in the equation r (65) = .45, p < .05, what is the obtained value? a. .45 b. 45 c. .65 d. 65

The marine chronometer changed the world by revolutionizing the way people navigated. It allowed ships to accurately measure their longitude, enabling them to determine their exact positions at sea.

This greatly improved the accuracy of navigation and allowed ships to travel farther and more safely. Additionally, the introduction of the marine chronometer allowed for the development of global trade and the exploration of new lands.

The marine chronometer was a revolutionary invention that changed the world by revolutionizing the way people navigated. Prior to its introduction, navigation was an imprecise art that relied on guesswork and educated guesses. However, with the invention of the marine chronometer, ships were now able to accurately measure their longitude and determine their exact positions at sea. This greatly improved the accuracy of navigation and allowed ships to travel farther and more safely.

The impact of the marine chronometer can be seen in the development of global trade and the exploration of new lands. By allowing ships to navigate more precisely, the marine chronometer enabled more efficient trade routes and allowed for new areas to be explored. For example, the marine chronometer played a key role in the exploration of the Pacific Ocean and the discovery of Australia and New Zealand. Additionally, the marine chronometer allowed merchants to expand the scope of their trading activities and the reach of their goods.

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Answer:

Moby

Explanation:

Newton's 2nd Law:  F = ma

a = F/m

Acceleration and mass are inversely proportional.  So if Moby and Tim want to accelerate at the same rate, Moby, with the greater mass, would need more force to accelerate at the same rate as Tim.

The magnitude of the torque on the tip of the catheter containing this permanent magnet is 4.20 x 10-3 Nm and  the potential energy of the system is -0.0104 J.

Given that the magnetic field (B)  = 0.080 T.

The permanent magnet has a magnetic moment of (μ) = 0.14 Am^2.

The angle of orientation of the permanent magnet is (θ) = 22°

(a) Let the magnitude of the torque = τ

We know that τ = μBsinθ  such that

τ = 0.14 x 0.080 x sin22°  = 4.20 x 10-3 Nm

The require torque on the tip of the catheter containing this permanent magnet is 4.20 x 10-3Nm

(b) Let the potential energy of the system be U

We know that U =  -μBcosθ

U = -(0.14 x 0.080 x cos22°) = -0.0104 J

Hence the potential energy of the system consisting of the permanent magnet in the catheter and the magnetic field provided by the external magnets is -0.0104J.

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complete question: A typical magnitude of the external magnetic field in a cardiac catheter ablation procedure using remote magnetic navigation is B = 0.080 T. Suppose that the permanent magnet in the catheter used in the procedure is inside the left atrium of the heart and subject to this external magnetic field. The permanent magnet has a magnetic moment of 0.14 Am^2. The orientation of the permanent magnet is 22° from the direction of the external magnetic field lines.

(a) What is the magnitude of the torque on the tip of the catheter containing this permanent magnet?

(b) What is the potential energy of the system consisting of the permanent magnet in the catheter and the magnetic field provided by the external magnets?

The permanent magnet-containing catheter's tip experienced a torque of 4.20 x 10-3 Nm, and the system's potential energy was -0.0104 J.

Installing a turbocharger or supercharger is a practical alteration that will greatly boost torque. Your engine's power is increased via forced induction, which forces air into the engine. The amount of time a turbocharger has to spool before it benefits torque will depend on the torque curve you choose.

In light of the magnetic field's (B) value of 0.080 T.

The magnetic moment of the permanent magnet is () = 0.14 Am2.

The permanent magnet's orientation angle is () = 22°.

(a) Set the torque's magnitude to.

We are aware that = Bsin, thus

4.20 x 10-3 Nm is equal to = 0.14 x 0.080 x sin22°.

4.20 x 10-3Nm of required torque must be applied to the catheter tip housing this permanent magnet.

(b) Set the system's potential energy to U.

We are aware that U = -Bcos.

U is equal to -(0.14 x 0.080 x cos22°) = -0.0104 J.

In light of this, the potential energy of the system comprised of the catheter's permanent magnet and the magnetic field created by the external magnets is equal to -0.0104J.

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When a heavy boy and a light girl are balanced on a massless seesaw and f they both move forward so that they are one-half their original distance from the pivot point, then : nothing will happen and seesaw will still be balanced.

The principle of moment states that the sum of clockwise moment is equal to the sum of anticlockwise moment.

F₁r₁ = F₂r₂

where; F₁ and F₂ are the forces applied by the boy and the girl respectively

r₁ and r₂ are the position of the boy and the girl respectively

We can conclude that if the boy and the girl were initially at equilibrium, and so, when they move equal distance apart, see-saw will still be balanced. Hence, nothing will happen; seesaw will still be balanced.

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Answer:

false fungi is from deacaying plants or mushooms...

The change in momentum will be  800kg.m/s

We are given that,

Average force = ΔF = 8. 0 x 10²newtons

Average time = Δt 1. 0 x 10-1 second

Change in momentum = Δp =?

The cannonball's impulse J is equal to the cannonball's force multiplied by its duration.

J = FΔt

However, the cannonball's change in momentum is also equal to the impulse can be written as,

J = Δp

If we combine the two equations, we get

FΔt =Δp

Additionally, we can determine the change in momentum because we are aware of the strength of the average force and the time.

FΔt =Δp

Δp = ( 8. 0 x 10³ n)( 1. 0 x 10⁻¹s)

Δp = 800kg.m/s

Therefore, the change in momentum because we are aware of the strength of the average force and the time would be 800kg.m/s .

The complete question is,

A cannonball with a mass of 1.0 kilogram is fired horizontally from a 500.-kilogram cannon, initially at rest, on a horizontal, frictionless surface. The cannonball is acted on by an average force of 8.0 × 10 3 newtons for 1.0 × 10 −1 second. What is the magnitude of the change in momentum of the cannonball during firing?

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There will be an 800 kg/m/s shift in momentum.

It is provided to us,

F = 8.0 x [tex]10^{2}[/tex]newtons is the average force.

Time on average = t1.0 x [tex]10^{-1}[/tex] second

Momentum change is equal to p,

The force of the cannonball times its duration gives rise to the cannonball's impulse J.

J = FΔt

However, the momentum change of the bullet is equally equal to the impulse and may be expressed as,

J = Δp

The result of combining the two equations is

FΔt =Δp

Because we know the average force's magnitude and the passage of time, we can also calculate the change in momentum.

FΔt =Δp

Δp = [tex]\frac{( 8. 0 ( 10^{3}))}{ ( 1. 0 ( 10^{-1}))}[/tex]

Δp = 800kg.m/s

Since we are aware of the strength of the average, the change in momentum will be 800kg.m/s

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The encounter hypothesis was one of the earliest explanations for how planets formed. According to this hypothesis, the Sun was just passed by a renegade star roughly 5 billion years ago.

Planetesimals are the name for these objects. They originate as tiny pieces of solar dust and chondrules that adhere to one another through weak electrostatic forces and gravitational instability.

Georges-Louis Leclerc, a French mathematician, proposed the theory that the planets formed when a comet collided with the Sun and sent massive amounts of material hurling away in the middle of the eighteenth century. He claimed that gravity gradually gathered this stuff to create orbiting worlds.

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One of the earliest theories about how planets formed was the encounter theory. This theory states that the Sun was just passed by a rogue star about 5 billion years ago with high gravity.

These objects are referred to as planetesimals. They begin as minute chondrules and solar dust particles that cling to one another due to weak electrostatic forces and gravity instability. In the middle of the seventeenth century, a French mathematician named Georges-Louis Leclerc put forth the notion that the planets were created when a comet impacted with the Sun and ejected enormous amounts of material into space. He asserted that this material was slowly gathered by gravity to form orbiting worlds.

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Distress is a state of mental or emotional suffering caused by adverse circumstances:

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if a receptor's receptive field is small, it allows for greater specificity of localization.

In biochemistry and pharmacology, a receptor is a molecule of protein that receives chemical signals from outside the cell. When these chemical signals bind to receptors, some form of cellular response occurs, such as changes in the electrical activity of the cell. Receptors are located in the cell membrane, cytoplasm, and nucleus. The signaling molecule attached to a receptor is called a ligand, which can be a peptide or another small molecule such as a neurotransmitter, hormone, drug, or toxin.

Receptors can be classified based on their location. Transmembrane receptors include ion channel-linked receptors (ionotropic receptors), G protein-linked receptors (metabotropic), and receptor tyrosine kinases.[1] Intracellular receptors are found inside the cell (in the cytosol or in the cell nucleus).[1] Molecules that bind naturally to a particular receptor are known as endogenous ligands. For example, the endogenous ligand for the acetylcholine receptor is acetylcholine.

Each receptor is linked by a specific cellular biochemical pathway. Many receptors are found in most cells, and each receptor binds only with a specific structural ligand, much like a lock that accepts a specially shaped key. When a ligand binds to its receptor, it activates a biochemical pathway associated with the receptor.

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The net force acting on the box is  20 N.

The definition of force in physics is: The push or pull on a massed object changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. A spring balance can be used to calculate the Force.

The  boy pushes a box from West to East with a force of 25 N.

The wind exerts a force of 5 N South on the box.

As these two forces acting in opposite direction, the net force acting on the box = 25 N - 5N = 20 N.

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A paper airplane is dropped from a balcony, then the friction from the air  slow down the airplane. As paper plane moves through the air, the air pushes against the airplane, hence slowing it down. This is called drag.

The force that slows the plane down as it pushes against the air it is moving through is called drag. It is a kind of friction and is also called as air resistance.

In fluid dynamics, drag is a force acting opposite to the relative motion of an object moving with respect to the surrounding fluid. Drag is non-existent, without motion.

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Answer:

A,D,B

Explanation:

I think that because the temperature near the equator is higher than other ones so currents close to the equator like A, D and B are most likely to be warm currents

Explanation:

Gravitational and elastic potential energy are both forms of mechanical energy, which is the sum of kinetic energy (the energy of motion) and potential energy (the energy of position or configuration).

Both gravitational and elastic potential energy are stored energy that can be converted into kinetic energy. For example, when a ball is held at a height above the ground, it possesses gravitational potential energy due to its position above the ground. If the ball is then released, it will fall to the ground and its potential energy will be converted into kinetic energy as it gains speed. Similarly, when a spring is compressed or stretched, it possesses elastic potential energy due to the work done to compress or stretch it. If the spring is then released, it will return to its original shape and its potential energy will be converted into kinetic energy as it moves.

Both gravitational and elastic potential energy depend on the mass of the object and the distance it is from a reference point. The greater the mass of the object and the farther it is from the reference point, the more potential energy it has.

Both gravitational and elastic potential energy are measured in joules (J) in the International System of Units (SI).

The magnitude of the splitting for the ion is 97 kJ/mol.

We know that the ligands as we know than can be able to act as point charges and as such they are able to lead to the splitting of the octahedral crystal field and then this would result in the formation of the complex

We know that there is one unpaired electron that is present in the Ti III ion and thus we would have;

Δo = hcv

Δo = crystal feild splitting energy

h = Plank's constant

c = speed of light

v = wave number

Then;

Δo = 6.6 * 10^-34 * 3 * 10^10 * 20300

Δo = 4 * 10^-19 J * 6.02 * 10^23/mol

= 242 kJ/mol

CFSE = -0.4 *  242 kJ/mol

= 97 kJ/mol

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Answer:  1350 m/s

Explanation:

The equation for the speed of a wave: Speed = Wavelength x Frequency

Answer: It is a Scalar quantity

Explanation: This is because scalar quantities have magnitude but no direction

Answer:

3.0210

Explanation:

I Don't Know

Answer:

56.3⁰

Explanation:

∅ = tan⁻¹ (y/x) = tan⁻¹(15/10) = 56.3⁰

An equation that relates and represents the distance that the plane flies at this speed for hours is t=d/610.

The plane flew at a constant speed in one hour,

915/1.5=610

we can write it in the form as:

610t=d

Relative Motion depends on your point of view and position change must be in relation to a reference point

Velocity is speed in a given direction. It is calculated by dividing distance by time also. A measurement of velocity must include a direction in the units Example: Todd's speed was 5 m/s but his velocity was 5 m/s East.

When graphing motion, time is on the x-axis and distance on the y-axis. The faster the motion, the steeper the slope of the straight line. Slope is calculated as the rise (distance on the y-axis) divided by run (distance on the x-axis).

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The distance that the plane covers while traveling at this speed for hours is related to and represented by the equation t=[tex]\frac{d}{610}[/tex].

In an hour, the plane maintained a constant speed,

[tex]\frac{915}{1.5}[/tex]=610

We can format it as follows:

610t=d

Your point of view affects relative motion, and any change in position must be in relation to a reference point.

Speed in a specific direction is known as velocity. In order to calculate it, distance and time are also divided. The units of a velocity measurement must contain a direction. Example: Todd's velocity was 5 m/s East while his speed was 5 m/s.

Time is on the x-axis and distance is on the y-axis when graphing motion. The slope of a straight line increases in steepness with increasing speed. The slope calculated as the rise (distance on the y-axis) divided by run (distance on the x-axis).

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The time it took John Harrison to complete his work on the marine chronometer was 7 years.

Harrison, a self-taught carpenter, and amateur watchmaker accepted the challenge and found a solution. After seven years of hard work, he created his first marine chronometer in 1735 and the first in the world.

Harrison's theory was that instead of traveling based solely on the positions of the stars, one could navigate longitudes by knowing the time. Harrison argued that this distance could be used to calculate longitude by keeping standard time at sea and comparing it to time anywhere in the world.

To achieve this theory, Harrison set to work in 1727 to develop a clock that "remained accurate when tossed and turned on the high seas". Having established himself as a reliable watchmaker, the inventor spent the next seven years developing an all-wood watch called the H1 watch.

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Answer:

NaHCO3 + CaCl2 = CaCO3 + 2NaCl + H2O

Explanation:

It is physically impossible to balance this equation you may be missing another compound

'mg=63 N, h=2R' <br> As 'g (h)=(1)/(9)g' and '(g h)/(g)=((R)/(R+h))2= ((R)/(R+R2))= (1/3)2= (1)/(9)' respectively. if it is subject to the earth's gravitational force pull at a height equal to half the planet's radius.

The term gravitational force refers to the force that the earth exerts on a body. Examples of motion caused by gravitational force include the downward motion of water in a river, the downward motion of water in a stream, and the upward motion of a ball when it is thrown.

Why does gravity have energy?

The energy that an item retains due to its height above the Earth (i.e., whether it is farther away from or nearer to the ground) is known as gravitational energy. It represents potential energy. An object has gravitational energy because of its height above the ground.

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In chemical reactions , by gaining one electron the valence configuration of bromine tend to change.

The elementary electric charge of the electron is a negative one, making it a subatomic particle. Due to their lack of components or substructure, electrons, which are part of the lepton particle family's first generation, are typically regarded to be elementary particles.

There are 7 valence electrons in it. To achieve noble gas configuration, only one additional electron is needed. It will then be known as a bromide ion after receiving one additional electron. In order to create an ion, bromine gains one electron.

Thus, In chemical reactions , by gaining one electron the valence configuration of bromine tend to change.

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(a) The time taken for the bicyclist to catch her friend is 3.3 seconds.

(b) The distance travelled by the bicyclist is 11.98 m.

(c) The speed of the bicyclist when she catches up with her friend is 7.26 m/s.

The time taken for the bicyclist to catch her friend is calculated by applying the principle of relative velocity.

The distance between the bicyclist and her friend 2 seconds later = 4.5 m/s x 2 s = 9 m

( Vc - Vf ) t = d

where;

( at - Vf ) t = d

( 2.2t - 4.5 ) t = 9

2.2t² - 4.5t = 9

2.2t² - 4.5t - 9 = 0

solve the above quadratic equation using formula method.

t = 3.3 seconds

The distance travelled by the cyclist is calculated as follows;

D = ¹/₂at²

D  = ¹/₂ ( 2.2) (3.3²)

D = 11.98 m

The speed of the bicyclist when she catches up with her friend is calculated as;

v = at

v = ( 2.2 ) x 3.3

v = 7.26 m/s

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The first creator of the chronometer at sea which is also called marine chronometer is John Harrison.

John Harrison is a self-educated english man who work as carpenter and clockmaker. He was born at 24 march 1963 and died at 24 march 1776. During his time, there were no any device that can determine the longitude  at the seas until marine chronometer invented. Marine chronometer was invented in 1761 and has a great impact to the sailor. After the invention, Navigator have the ships accurate position on the sea that cause the safety of the long journey in the sea are highly increase.

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Gains speed because Acceleration is defined as the rate of change of velocity, which can be positive (speed increase) or negative (speed decrease). In the case of a motor scooter, when it gains speed.

Measuring the rate at which a moving entity's speed and direction change over time. When a point or thing accelerates / decelerates, it is moving straight forward. Motion on a circle increases even if the speed is constant because the vector is always changing.

A = v/t stands for acceleration, which is the product of the alteration in speed (v) and the shift in time (t) (t). You may use this to figure out the variation in velocity in m/s² (metres per second squared).

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To solve this we must be knowing each and every concept related to work and its calculation.  Therefore, 63.428KJ is the work done by jack in carrying Jill up the hill.

Work definition in Physics is "Energy transfer that happens when an item is moved across a distance with an outside force, at least portion of which is applied along the direction of the displacement".

Mathematically, the formula for work can be calculated as

Work = force × displacement

The values that are given are:

force=971.34 -752.72

       =218.62N

displacement=290.13 m

substituting all the given values in the above equation, we get

Work = 218.62N× 290.13 m

On calculation, we get

Work =63,428.2J=63.428KJ

Therefore, 63.428KJ is the work done by jack in carrying Jill up the hill.

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In the case of the system, the internal energy change can be computed as q – W 77 – 164. We will receive the result minus 87. Here is portion a. The last response, which represents a shift in internal energy, is -87 jewel.

In thermodynamics, internal energy is a property or state function that characterises a substance's energy in the absence of capillary effects and the impacts of external magnetic, electric, and other fields.

The internal energy change formula is U = Q + W. In this case, U equals the overall change in the system's internal energy. Q is the amount of heat that is transferred from one system to another (outside the system).

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Concave mirrors form both real and virtual images.

A concave mirror has an inward-curving reflective surface that faces away from the light source. Light is reflected inward by concave mirrors to a single focus point. Unlike convex mirrors, a concave mirror's created image exhibits a variety of picture types based on the object's distance from the mirror.

A virtual, magnified image of the object is produced when the concave mirror is placed very close to it. As the distance between the object and the mirror increases, the size of the image decreases and real images are produced.

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