleration a

What is the mass m of the box?

Answer: m = FpCos0/a

Converting units of measurement is a common task when working with scientific or mathematical data. Converting nm to m is relatively simple, as it involves multiplying the value in nm by a specific conversion factor i.e.  1 x 10^-9.

This means that 1 nm is equivalent to 1 x 10^-9 m. To convert a value in nm to m, you simply need to multiply the value by the conversion factor.

For example, if you have a value of 500 nm, you would multiply it by 1 x 10^-9 to get the equivalent value in m. The calculation would look like this:

500 nm x 1 x 10^-9 = 0.0000005 m

Another way to convert nm to m is by using scientific notation. In scientific notation, you write the value in nm as 5 x 10^2 and you multiply it by 1 x 10^-9. The calculation would look like this:

5 x 10^2 x 1 x 10^-9 = 5 x (10^2 x 10^-9) = 5 x 10^-7 = 0.0000005 m

It's important to note that converting nm to m is the same for any value, whether a large or small number. You simply need to multiply the weight by 1 x 10^-9.

In conclusion, converting nm to m is a simple process involving multiplying the nm value by the conversion factor of 1 x 10^-9. This can be done by using a calculator or by writing the value in scientific notation and calculating by hand. It's important to remember that the conversion process is the same for any value, whether a large or small number.

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Atoms have no electric charge because they have an equal number of electrons and protons.

Explanation:

So from this, we can conclude that atoms have no electric charge because they have an equal number of electrons and protons. Option C is correct.

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Answer:

wouldn't they be dead and there's no oxygen in space....right???

Answer:

no gravity and no oxygen

Explanation:

the bird would die of lack of oxygen before they're even able to fly, but they can't fly anyway because there's no gravity so they'd just float

Answer:

highest at top

f=b

e=a=d

c

Explanation:

Answer:7.5 x 10* 14

Explanation:

Answer: I believe the answer is 7.5 x 10^(14)Hz or 7.5E14Hz

Explanation: the formula for frequency is speed of the wave divided by the wavelength

f= c/wavelength

f- frequency

c-speed

(3 x 10^(8)) x (400 x 10^(-9))= 750,000,000,000,000 or 7.5E14 or 7.5 x10^(14)

Explanation:

v=?, u=0, a=?, S=22m.

Using the formula, S=ut+½at²

22={0×5}+(½.a.5²)

22=½.a.5²

a=44/25 = 1.76m/s².

Therefore, net force = work done = ma = 48×1.76 = 84.48N.

therefore, power = work done/time = 84.48/5 = 16.896W.

hope this helps you.

Paul has a very small budget, but he want to do some business job. The channel he could try in his situation is C. Flea Market.

Flea Market is a market where multiple vendors gather to sell their products. Many flea markets offer both new or secondhand goods. Though open-air markets were once the norm, today's flea markets may take place indoors, outdoors, or both. Many people with low budget and want a simple way of selling their goods use this kind of market. They don't need to rent such a permanent place. They also do not need to share their profit from sales to service providers like if they did it in E-commerce.

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The potential energy of the monkey at the given position is 600.9 J.

Potential energy is the energy stored in a body that depends upon the relative position of various parts of the body.

It increases with increase in the height of the object above the ground level.

The potential energy of the monkey is calculated as follows;

P.E = mgh

P.E = mg (L sin43)

where;

Substitute the given parameters and solve potential energy of the monkey

P.E = (16.9)(9.8)( 5.32 x sin 43)

P.E = 600.9 J

Thus, the potential energy of the monkey at the given position is 600.9 J.

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The lowest layer of the atmosphere, the troposphere, is being studied by scientists, and they have discovered "strong evidence" that climate change is changing seasonal temperatures.When specific gases, referred to as greenhouse gases, accumulate in the Earth's atmosphere, the greenhouse effect occurs.

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Some atmospheric gases absorb and re-emit infrared energy from the atmosphere to the ground. The greenhouse effect causes a mean surface temperature that is 33 degrees Celsius higher than it would be otherwise.

A greenhouse gas is a gas that absorbs and emits radiant energy in the thermal infrared spectrum, resulting in the greenhouse effect. Water vapour, carbon dioxide, methane, nitrous oxide, and ozone are the primary greenhouse gases in the Earth's atmosphere.

Greenhouse gases are critical to maintaining a suitable temperature for life on our planet. The heat emitted by the Earth would simply pass outwards from the Earth's surface into space if the natural greenhouse effect did not exist, and the Earth would have an average temperature of about -20°C.

Carbon dioxide, methane, nitrous oxides, and water vapour are examples of greenhouse gases. Scientists have discovered that the warming effect of carbon dioxide aids in the stabilisation of the Earth's atmosphere.

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The maximum and minimum variation between the true and magnetic poles is 180 degrees and 0 degrees respectively.

The poles of the earth are the North and South poles.

The North is taken as the reference point.

The true north is a fixed point on the globe and gives the true North and South poles.

The Magnetic north is the direction that a compass needle points to as it aligns with the Earth's magnetic field and gives the magnetic North and South poles.

The maximum maximum and minimum variation between the true and magnetic poles is 180 degrees and 0 degrees respectively.

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When John reacts to his partner's complaints by cross-complaining, he is manifesting a form of miscommunication known as defensiveness.

Defensiveness is a defensive response that occurs when someone feels attacked or criticized and responds by counter-attacking or shifting the blame onto the other person. Instead of addressing the concerns or complaints raised by his partner, John deflects them by bringing up his own complaints or grievances. This form of communication can escalate conflicts and hinder effective problem-solving and understanding between partners. Complaints are expressions of dissatisfaction or grievances about a particular issue or situation. People may have complaints in various areas of life, such as relationships, work, customer service, or product quality. Complaints are a form of communication used to express discontent or raise concerns in the hopes of seeking resolution or improvement.

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Answer:12.583m/s

Explanation:

\(KE=\frac{1}{2}mv^{2}\)

\(3800=\frac{1}{2}(48)v^{2}\)

\(\frac{3800}{24}=v^{2}\)

\(\sqrt{158.33} = v\\12.583m/s=v\)

Answer:

Explanation:

To find the horizontal component, the x component specifically, use the formula:

\(V_x=Fcos\theta\) and for the vertical component, the y component, use the formula:

\(V_y=Fsin\theta\)

where F is the magnitude of the force and theta is the angle in degrees.

For the x-component:

\(V_x=6cos250\) so

\(V_x=-2.1\) and depending upon whether this is a displacement vector or a velocity vector, the label would be meters/feet or m/s, respectively.

For the y-component:

\(V_y=6sin250\) so

\(V_y=-5.6\)

Answer:

The volume of water displaced by the raft is 0.233 m³

Explanation:

The question relates to Archimedes' principle which states that the buoyant force experienced by an object immersed in a fluid is equal to the weight of (the force of gravity on) the displaced fluid

The given parameters are;

The combined mass of the person and the raft, m = 233 kg

The liquid on which the raft is located = Water

The density of water, \(\rho _{water}\) = 1000 kg/m³

Weight = Mass, m × g

Where;

m = The mass of the object

g = The acceleration due to gravity = 9.8 m/s²

Given that the raft is on the surface of the water (floating), the buoyant force is equal to the combined weight of the person and the raft = 233 kg

The combined weight of the person and the raft, \(W_{combined}\) = 233 kg × 9.8 m/s² = 2,283.4 N

Therefore;

The buoyant force = 2,283.4 N = The weight of the water displaced

The mass of the water displaced, \(m_{water}\), = 2,283.4 N/(9.8 m/s²) = 233 kg

Density = Mass/Volume

The volume of water displaced by the raft = The mass of the water displaced/(The density of the water) = 233 kg/(1,000 kg/m³) = 0.233 m³.

Answer:

the volume displaced by the raft = 0.233 m3

Explanation:

correct for Acellus

An ideal bandpass filter with unit gain and a bandwidth of 200 Hz is applied to the input signal g(t) = 8 cos(400πt) cos(200,000πt) + 18 cos(200,000nt). The center frequency of the filter is 100,200 Hz. We can sketch the amplitude spectrum of the signal at the output of the filter using the following steps:

Step 1: Determine the Fourier transform of the input signal g(t)The Fourier transform of g(t) is given by: G(ω) = π[δ(ω + 2π × 200,000) + δ(ω - 2π × 200,000)] + π/2[δ(ω + 2π × 200) + δ(ω - 2π × 200)]

Step 2: Determine the transfer function of the bandpass filter

The transfer function of the ideal bandpass filter with unit gain and a bandwidth of 200 Hz centered at 100,200 Hz is given by: H(ω) = {1 for |ω - 2π × 100,200| < π × 100, and 0 otherwise}

Step 3: Multiply the Fourier transform of the input signal by the transfer function of the filter

The output of the filter is given by:

Y(ω) = G(ω)H(ω)The product of the Fourier transform of the input signal and the transfer function of the filter is shown in the figure below.

The given signal is a combination of two cosines, where the first cosine has a frequency of 400π radians/second and the second cosine has a frequency of 200,000π radians/second.

The output of the filter is a bandpass signal with a center frequency of 100,200 Hz and a bandwidth of 200 Hz. The amplitude spectrum of the output signal is zero outside the bandpass region and is equal to the product of the amplitude spectrum of the input signal and the frequency response of the filter within the passband region.

The amplitude spectrum of the output signal is shown in the figure below:

Therefore, the amplitude spectrum of the signal at the output of the filter is a bandpass signal with a center frequency of 100,200 Hz and a bandwidth of 200 Hz. The amplitude of the signal within the passband region is given by the product of the amplitude of the input signal and the frequency response of the filter within the passband region.

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Explanation:

6gtvctyvyvyvyvyfcfufy

The correct answer is(b). There is a physical change from the solid state to a gas state where energy between the molecules increases.

During sublimation, carbon dioxide transitions directly from the solid state (dry ice) to the gas state without passing through the liquid phase. In this process, individual molecules of carbon dioxide gain energy from the surroundings, leading to an increase in their kinetic energy and molecular movement.

As a result, the carbon dioxide molecules separate from each other and form a gas. This phase change is considered a physical change rather than a chemical change since the chemical composition of carbon dioxide remains the same throughout the process.

Therefore, the sublimation of carbon dioxide results in a physical change where the molecules transition from the solid state to the gas state, gaining energy and increasing their molecular movement.

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Answer:

It won't stop

Explanation:

If it is a frictionless surface ....the block will not stop until another force acts on it

Answer:5 hours

Explanation:

300 divided by 20 = 15

300 divided by 15 = 20

the difference is 5

The domain of IT infrastructure that includes cabling, servers, and wireless access points is known as the Network Infrastructure domain. It is the backbone of the IT infrastructure and plays a crucial role in the efficient functioning of an organization's communication.

The Network Infrastructure domain involves the physical and logical connectivity of the various devices, computers, and servers within an organization. This includes the installation and maintenance of cables, such as Ethernet cables, which are used to connect devices to the network. The servers, on the other hand, are used to store and manage the data and applications required by the organization.

Wireless access points, which are also an important component of the Network Infrastructure domain, provide wireless connectivity to the devices within an organization. They are connected to the network using cables and act as a bridge between the wireless devices and the wired network. Wireless access points support the deployment of wireless networks, which are becoming increasingly popular due to the mobility and convenience they provide.

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The gravitational force between the two electrons is approximately 8.23808385 × \(10^{-8}\)N.

The gravitational force between two electrons can be calculated using the equation:

F = (G * m1 * m2) / r²

where F is the gravitational force, G is the gravitational constant (approximately 6.67430 × \(10^{-11}\)N·(m/kg)² ), m1 and m2 are the masses of the two electrons (approximately 9.10938356 × \(10^{-31}\) kg for each electron), and r is the distance between them (\(10^{-10}\) m).

Substituting the values into the equation:

F = (6.67430 × \(10^{-11}\)N·(m/kg)²  * 9.10938356 × \(10^{-31}\) kg * 9.10938356 × \(10^{-31}\) kg) / (\(10^{-10}\) m)²

Simplifying the expression:

F = 8.23808385 × \(10^{-8}\)N

Therefore, the gravitational force that attracts the two electrons is approximately 8.23808385 × \(10^{-8}\) Newtons.

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Is if charge density is doubled, r from the line also needs to be doubled in order for force to remain constant. r = diameter.

Force is defined as the strength or energy directed at an object to cause a physical action or movement. A force is the push or pull that develops as a result of two items interacting. Only when objects interact do they experience force, which is an external force.

The interactions of two (or more) things result in forces. Each applies an equal but opposing power to the other. The object is propelled by external forces. The organism's overall motion is unaffected by an interior force.

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Answer:

2 m/s²

Explanation:

From the question given above, the following data were obtained:

Initial velocity (u) = 2 m/s

Final velocity (v) = 6 m/s

Time (t) = 2 s

Acceleration (a) =?

The acceleration of the person can be obtained as follow:

v = u + at

6 = 2 + (a×2)

6 = 2 + 2a

Collect like terms

6 – 2 = 2a

4 = 2a

Divide both side by 2

a = 4 / 2

a = 2 m/s²

Therefore, the acceleration of the person is 2 m/s²