An Alaskan rescue plane traveling 46 m/s drops a package of emergency rations from a height of 101 m to a stranded party of explorers. The acceleration of gravity is 9.8 m/s^2. Where does the package strike the ground relative to the point directly below where it was released? Answer in units of m.

When a charged body is placed near the conductor, the opposite charge is appeared on the one side of the uncharged conductor body near the charged body under the effect of induction.

The opposite charge on the another body is also known as the induced charge.

The perpex rod in the given question is charged.

let the charge on the perpex is positive as shown in the figure.

Then, the polystrene sphers (insulator uncharged sphere) will not have any charge induced as the charges are not free to move inside the insulator.

Thus, when a charged perspex rod is placed close to a suspended polystyrene sphere then the induced charge on the sphere is not observed under the phenomenon of induction process and sphere remain uncharged.

Answer:

If the force applied on the object is in the direction of its motion, the speed of the object increases. If the force is applied in the direction opposite to the direction of motion, then it results in a decrease in the speed of the object.

Answer:

does work have to be done to hold the object in place

Answer:

Does the object move when it is released from a rest position? and Does a force act on the object?

Explanation:

i had the same quiz today and the other 2 are wrong

Answer:

because switch moves after a waiter

Explanation:

The energy of the photon is approximately 0.263 fJ (femtojoules).

To find the energy of the photon, we can use the equation E = (h * c) / λ, where E represents energy, h is Planck's constant, c is the speed of light, and λ is the wavelength of the photon.

The speed of light is given as 3.00 × \(10^8\) m/s, so we don't need to make any conversions.

The given wavelength is 0.653 nm. To convert it to meters, we need to multiply it by a conversion factor. Since 1 nm is equal to 1 × 10^-9 meters, we can multiply 0.653 nm by 1 × \(10^-^9\) to get the wavelength in meters: 0.653 × \(10^-^9\)m.

Now, we can use the formula E = (h * c) / λ. Plugging in the values, we get:

E = (6.262 × \(10^-^3^4\) J·s * 3.00 ×\(10^8\) m/s) / (0.653 × 10^-9 m).

After simplifying the expression, we find:

E ≈ 0.263 fJ (femtoJoules).

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Answer: 4 m/s

Explanation:

The scooter's velocity after 2 seconds of its start will be 4 m/s.

The first equation of motion is -

v = u + at

Given is Ms. Reitman's scooter that starts from rest and accelerates at

2 m/s².

We can write -

[a] = 2 m/s²

[t] = 2 s

Using the first equation of motion, we can write -

v = u + at

v = 0 + 2 x 2

v = 4 m/s

Therefore, the scooter's velocity after 2 seconds of its start will be 4 m/s.

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Answer:

Farther Away

Explanation:

The particles move past each other faster and vibrate more. Water, just like air, expands when its particles are pushed farther apart. The particles in water, just like the particles in the air, get pushed farther apart when the kinetic energy of the particles increases. Solids, liquids, and gases are all matter.

Answer:

1. 7.5 km/h

2. 1 hour, 52 minutes, 30 seconds

3. 0.8 Joules

4. 13.33 mph

5. 19456 Joules

6. 10.5 kg

Explanation:

Answer:

2NH3 --> N2 + 3H2 decomposition

Answer:

well, the hill isn't constantly going down hill, there's an ending point or goes back up hill making a v/u shape or there's nothing helping the wagon being pushed or pull currently

Explanation:

The change in the momentum was found to be 16,000 kgm/s

Change in momentum ?

Situations involving impulse and momentum are all around us, whether we notice it or not. Before we begin evaluating these daily instances, we'll go over the fundamental ideas of impulse and momentum.

In physics, an impulse (Ft) is a force (F) operating over a certain time (t) that results in a change in momentum (p) of an object. The impulse-momentum theorem is the equation of impulse with the change in momentum.

the change in the momentum was Δp=mxΔv

Δp=2000x8

Δp=16,000 kgm/s

therefore the change in momentum was found to be 16,000kgm/s

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Direction of |a+b| is south east and that of |a-b| is north east.

Given

a = 3i - 2j

b = -i - 4j

To find,

a+b =?

a-b =?

|a+b| = |(3i - 2j - i - 4j)|

        = |2i - 6j|

        = \(\sqrt{2^{2} + (-6^{2}) }\)

        = \(\sqrt{4+36}\)

        = \(\sqrt{40}\)

        = \(2\sqrt{10}\)

|a-b| = |(3i - 2j) - (-i - 4j)|

       = |3i -2j + i + 4j|

       = |4i + 2j|

       = \(\sqrt{4^{2} + 2^{2} } \\\)

       = \(\sqrt{16+ 4}\)

       = \(\sqrt{20}\)

       = \(2\sqrt{5}\)

Direction of |a+b| is south east (|2i - 6j|, this shows 2 units to the right and 6 units down)

Direction of |a-b| is north east (|4i + 2j|, this shows 4 units right & 2 units up)

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An environmental hazard is a threat posed by natural or human-made conditions that may have a negative impact on the environment, human health or other living organisms.

One example of an environmental hazard is air pollution which can be caused by a range of factors including industrial emissions, vehicle exhaust, and wildfires. Air pollution can have a range of harmful effects on human health including respiratory problems, heart disease and cancer. It can also have negative impacts on wildlife, ecosystems and natural resources.

Other examples of environmental hazards may include toxic waste, climate change, deforestation & water pollution. These hazards may have a range of short and long-term effects on the environment and may require coordinated efforts from governments, individuals and organizations to address and mitigate their impact.

The answer is general because no context is provided.

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The magnitude of the average force is -1.5×10³ N.

What is force?

A force is any action that seeks to preserve, modify, or deform a body's motion.

We know,

The magnitude of the average force is:

F = m(v-u)/t

F = Average force

m = mass of the cyclist

v = Final velocity

u = Initial velocity

t = time.

Putting values into the formula

F = 50(0-10)/0.5

F = -1500 N

F = -1.5×10³ N

The negative sign is the force act against the motion of the cyclist.

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When calculating a coloured solution's concentration, the wavelength of maximum absorbance is chosen since at this wavelength, even a small change in concentration can result in a noticeable change in light absorption.

The maximum absorbance wavelength is determined. Introduction: The reason coloured solutions are coloured is because they selectively absorb some light wavelengths while allowing other wavelengths to pass through. The light wavelengths that are not absorbed are what we, as observers, see.

The absorbance between 400 and 650 nm, often at intervals of 25 nm, is measured in order to establish the wavelength of maximum absorption. To identify the wavelength of greatest absorption, the data can be reviewed or graphed.

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Answer:

vector is a physical quantity while velocity is a vector physical quantity

Answer:

Insulator.

Explanation:

The wood is not conductive, and therefore unablelecronse to transport

The distance between the planes is approximately 644.00 meters at the moment the air traffic controller makes a note about their positions.

For Boeing 747 it is given that:

Altitude: 2500 m

Climbing at 10° above the horizontal and moving 30° north of west.

We can break down the Boeing's motion into components:

1. Horizontal component (x-coordinate):

\(\[x_{\text{Boeing}} = 2500 \tan(10^\circ) \cos(30^\circ)\]\)

2. Vertical component (y-coordinate):

\(\[y_{\text{Boeing}} = 2500 \tan(10^\circ) \sin(30^\circ)\]\)

3. Westward motion (z-coordinate):

\(\[z_{\text{Boeing}} = -2500 \tan(10^\circ)\]\)

So, the position vector of the Boeing 747 relative to the control tower is:

\(\[\vec{r}_{\text{Boeing}} = (x_{\text{Boeing}}, y_{\text{Boeing}}, z_{\text{Boeing}})\]\)

Now let's calculate the values:

\(\[x_{\text{Boeing}} = 2500 \tan(10^\circ) \cos(30^\circ)\\\\ \approx 405.51 \, \text{m}\]\)

\(\[y_{\text{Boeing}} = 2500 \tan(10^\circ) \sin(30^\circ)\\\\ \approx 72.17 \, \text{m}\]\)

\(\[z_{\text{Boeing}} = -2500 \tan(10^\circ)\\\\ \approx -454.66 \, \text{m}\]\)

So,

\(\[\vec{r}_{\text{Boeing}} \approx (405.51 \, \text{m}, 72.17 \, \text{m}, -454.66 \, \text{m})\]\)

For Douglas DC-3:

Given:

Altitude: 3000 m

Climbing at 5° above the horizontal and moving directly west.

1. Horizontal component (x-coordinate):

\(\[x_{\text{DC-3}} = -3000 \tan(5^\circ)\]\)

2. Vertical component (y-coordinate):

\(\[y_{\text{DC-3}} = 3000 \tan(5^\circ) = 3000 \cdot \frac{\tan(5^\circ)}{\cos(90^\circ)}\]\)

The westward motion does not affect the y-coordinate.

So, the position vector of the Douglas DC-3 relative to the control tower is:

\(\[\vec{r}_{\text{DC-3}} = (x_{\text{DC-3}}, y_{\text{DC-3}}, 0)\]\)

Calculating the values:

\(\[x_{\text{DC-3}} = -3000 \tan(5^\circ)\\\\ \approx -261.80 \, \text{m}\]\)

\(\[y_{\text{DC-3}} = 3000 \cdot \frac{\tan(5^\circ)}{\cos(90^\circ)}\\\\ \approx 267.95 \, \text{m}\]\)

So,

\(\[\vec{r}_{\text{DC-3}} \approx (-261.80 \, \text{m}, 267.95 \, \text{m}, 0 \, \text{m})\]\)

Now, let's calculate the distance between the two planes using the Euclidean distance formula:

\(\[d = \sqrt{(x_{\text{Boeing}} - x_{\text{DC-3}})^2 + (y_{\text{Boeing}} - y_{\text{DC-3}})^2 + (z_{\text{Boeing}} - 0)^2}\]\)

Substituting the values and calculating:

\(\[d \approx \sqrt{(405.51 \, \text{m} - (-261.80 \, \text{m}))^2 + (72.17 \, \text{m} - 267.95 \, \text{m})^2 + (-454.66 \, \text{m})^2}\]\)

\(\[d \approx \sqrt{167667.24 + 40631.96 + 206602.27} \approx \sqrt{414901.47} \approx 644.00 \, \text{m}\]\)

Thus, rounding the result to two decimal places: The distance between the planes is approximately 644.00 meters.

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Your question seems incomplete, the probable complete question is:

In the control tower at a regional airport, an air traffic controller monitors two aircraft as their positions change with respect to the control tower. One plane is a cargo carrier Boeing 747 and the other plane is a Douglas DC-3. The Boeing is at an altitude of 2500 m, climbing at 10°above the horizontal, and moving 30° north of west. The DC-3 is at an altitude of 3000 m, climbing at 5° above thehorizontal, and cruising directly west. (a) Find the position vectors of the planes relative to the control tower. (b) What is the distance between the planes at the moment the air traffic controller makes a note about their positions?

The warmer air rises and acts as a lid, trapping the colder air near the ground. The air layer closest to the ground becomes more and more polluted as a result of pollution, including that from traffic, being trapped. This continues until the current meteorological conditions change.

What is temperature ?

Temperature is a unit used to represent how hot or cold something is. It can be stated using the Celsius or Fahrenheit scales, among others. Temperature shows which way heat energy will naturally flow, i.e., from a hotter (body with a higher temperature) to a colder (body with a lower temperature) (one at a lower temperature).

What is pollution ?

The release of dangerous substances into the environment is referred to as pollution. Pollutants are these dangerous materials. Natural substances like volcanic ash are examples of pollutants. They may also be the result of human activity, such as the production of factory runoff or waste.

In a temperature inversion, the warmer air serves as a lid, keeping pollutants close to the ground and preventing them from dispersing until the weather changes. The chemicals consequently pose a significant threat to human health by reacting with one another to create other pollutants like ground-level ozone.

Therefore, Temperature inversions work to trap pollution is mentioned above.

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Vertical axis wind turbines (VAWTs) have some disadvantages compared to horizontal axis wind turbines (HAWTs). Here are a few:

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Pierre Charles L'Enfant was an inventor and architect who is best known for designing the city plan of Washington, D.C., the capital of the United States.

An inventor is a person who creates new and useful ideas or devices that are often innovative and novel. Inventors can work in a wide range of fields, from technology and engineering to medicine and the arts. Their ideas and inventions can be revolutionary and can have a significant impact on society and the economy. The process of inventing typically involves identifying a problem or need, and then developing and testing a solution or device to address that problem. Inventors may work alone or as part of a team, and they may collaborate with other professionals, such as engineers, scientists, or designers, to bring their ideas to fruition.

Here,

L'Enfant was born in France in 1754 and received his training as an engineer and military officer. He served in the Continental Army during the American Revolution and later worked as a city planner and surveyor.

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Hence the complete statement will be, " Sensation " occurs in the body while perception occurs in the brain.

Option D

Generally, senses acquire facts from the surroundings using the sensory receptors which eventually feed into neural inputs.

These neural impulses are then dispatched to the brain there it is prepared and interpreted for in addition evaluation which is recognized as perception.

Therefore,we have the follow statements to be true

Sensation occurs in the body

Perception occurs in the brain

Option D

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If the distance between the two charges is doubled, the attraction or repulsion becomes weaker.

Explanation:

The false statement is B) Homolytic bond cleavage yields neutral radicals in which each atom gains one electron.

In homolytic bond cleavage, each atom retains one electron from the shared pair of electrons, resulting in the formation of two neutral radicals, where each atom retains its original number of electrons.

No atoms gain or lose electrons in this process.

In a homolytic bond cleavage, a covalent bond is broken, and the shared pair of electrons is split equally between the two atoms involved in the bond.

This results in the formation of two neutral radicals, with each atom retaining one of the electrons from the shared pair.

A radical is a chemical species characterized by the presence of an electron that is unpaired, meaning it does not have a partner electron with which it forms a complete pair. When a covalent bond is homolytically cleaved, each atom involved in the bond gains one electron, resulting in the formation of two radicals.

These radicals are highly reactive due to the presence of the unpaired electron, which makes them prone to participate in further chemical reactions.

It's important to note that in homolytic bond cleavage, there is no transfer of electrons from one atom to another.

Instead, the bond is broken in a way that allows each atom to retain one of the electrons, leading to the formation of two neutral radicals.

Therefore, statement B, which suggests that each atom gains one electron, is false.

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Answer:

100kg

Explanation:

use the 1/2mv^2 formula to find the mass

The statement a,d and e are correct. The chemical equation must be balanced.

One or more compounds, known as reactants, are transformed into one or more distinct substances, known as products. Such a process is known as a chemical reaction.

The given equation is;

\(\rm CH_4+2O_2 \arrow \rightarrow CO_2+2H_2O\)

The statements that apply in order to complete the model is;

a) The products must equal the reactants.

d) One carbon atom and two oxygen atoms are needed to balance the equation.

e) One carbon dioxide molecule should be added to the product side of the equation.

Hence, statement a,d and e are correct.

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Answer:

The answer to this question is D

Explanation:

Also all the answers are..

1. B

2. D

3. B

4. D

5. B