what is the resistance of part a a 2.00 mm long copper wire that is 0.400 mmmm in diameter?

Recycling minerals not only conserves our natural resources but also reduces the amount of waste sent to landfills. It also reduces the energy needed to extract minerals from the earth, as recycled materials require less processing.

In the second paragraph, we can discuss the challenges of recycling minerals. Some minerals are difficult to extract and recycle, while others are found in small quantities and are expensive to recover. There is also the issue of contamination, as recycled materials may contain impurities that can affect the quality of the new product.

In the third paragraph, we can discuss the importance of education and awareness in promoting mineral recycling. Encouraging individuals and businesses to recycle their materials can make a significant impact in prolonging our mineral supply. Governments and organizations can also promote policies and initiatives that support mineral recycling and research new methods of extracting and recycling minerals.

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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

Since the rock is dropped from the top this is a free fall motion. This means that the initial velocity is zero and that we can use the following formulas:

Now, before we can use this formulas we have to do two things:

0. We have to determine what ,we need to find and what we have,. In this case we need to find the height of the cliff, this means that we need to find the change in position of the rock; and we have the initial velocity, the gravitational acceleration and the final velocity (the final speed). ,Hence we can use the third equation,.

1. We need to determine which direction is positive and where is the origin of motion. Since the motion is downward we are going to establish that down in the positive direction of motion; and since we dropped the rock from the top os the cliff this will be our origin of motion. With this in mind we have that g=10 m/s^2, vf=50 m/s and that y0=0.

With this in mind we have that:

Therefore the cliff is 125 meters high.

Answer:

with what subject

Explanation:

i really only do ELA and sometimes science

Answer:

Decreasing the angle to 10

Explanation:

Edge 2020

The first: 1,026m

The second: decreases

The third: 7.9 mya

hope i helped some :))

Answer:

The bottom line

That's because our internal clocks tend to use up the most calories from 4 p.m. to 6 p.m. and the least from 4 a.m. to 6 a.m., researchers concluded. If we're up late and eating when our bodies are using up fewer calories, those calories get stored instead, which can result in weight 

Explanation:

Mark as Brainliest Please, hope that helps

Answer:

The answer is "\(5 \ \frac{m}{s} \ west\)"

Explanation:

\(\to \vec{V_1} = (25 \frac{m}{s}) (\hat{-i})\\\\\to \vec{V_2} = (20 \frac{m}{s}) (\hat{-i})\\\\\)

velocity of car | respect to car :

\(\to \vec{V_{12}} = \vec{V_1} - \vec{V_2}\\\\\)

          \(=\vec{-25} \hat{i}+ \vec{20} \hat{i}\\\\= 5 \ \frac{m}{s} \ west\)

Answer:

70 m/s east

Explanation:

For this ninth planet, astronomers would most likely assume that: it originated in another star system and was gravitationally captured.

A solar system is a collection of both outer and inner planetary (astronomical) bodies alongside the Moon that usually orbit around the Sun, in slightly elliptical orbits.  

Based on astronomical science, there are nine (9) planets in the solar system and these are;

Astronomers would most likely assume that a planet that orbited the Sun in an opposite direction in contrast to the other planets, originated in another star system and was gravitationally captured.

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Veganism is the practice of avoiding using animal products, especially in your diet, and an ideology that supports this practice that rejects treating animals as a commodity.

The end of the film includes interviews with several “elite” athletes. List at least 3 of the benefits of a vegan diet that these elite athletes say they’ve experienced.

A vegan is someone who adheres to the ideology or diet. Numerous health advantages of a vegan diet exist.

A vegan diet can be beneficial for those trying to lose weight. Consuming vegan food may also keep your heart healthy. Additionally, this diet might provide some defense against type 2 diabetes and some malignancies.

Vegan diets typically contain higher levels of fiber, antioxidants, and healthy plant chemicals. Additionally, they seem to contain higher amounts of potassium, magnesium, folate, and vitamins A, C, and E.

Since plant-based meals are bursting with phytochemicals, especially the potent antioxidants found in fruits and vegetables, eating vegan can help lower our risk for disease. Researchers discovered that compared to non-vegans, vegans had higher amounts of saturated fatty acids, a higher proportion of total omega-3 fatty acids, and antioxidant carotenoids, all of which are associated with better health.

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The term cell is incorrect because, the average voltage of a cell is 3.40 V and as already mentioned in question, the volt of source is 18 V, so cell couldn't be the appropriate word, actually the source is battery.

Now, the source is most likely related to cell because a battery which is the source here, is made up of a "group of cell".

The equation demonstrates that momentum is directly related to an object's mass (m) and velocity (v). As a result, an object's momentum increases with increasing mass or velocity.

This is due to the fact that in an elastic collision, the total energy is conserved and the portion attributable to the centre of mass motion is unaffected. After the collision, the magnitude of the relative velocity (relative speed) is the same as it was before the impact (of course, the direction will have changed).

The object with the highest velocity change also has the greatest momentum change since the momentum change is dependent on the velocity change.

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Answer:

H = 1/2 * g * t^2     since initial velocity is zero

v = g * t    where v is the final velocity

t = v / g

H = 1/2 g * v^2 / g^2 = 1/2 v^2 / g

v = (2 * H * g)^1.2

v = (2 * 500 * 9.8)^1/2 = 99 m/s

Check: t = v / g = 99 / 9.8 = 10.1 sec

H = 1/2 * 9.8 * 10.1^2 = 500 m

Answer:

A

Explanation:

If it is loooking for a proper question, it wants to know how fast the mouse was going

Answer: The answer for this is A.

Explanation: I know this cause i'm smart and totally didn't copy the other guy just to get points

Answer:

It is the inability of the body to change by itself its state of rest or uniform motion or direction. Types of Inertia- It is of three types-(1)Inertia of rest (2) Inertia of motion(3) Inertia of direction. (1) Inertia of rest - It is the inability of the body to change by itself its state if rest.

Answer: The width of bands will be 2λ

Explanation: Please see the attachments below

The velocity of the object is  23.24 m/s.

An attribute of an object moving in a circular route is centripetal acceleration. Any object moving in a circle with an acceleration vector pointing in the direction of the circle's center is said to be experiencing centripetal acceleration.

Given that an object is experiencing a centripetal acceleration of 36m/s^2.

Radius of the circle: r = 15 m.

Then, the velocity of the object is = √(36×15) m/s = 23.24 m/s.

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The velocity of the load right after the brake of the lorry is suddenly applied at t = 6 s, is 16.9 m/s.

The velocity of the load is determined from the ratio of the load displacement and time taken.

Mathematically, the formula for displacement is given as;

Displacement = change in displacement / change in time

The displacement of the load at 6 seconds is calculated as;

D = area under the curve

D = (15 s - 6 s ) x (20 m/s - 0 m/s)  +  ¹/₂ (19 s - 15 s ) x (20 m/s - 0 m/s)

D = 180 m  + 40 m

D = 220 m

The velocity of the load;

v = ( 220 m ) / (19 s - 6 s )

v = 16.9 m/s

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Among the options provided, electroweak unification (B) has been directly tested and confirmed through experiments in particle accelerators.

Electroweak unification refers to the combination of the electromagnetic and weak nuclear forces into a single force, known as the electroweak force. This unification was first proposed by Sheldon Glashow, Abdus Salam, and Steven Weinberg, who were later awarded the Nobel Prize in Physics in 1979 for their work.

Experiments at CERN, particularly with the Large Hadron Collider, have provided strong evidence supporting electroweak unification. This includes the discovery of weak bosons (W and Z particles) in the 1980s, which are responsible for mediating the weak nuclear force, and more recently, the discovery of the Higgs boson in 2012, which provides further understanding of how particles acquire mass.

While other unifications like GUT, grand unified force, and superforce are interesting theoretical concepts, they have not been directly tested or confirmed through experiments in particle accelerators to the same extent as electroweak unification.

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By applying Coulomb's law between the charges, the net force on the charged particle q₁ due to particle q₂ and q₃ is -9.86 N.

The distance between the second charge and the third charge is given as;

r = 0.3 m

\(F_{2} = \frac{kq_2q_3}{r^2} \\\\F_{2}= \frac{(8.99\times10^9) (7.7 \times 10^{-6})(5.9\times 10^{-6}) }{0.3^2} \\\\F_2 = 4.54\ N\)

The net force on particle q₁ is determined by summing the individual forces together;

F(net) = F₁ + F₂

F(net) = -14.4 + 4.54

F(net) = -9.86 N

Thus, by applying Coulomb's law between the charges, the net force on the charged particle q₁ due to particle q₂ and q₃ is -9.86 N.

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Answer:

0.25m -14.4

Explanation:

Acellus :)

The statement is false. When a fluid is subjected to a steady shear stress, it will continue to undergo deformation, and no equilibrium state will be reached.

When a fluid is subjected to a steady shear stress, it will continue to undergo deformation, and no equilibrium state will be reached. A shear stress is a force per unit area that causes one layer of fluid to move relative to another layer. In other words, it is a stress that causes deformation of the fluid.

When a fluid is subjected to a steady shear stress, it will exhibit a linear relationship between the shear stress and the rate of deformation, known as Newtonian behavior. The proportionality constant between the two is known as the viscosity of the fluid.

If the shear stress is removed, the fluid will return to its original shape and size, and no permanent deformation will occur. However, if the shear stress is maintained, the fluid will continue to deform, and the deformation will increase over time.

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The change, on its own, that will cause the voltmeter to show a positive reading is Reduce the intensity of light incident on the light-dependent resistor (LDR). Option C

When the intensity of light incident is reduced on the light-dependent resistor  LDR, it will increase its resistance.

This would cause a massive drop in voltage across the LDR.

This will then cause the potential at Y to be lower than that at X. This change alone could result in a positive reading on the voltmeter.

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The speed of the truck is approximately 8.42 m/s. The horizontal force exerted on the truck is approximately 157.64 N.

(a) The work-energy principle relates the work done on an object to its change in kinetic energy. Since the truck starts from rest, the work done on it equals its final kinetic energy:

W = \((1/2)mv^2\)

Solving for v, we get:

v = \(sqrt(2W/m) = sqrt(2(4,335 J)/(2.80 x 10^3 kg)) ≈ 8.42 m/s\)

Therefore, the speed of the truck is approximately 8.42 m/s.

(b) The horizontal force exerted on the truck can be found using the formula for work:

W = Fx

where F is the force exerted on the truck and x is the distance over which the force is applied. Rearranging this equation, we get:

F = W/x = (4,335 J)/(27.5 m) ≈ 157.64 N

Therefore, the horizontal force exerted on the truck is approximately 157.64 N.

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Answer:

The equivalent resistance of the combination is R/100

Explanation:

Parallel Connection of Resistances

If resistances R1, R2, R3,...., Rn are connected in parallel, the equivalent resistance is calculated as follows:

\(\displaystyle \frac{1}{R_e}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}+...+\frac{1}{R_n}\)

The electric resistance of a wire is directly proportional to its length. If a wire of resistance R is cut into 10 equal parts, then each part has a resistance of R/10.

It's known the 10 parts or resistance R/10 were connected in parallel, thus the electric resistance is:

\(\displaystyle \frac{1}{R_e}=\frac{1}{R/10}+\frac{1}{R/10}+\frac{1}{R/10}+...+\frac{1}{R/10}\)

Note the sum consists of 10 equal terms. Operating on each term:

\(\displaystyle \frac{1}{R_e}=\frac{10}{R}+\frac{10}{R}+\frac{10}{R}+...+\frac{10}{R}\)

The sum of 10 identical fractions yields 10 times each fraction:

\(\displaystyle \frac{1}{R_e}=10\frac{10}{R}=\frac{100}{R}\)

Solving for Re needs to take the reciprocal of both sides of the equation:

\(R_e=R/100\)

The equivalent resistance of the combination is R/100

The intensity of the beam is 1.21*10^7  W/m^2 and the intensity is define as number of photons per unit time.

Radiation beam is energy in the form of waves of particles. There are two forms of radiation which are  non-ionizing and ionizing.

Non-ionizing radiation has less energy than ionizing radiation; it does not possess enough energy to produce ions.

Ionizing radiation is capable of knocking electrons out of their orbits around atoms, upsetting the electron/proton balance and giving the atom a positive charge.

Alpha radiation consists of alpha particles that are made up of two protons and two neutrons each and that carry a double positive charge. Due to their relatively large mass and charge, they have an extremely limited ability to penetrate matter.

We know that,

Iabsorbed=P/A ------(1)

where P is the power and A is the area.

P= E/t-------(2)

using (2) and (1)

Iabsorbed=E/tA-----(3)

Now area,

A=πr^2 = 1.19*10^-5 m^2

putting in (3), we get

Iabsorbed = 1.09*10^7 W/m^2

Given only 90% of the beam is absorbed So,

I/100=1.19*10^-5/90

Now the intensity is,

I=1.19*10^-5*100/90

I=1.21*10^7 W/m^2.

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The magnitude of the gain in v/v at the cut-off frequency depends on the transfer function of the system being considered. The cut-off frequency is typically defined .

as the frequency at which the output power of the system is half of the input power, which corresponds to a gain of -3 dB or a magnitude of 0.707 in v/v units. To calculate the gain at the cut-off frequency, one would need to know the transfer function of the system, The cut-off frequency is typically defined . which describes how the system responds to different frequencies. The gain at the cut-off frequency can then be determined by evaluating the transfer function at the cut-off frequency.

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