A length of wire is cut into 7 equal pieces. The 7 pieces are then connected parallel, with the resulting resistance being 1 Ω. What was the resistance r of the original length of wire? Answer in units of Ω. q30

All for the sattement A, B, and E is True and satement C, D, and F is False where you learned about astronomy from space.

A .The Compton, Chandra and Spitzer telescopes are all examples of space telescopes.

-This statement is True.

B. Most types of electromagnetic waves are not visible to ground-based telescopes.

-This statement is True.

C. Enough infrared energy gets to Earth's surface that infrared telescopes do not need to be put in orbit.

-This statement is False.

D. Cosmic rays are the absolute highest-energy type of electromagnetic wave.

-This statement is False.

E. The Hubble Space Telescope makes observations at all wavelengths.

-This statement is True.

F. Earth's atmosphere has no effect on visible light, so there is no need to place an optical telescope in space.

-This statement is False.

Astronomy is the scientific study of celestial objects and phenomena, including stars, planets, galaxies, and the universe as a whole. Astronomers use various tools and techniques, such as telescopes, spectroscopy, and astrophysics, to observe and understand the properties and behavior of these celestial objects.

Through the study of astronomy, scientists have discovered many fascinating things about the universe, such as the existence of black holes, the age and size of the universe, and the formation and evolution of stars and galaxies. Astronomy has also played a significant role in advancing our understanding of fundamental physics, including the laws of gravity and the behavior of matter and energy at extreme conditions.

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The harmonic number for this standing wave is 9th harmonic. When equal number of nodes and antinodes occur in a close pipe, It result to ninth harmonic.

To determine the harmonic number for a standing wave containing both nodes and antinodes requires us to add one to their collective amount.

Thus when examining a particular example featuring five each of these points resulting in an overall count of ten in conjunction with this principle reveals that this specific instance has a working harmony value equivalenting nine.

Therefore, the harmonic number for this standing wave is 9th harmonic.

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Answer:

PLS PLS PLS mark brainliest

Explanation:

The following are the environmental problems caused by the invasive algae which is known as Lyngbya.

A. It blocks the sunlight from reaching the water, thereby depriving the plants in the water from accessing it. So they won't be able to manufacture their foods and eventually die off.

B. The algae produce offensive odour like rotten egg , which drive people and other organisms away.

C. The algae prevent oxygen from entering the water, and prevent the resident organisms from making use of it, which leads to their death.

D. The algae also give off heat into the chilly spring waters.

In conclusion, the goals of the Crystal River project is to save the living organisms in the river from extinction and to make it a livable environment for them.

Answer:

Object A

Explanation:

Mass of an object= Volume × denstiy

Object having higher density will have greater mass

Next,

According to second law of Newton

Force= mass× acceleration

Force= mass× change is velocity/ time

For an equal amount of time, if change in velocity is equal then object with higher mass will have higher force. Hence, greater density, greater is mass and larger is the force.

The electrostatic forces are the same for all isotopes of carbon, but carbon-14 has the strongest nuclear forces due to the additional neutrons in its nucleus.

All isotopes of carbon have the same number of protons in their nucleus, which determines the electrostatic forces between the positively charged protons and negatively charged electrons. Therefore, the electrostatic forces are the same for all isotopes of carbon.

The strength of nuclear forces depends on the number of protons and neutrons in the nucleus. Generally, the more protons and neutrons an isotope has, the stronger the nuclear forces.

Carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. Carbon-12 has 6 protons and 6 neutrons, carbon-13 has 6 protons and 7 neutrons, and carbon-14 has 6 protons and 8 neutrons.

Therefore, carbon-14 has the strongest nuclear forces because it has the most neutrons in its nucleus. However, it is important to note that the difference in nuclear forces between carbon-12 and carbon-14 is relatively small and not significant in most everyday situations.

In summary, the electrostatic forces are the same for all isotopes of carbon, but carbon-14 has the strongest nuclear forces due to the additional neutrons in its nucleus.

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Answer:

Normal = 33.95N

Friction = 19.6 N

Coefficient of friction = 0.58

Explanation:

We can represent the situation as follows:

First, we need to calculate the normal force. Since the box is not moving perpendicular to the incline, the normal force and the weight in that direction has to be equal, then

Fn = mgcos30

Fn = (4kg)(9.8 m/s²)cos30

Fn = 33.95 N

In the same way, the box won't slide when the force of friction is equal to the parallel component of the weight, so

Ff = mgsin30

Ff = (4kg)(9.8 m/s²)sin(30)

Ff = 19.6 N

Additionally, the friction force is equal to

Ff = μFn

Where μ is the coefficient of friction, so solving for μ and replacing the values, we get:

μ = Ff/Fn

μ = 19.6/33.95

μ = 0.58

Therefore, the answers are:

Normal = 33.95N

Friction = 19.6 N

Coefficient of friction = 0.58

Answer:

nvwngviuvnbowibnoijbdofij

Explanation:

Answer:

60 - 45 = A. 15

Explanation:

Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

60 - 45 = A. 15. Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

A flat or highly polished surface called a plane mirror reflects light or waves to create an image. It is a polished, smooth surface that creates a virtual representation of the actual object.

A plane mirror is a surface on which an image can only be produced by at least two light beams. The intersection of these two beams can occur inside the mirror or appear to occur somewhere behind the mirror.

The image that follows illustrates how an object appears when viewed via a plane mirror.

Therefore, 60 - 45 = A. 15. Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

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The magnitude of the electric force on the charge is 5 N.

The magnitude of force on the charge is calculated as follows;

F = Eq

where;

F = 100 N/C  x 0.05 C

F = 5 N

Thus, the magnitude of the electric force on the charge is 5 N.

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Answer:

5n downward

Explanation:

took the assignment

Answer:

v = 15 [m/s]

Explanation:

To solve this problem we must use the principle of conservation of linear momentum, which tells us that momentum is equal to the product of mass by Velocity.

\(P=m*v\)

where:

P = linear momentum [kg*m/s]

m = mass = 2 [kg]

v = velocity = 15 [m/s]

\(P=2*15\\P=30 [kg*m/s]\)

Since we know that momentum is conserved, that is, all momentum is transferred to the second body, we can determine the velocity of the second body, since the mass is equal to that of the first body.

\(30=2*v\\v = 30/2\\v = 15 [m/s]\)

Answer:

lol the SUN

Explanation:

Answer:

bro SUN just sun giving us heat

Answer:

I dont even know my g

Explanation:

Like i cant even help u

Answer:

c

Explanation:

its c

Answer:

B

Explanation:

Kinetic energy is speed so the one with greater speed has more kinetic energy

Answer:

At \(t = (70 / 3) \; {\rm s}\) (approximately \(23.3 \; {\rm s}\).)

Explanation:

Note that the acceleration of the car between \(t = 0\; {\rm s}\) and \(t = 20\; {\rm s}\) (\(\Delta t = 20\; {\rm s}\)) is constant. Initial velocity of the car was \(v_{0} = 0\; {\rm m\cdot s^{-1}}\), whereas \(v_{1} = 35\; {\rm m\cdot s^{-1}}\) at \(t = 20\; {\rm s}\!\). Hence, at \(t = 20\; {\rm s}\!\!\), this car would have travelled a distance of:

\(\begin{aligned}x &= \frac{(v_{1} - v_{0})\, \Delta t}{2} \\ &= \frac{(35\; {\rm m\cdot s^{-1}} - 0\; {\rm m\cdot s^{-1}}) \times (20\; {\rm s})}{2} \\ &= 350\; {\rm m}\end{aligned}\).

At \(t = 20\; {\rm s}\), the truck would have travelled a distance of \(x = v\, t = 20\; {\rm m\cdot s^{-1}} \times 20\; {\rm s} = 400\; {\rm m}\).

In other words, at \(t = 20\; {\rm s}\), the truck was \(400\; {\rm m} - 350\; {\rm m} = 50\; {\rm m}\) ahead of the car. The velocity of the car is greater than that of the truck by \(35\; {\rm m\cdot s^{-1}} - 20\; {\rm m\cdot s^{-1}} = 15 \; {\rm m\cdot s^{-1}}\). It would take another \((50\; {\rm m}) / (15\; {\rm m\cdot s^{-1}}) = (10/3)\; {\rm s}\) before the car catches up with the truck.

Hence, the car would catch up with the truck at \(t = (20 + (10/3))\; {\rm s} = (70 / 3)\; {\rm s}\).

Answer:

C. balancing the amount of energy that is taken in with the amount of energy that is released by the body

Explanation:

Edge 2021

Physics, Engineering, and Industrial Research, Earth and Space Sciences, and Mathematics are the different areas that can be pursued in the Philippines. Bachelor's, Master's, and Ph.D. degrees are available in these fields.

Engineering is a regulated profession in the Philippines that requires licensure examination for professionals to work in the industry. In contrast, Mathematics and Physics have no licensing requirements.

Employment opportunities vary according to field and degree, with engineers, mathematicians, and physicists being in high demand in research and development, manufacturing, and construction.

RA 9184 is the Philippine government's procurement act that aims to provide clear guidelines and procedures for procurement activities in the public sector. It defines the roles and responsibilities of procurement personnel, specifies the procurement process and requirements, and establishes the accountability mechanisms for public procurement.

In conclusion, obtaining a degree in Physics, Engineering, and Industrial Research, Earth and Space Sciences, or Mathematics can lead to various employment opportunities.

While Engineering is a regulated profession in the Philippines, Mathematics and Physics do not require licensure exams. Additionally, the government has set specific guidelines for procurement activities in the public sector through RA 9184.

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Answer:

\( \infty \infty \)

Answer:

Distance

Explanation:

Because each path you take will have a different distance. Each path will be different, leading to a different distance. Hope this helped :D

Answer:

FloodPlains

Explanation:

The floodplains mix with the dirt in the water in which then makes it brown. You're welcome:)

The floodplain is making the water brown in color.

In conclusion, the floodplain is making the water brown in color.

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Answer:

Explanation:

Force of friction acting on the crate = μ mg

= .4 x 100 x 9.8 = 392 N

Net force acting on the crate = 400 -392 N = 8 N .

acceleration = net force / mass

= 8 N / 100 kg

= .08 m /s²

velocity after 3 s.

v = u + at

= 0 + .08 x 3

= 0.24 m/s .

To determine the magnetic field at point P in the given figure, we can use the Biot-Savart Law.

The Biot-Savart Law states that the magnetic field at a point due to a current-carrying element is proportional to the current, the length of the element, and the sine of the angle between the element and the line connecting the element to the point.

In this case, we have two current-carrying arcs and two radial lines. Let's consider each part separately:

1. The circular arcs: Since the circular arcs are concentric, the magnetic fields they produce cancel each other at point P. Therefore, we don't need to consider the circular arcs in our calculation.

2. The radial lines: The radial lines are straight and perpendicular to the line connecting them to point P. The magnetic field produced by a straight current-carrying wire at a point on the wire is given by the equation:

B = (μ₀ * I) / (2π * r)

where μ₀ is the permeability of free space, I is the current, and r is the distance from the wire to the point.

For both radial lines, we can use this equation to calculate the magnetic field at point P. The contribution from each line will have a magnitude of:

B_line = (μ₀ * I) / (2π * r_line)

Since the two lines are parallel and carry the same current, their magnetic fields add up. Therefore, the total magnetic field at point P is:

B_total = 2 * B_line = 2 * (μ₀ * I) / (2π * r_line)

Finally, we can substitute the given values into the equation to calculate the magnetic field at point P.

Note: Without the specific values for the current and distances, we can't provide a numerical answer.

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Answer:

water pushes against the squid

Answer:

8100 g

Explanation:

8.1 kg × 1000

= 8100 g

Answer:

8,100 Grams

Explanation:

To change Kilograms to Grams, you multiply the mass value by 1000.

So, 8.1kg x 1000 = 8,100g.

Hope this helps!

The speed with which the proton is shot along the perpendicular line to the square is calculated to be 435 × 10⁴ m/s.

Charge on each sphere = 35 n C = 35 × 10⁻⁹ C

Side of each square is given as 8 cm = 0.08 m.

Distance of centre of square from any charge r = √2l/2 = r= √2 × 0.08/ 2

r = 0.02m

The square's centre's electric potential is determined by:

Vc = 4 × (kq/r)

The electric potential at a distant place is V ∞ = 0.

Potential Energy difference between the two point is,

ΔV = Ve - V∞

ΔV = 4×(kq/r)

For the proton to pass through the centre of square the proton must have kinetic energy equal to the potential energy at the centre of the square.

The proton's kinetic energy is K = mv²

where,

m is mass

v is velocity

The proton's potential energy is U = eΔV

where,

ΔV is potential

For the proton to pass through,

K(at ∞) = U(Centre)

1/2 mv² = 4kqe/ r

v = √(8 k q)/( m r)

v = √(8 × 9 × 10⁹ × 55 × 10⁻⁹ × 1.6 × 10⁻¹⁹)/ (1.67 × 10⁻²⁷ × 0.02) m/s = (6336× 10⁸)/0.0334 = 435 × 10⁴ m/s

The question is incomplete. The complete question is 'What minimum initial speed does the proton need to pass through the square of charges?'

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Answer:

Gravity

Explanation:

It is gravity because the sun's gravity pulls all the planets towards itself and keeps the planets in the sun's orbit

Yes there are

Explanation:

Both kind of charges exist. (e≈1.60 x 10^-19 C)

Charge is the intrinsic property of a body, that allows it to have either of two kinds of itself.

Positive elementary charge is

\({x}^{1 +} \)

And negative is

\( {x}^{1 -} \)

There are two types of electric charges in nature, they are positive and negative charges.

What is meant by charge ?

Charge is defined as the intrinsic property of matter, by which it experiences a force, when placed in an electromagnetic field.

Here,

In nature, there are two type of electric charges. They are positive charge and negative charge.

The two charges exists in the nature, because, the positive charge attracts the negative charge.

The earth is actually neutral in nature. If a positive charged body is connected to the earth, the positive charge will be drained to the ground. This can be clearly described that, when the surface of earth becomes positively charged, there occurs a potential difference between the surface and the ground.

As a result, the electrons flows from the ground to the surface. The negative charge and positive charges cancels each other and thus neutralizing the surface.

The same happens when a negative charged body is connected to the surface of earth, the charge will be neutralized by the positive charge.

Hence,

There are two types of electric charges in nature, they are positive and negative charges.

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Answer:

not really, by the time you get to your car it would have already hit you in the head and knock you plum out.

Explanation:

No.

And add me as friend.