Sometimes scientists gather information that contradicts accepted theories or explanations. if the new information is replicated many times, the accepted theory that it contradicts will often be updated or modified to reflect the new information. based on this, it can be determined that scientific knowledge is durable in part because a. new information on accepted theories is never discovered. b. experiments are never performed more than once. c. scientists ignore information that contradicts accepted theories. d. it is open to change as new information is learned.

Answer:

D)

inverted and smaller

If you look through a magnifying glass at an object that is more than one focal length away, the image you see will be upright and larger  than the object. Option A is correct.

When light beams from an object reflect off a mirror, they intersect with the picture of that thing, called an image. Real and virtual images are the two sorts of images.

The image characteristic is described by the descriptive words will be;

1. image type.

2. image orientation.

3. image location.

4. image size.

When you gaze at an item via a magnifying glass that is more than one focal length away, the image you perceive is upright and bigger than the object.

Hence,option A is correct.

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The electric field at a distance of 10 cm from the surface of an infinitely long cylindrical shell with a radius of 6.0 cm and a uniform surface charge density of 12 nC/m^2 is approximately 0.81 kN/C.

The electric field outside a uniformly charged cylindrical shell can be determined using Gauss's law. According to Gauss's law, the electric field at a distance r from a cylindrical shell with charge density σ is given by E = σ/(2ε₀), where ε₀ is the permittivity of free space.

In this case, the surface charge density is given as σ = 12 nC/m^2, and we need to find the electric field at a distance r = 10 cm = 0.10 m. Plugging in the values, we get E = (12 nC/m^2)/(2ε₀).

To simplify the expression further, we can rewrite σ as λ/(2πr), where λ is the linear charge density. Therefore, σ = λ/(2πr). Substituting this into the previous equation, we have E = (λ/(2πr))/(2ε₀).

For an infinitely long cylindrical shell, the linear charge density λ is equal to σ multiplied by the circumference of the shell, λ = σ(2πr). Substituting this into the equation for E, we get E = (σ(2πr)/(2πr))/(2ε₀).

Cancelling out the common terms, we have E = σ/(2ε₀). Plugging in the given values, E = (12 nC/m^2)/(2ε₀). Using the value of ε₀ as 8.854 x 10^-12 C^2/(N·m^2), we can calculate E ≈ 0.81 kN/C. Therefore, the electric field at r = 10 cm is approximately 0.81 kN/C.

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The following is the order from smallest volume to largest: open cluster, globular cluster, nebula (Eagle Nebula), stellar neighborhood, star system, galaxy, universe.

The following is the order from smallest volume to largest: open cluster, globular cluster, nebula (Eagle Nebula)stellar neighborhood star system galaxy universe. An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age, distance from Earth, and chemical composition. An example of an open cluster is the Pleiades. A globular cluster is a densely packed group of up to a million stars that are held together by gravity. An example of a globular cluster is Omega Centauri. The Eagle Nebula is a diffuse emission nebula located in the constellation Serpens, approximately 7,000 light-years away from Earth. A stellar neighborhood is a region of space that is populated by a small group of stars that are gravitationally bound to each other. A star system is a collection of two or more stars that are gravitationally bound and orbit around a common center of mass. Our Solar System is an example of a star system.A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. The Milky Way is an example of a galaxy. The universe is the totality of all matter, energy, and space-time, including all the planets, stars, galaxies, and other celestial bodies that exist.

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Answer:

CL2+H2O----------->2HCL+[0]

Answer:

Please provide more information!

Explanation:

Answer:

1.75

Explanation:

The greatest amount of gravitational potential energy at landing site X

To calculate the gravitational potential energy at each landing site, we can use the formula:

Gravitational Potential Energy (PE) = mass × acceleration due to gravity × height above surface

If the mass is assumed to be constant, we can ignore it and focus on the acceleration due to gravity and height above the surface.

From the table, we can see that the lander would have the greatest amount of gravitational potential energy at landing site X, with a value of 592.8 Joules.

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Answer:

11.94

Explanation:

Remark

Find the Potential Energy at the top.

Givens

m = 65 kg

h = 16.2 m

g = 9.81

PE = 65 * 9.81 * 16.2

PE = 10329.93

The tricky part is what do you do about Friction?

Formula

PE = Friction + KE

Solution

PE = 10329.93 Joules

Friction = 5700 Joules

Find the KE

10329.93 = 5700 + KE

KE = 10329.93 - 5700

KE = 4629.93

Find V from the KE formula

KE = 4629.93

m = 65

KE = 1/2 m v^2

KE = 1/2 65 v^2

4629.93 = 1/2 65 v^2

v^2 = 142.46

v = √142.46

v = 11.94

The ball that starts in motion has a momentum of

(0.25 kg) (1.0 m/s) = 0.25 kg•m/s

Note that we take "to the right" to be the positive direction.

The ball that starts at rest has zero momentum.

The total momentum of the system before collision is then

0.25 kg•m/s + 0 = 0.25 kg•m/s

After the collision, the first ball continues moving to the right but has slowed down. Its final momentum is

(0.25 kg) (0.75 m/s) = 0.1875 kg•m/s

Let v be the velocity of the other ball after they collide. Then its momentum after collision would be

(0.15 kg) v

Momentum is conserved throughout the collision, so that

0.25 kg•m/s = 0.1875 kg•m/s + (0.15 kg) v

Solve for v :

0.0625 kg•m/s = (0.15 kg) v

v ≈ 0.42 m/s

Since v has positive sign, the second ball moves at 0.42 m/s to the right.

The average angular acceleration of the figure skater during the time interval of 4.6 s is 0.99 rad/s².

For this question:

Then,

angular acceleration = Change in angular velocity / time

α = ω2 - ω1 / t

α = 7.7 - 3.2 / 4.6

α = 4.5/4.6

α = 0.99 rad/s²

Thus, the average angular acceleration of the figure skater during the time interval of 4.6 s is 0.99 rad/s².

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Answer:

its probably f or h for 4 and 5 is answer location

Answer:

See below

Explanation:

4   H      explains the months with the highest bars for both locales

5    B      as the air rises the water vapor condenses and falls as rain on location B

microphone for example

The force that represents the tension force on the box is A because it is in the direction of the attached rope.

Tension is defined as the force transmitted through a rope, string or wire when pulled by forces acting from opposite sides.

Tension force is described as the pulling force transmitted axially by the means of a string, a rope, chain, or similar object, or by each end of a rod, truss member, or similar three-dimensional object.

For the given diagram, the tension force is the force pulling the box upwards preventing downward motion of the box.

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Answer:

A: The distance light travels in one year

Equation (3) is a true equation for an LR circuit because it represents Kirchhoff's voltage law, which states that the sum of the voltage drops across all elements in a closed loop is equal to the applied voltage.

Equation (8) is a true equation for an LC circuit because it represents Kirchhoff's current law, which states that the sum of the currents entering a node is equal to the sum of the currents leaving the node.

In an LR circuit, equation (3) is true because it represents the balance between the applied voltage (V) and the voltage drops across the inductor (L) and resistor (R) in a closed loop. The voltage drop across the inductor (L) is given by L(di/dt), where di/dt represents the rate of change of current. The voltage drop across the resistor (R) is simply IR, where I is the current flowing through the circuit. Summing these voltage drops gives V = L(di/dt) + IR, which is equation (3).

In an LC circuit, equation (8) is true because it represents the balance of currents at a node. At any given instant, the current flowing into the node splits into two branches: one through the capacitor (C) and the other through the inductor (L). The current through the capacitor is given by C(dv/dt), where dv/dt represents the rate of change of voltage. The current through the inductor is simply IL, where L is the inductance. Summing these currents at the node gives IL + C(dv/dt) = 0, which is equation (8).

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Answer:

Newton's Second Law tells us that the more mass an object has, the more force is needed to move it. A larger rocket will need stronger forces (eg. more fuel) to make it accelerate. The space shuttles required seven pounds of fuel for every pound of payload they carry.

Explanation:

Answer:

B

Explanation:

The impulse experienced by an object is the force•time.

False. Reduction is actually the gain of electrons, usually accompanied by the addition of hydrogen to a molecule or atom. This process is commonly used in organic chemistry to create new molecules with specific properties. During reduction, a molecule or atom gains electrons, and since electrons have a negative charge, the overall charge of the molecule or atom decreases. This is why the process is called reduction.

In organic chemistry, reduction reactions typically involve the use of reducing agents, which are compounds that are capable of donating electrons to other molecules or atoms. Some common reducing agents include lithium aluminum hydride, sodium borohydride, and hydrogen gas. These agents are often used in conjunction with other reagents and solvents to achieve the desired chemical reaction.

Overall, reduction is an important process in chemistry that is used to create new molecules with specific properties. By gaining electrons and hydrogen, molecules and atoms can become more stable and less reactive, making them useful for a wide range of applications. Whether you are studying organic chemistry or simply interested in the basic principles of chemistry, understanding reduction is an essential part of your knowledge base.
False. The statement provided is incorrect. Reduction is actually the process of gaining electrons or adding hydrogen to a molecule or atom, not removing hydrogen or electrons.

In a reduction reaction, a substance undergoes a change in its oxidation state, typically by gaining electrons or hydrogen atoms. This process often occurs in tandem with oxidation, where another substance loses electrons or hydrogen atoms, and the two reactions together are known as a redox (reduction-oxidation) reaction.

In summary, reduction is the process of gaining electrons or adding hydrogen to a molecule or atom, while oxidation involves the loss of electrons or hydrogen atoms.

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Answer:

I'm not that busy solving but I'll tell you the formula that Force x distance is equal to work done

The work is done on a pumpkin when we lift it by 15 m with 24 N is 360 J

Work done is the amount energy gained (loosed) in bringing the body from initial position to final position. It is denoted by W and its SI unit is joule(J).  

i.e. Work(W) is force(F) times displacement(s).

W=F× s

When a body is displaced with 1 newton of force by 1 m, then we can say that work has been done on the body by 1 joule.

Writing for it's dimension,

W=F× s

Force has dimension [L¹ M¹ T²]

Displacement has dimension [L¹]

multiplying both the dimensions Force and Displacement  

we get,

dimension of Work [L² M¹ T²]

According to newton's second law of motion,

Force(F) is mass(M) times acceleration(a).

i.e. F=ma

Given,

Force = 24 N

Displacement = 15 m

W=F.s= 24*15 = 360 J

Hence work done on pumpkin is 360 J

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Answer:

0.25 cm³.

Explanation:

We shall apply Boyle's law to find the solution . According to it

PV = constant where P is pressure and V is volume of the gas.

P₁ V₁ = P₂V₂

1 x .5 = 2 x V₂

V₂ = 0.25 cm³.

It's important to note that the time required for bed accumulation can vary greatly depending on the specific depositional setting and the geological context. Therefore, while thick beds generally suggest longer deposition periods, the exact relationship between bed thickness and time can be influenced by a range of geological factors.

The time required for the accumulation of sedimentary beds, whether thick or thin, can vary depending on various factors. Thick beds generally represent a longer period of sediment deposition compared to thin beds or laminations. This is because thick beds typically result from the continuous or episodic deposition of sediment over an extended period of time, whereas thin beds or laminations may form more rapidly or in a shorter time span.

The formation of thick beds can be influenced by factors such as sediment supply, depositional environment, and sedimentation rates. For example, in environments with high sediment input, such as river deltas or turbidite systems, thick beds may accumulate relatively quickly due to the large volume of sediment being transported and deposited.

On the other hand, thin beds or laminations often result from more rapid or intermittent sedimentation processes. These thinner layers can be associated with processes like periodic flooding events, storm deposition, or the settling of fine-grained sediments in calm environments.

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Answer:

Millimeter, Centimeter, meter, kilometer

Explanation:

K H D M D C M

This is what I say to remember them

Kick Him Down Mommy Don't Commit Murder

Answer:

C

Explanation:towards Erin

The rope will move towards Erin because, the force between them is unbalanced and the more force is exerted by Erin. Hence, the displacement will occur on the greater force side.

Force is an external agent acting on a body to change its motion or to deform it. The net force acting on the body depends on the direction and magnitude of all  the force acting on it.

If two equal forces acts on the body from the same side they add up together and the net force is their sum. If the forces are acting from the opposite sides, they will cancel each other and is said to be balanced.

Here, two forces from the side is un balanced by a force from the opposite side. Hence, the greater force from Erin will make the rope displaced towards her side. Thus, option C is correct.

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Answer:

To holds the legs apart without rupturing any vein

Explanation:

The purpose of using string to tie the forelegs and hind legs during dissection is to hold the legs apart without rupturing ant vein or artillery for easy dissection procedure( the dismembering of the body of a deceased animal or plant to study its anatomical structure)

when tieing the forelegs and the hind legs the same string is used to tie them and the string is then passed/looped under the dissecting table/tray this way the legs will be held apart and the dissection can commence.

Answer:

it will sink because object that have less they float not more

Answer:

it will sink here's why

Explanation: The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in. An object will sink if it is more dense than the liquid it is placed in.

Statement that is true about chemical reaction that forms acid rain : b)The bonds that break are between N and O in HNO2and between O and H in HNO3.

Acid rain is a acid deposition, which refers to the many ways in which acidity can move from atmosphere to Earth's surface. Acid deposition includes acidic rain as well as other forms of acidic wet deposition such as snow, sleet, hail, and fog.

HNO2 is less stable thus dissociates easily to HNO3 + NO + H2O and HNO3 is a strong acid. Therefore, when they react with H2O, they form acid rain.

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Note: The question given on the portal is incomplete. Here is the complete question.

Question: Which two statements are true about this chemical reaction that forms acid rain? 2NO2 + H2O--> HNO2 +HNO3

a) The bonds that form are between N and O in HNO2 between and between O and H in HNO3.

b)The bonds that break are between N and O in HNO2and between O and H in HNO3.

c)The bonds that break are between N and O in NO2 and between O and H in H2O.

d)The bonds that form are between N and O in NO2 and between O and H in H2O.

Answer:  The correct two answers are  :  

1.)  The BONDS that FORM are between N and O in HNO  2   and between O and H in HNO 3

2.)  The BONDS that BREAK are between N and O in NO2 and between H and O in H2O

Explanation:   I took the test.

Answer:

mass: The quantity of matter which a body contains, irrespective of its bulk or volume. It is one of four fundamental properties of matter. It is measured in kilograms in the SI system of measurement.

Explanation:

On the Moon, due to changes the gravity, the cannonball would follow motion of path 4.

This situation can be explained using the mechanics of projectile motion. When an object is propelled from a height, it has 2 components of motion, one in a x-direction and one in a minus y-direction. Let's assume that the cannonball is shot at the same velocity both on Earth and the Moon.

The (-)y component is provided by the gravity of the planet. For, earth, we know that the gravity is much higher than on the Moon. Therefore the ball from the cannon will take a much shorter time to reach the ground than in the case of the moon.

Even without using any mathematical calculations, we can promptly say that the ball would have a longer time of flight in the case of the moon, hence the x-component will be larger than compared to Earth.

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Answer:

Explanation:

Given:

m = 2.0 kg

Wk = 225 J

__________

H - ?

Wp = m*g*H

Wp = Wk

m*g*H = 225

H = 225 / (m*g) = 225 / (2.0*9.8) ≈ 11,5 m

a. Controllable variance of Derr Company if actual total overhead is $980 and budgeted (flexible) overhead at units produced 800 is $180.

b Volume variance is $0.

c. Total overhead variance is $180.

To determine the controllable variance, we can use the formula:

Controllable variance = Actual cost – Budgeted cost (At Actual Units Produced)

= $980 – $800

= $180

To calculate the Volume variance, we can use the formula:

Volume variance = (Standard overhead rate × Actual hours of input) – Standard overhead applied

= ($1.125 × 800) – $900

= $900 – $900

= $0

Therefore, Volume variance is zero.

To calculate the Total overhead variance, we can use the formula:

Total overhead variance = Controllable variance + Volume variance

= $180 + $0

= $180

Therefore, the Controllable variance is $180, Volume variance is $0, and Total overhead variance is $180.

Your question is incomplete, but most probably your full question was

Derr Company reports the following.

Compute (a) controllable variance, (b) volume variance, and (c) total overhead variance.

Actual total overhead $ 980

Budgeted (flexible) overhead at units produced 800

Standard overhead applied 900

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The frequency of the photons must be larger than a certain minimum value in order to eject electrons from the metal" is TRUE because it is known as the threshold frequency and is a characteristic of the metal.

When light of a certain frequency, or color, is shone on a metal, the energy from the photons is transferred to the electrons within the metal. If the frequency is too low, the energy is not sufficient to overcome the binding energy holding the electrons in place.

However, if the frequency is above the threshold frequency, the energy transferred to the electrons is enough to overcome the binding energy and the electrons are ejected from the metal.

This phenomenon is known as the photoelectric effect and is a fundamental principle in modern physics.

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