([3] w) p
18.0
16.0-
14.0
12.0-
10.0-
8.0 -
6.0
4.0
2.0 -
0-
0
0.5
Position v. Time for Motion with Uniform Acceleration
1.0 1.5
2.0
t(s)
2.5
run
3.0
3.5
4.0
rise
4.5
Practice
1. (a) Determine the instantaneous velocity at t= 1.0 s for the graph shown in Figure 6.
(b) Determine the instantaneous velocity at t = 3.0 s for the graph shown in Figure 6.

I need help figuring out what steps I should take.

A more fundamental way to measure the rotation of Jupiter is to measure the changes in the planet's radio waves, which are controlled by its magnetic field.

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Answer:

The major flow of this hypothesis was that the Sun could last only about 25 million years.

Explanation:

Gravitational contraction:

If the source of the Sun's energy is gravitational contraction,

from this process we could say that, the Sun could last only about 25 million years, which is far less than the age of Earth. But geologists already had evidence the Earth was much older than that.

So, the major flow of this hypothesis was that the Sun could last only about 25 million years.

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The object whose mass is distributed farther away from the axis of rotation will have greater rotational inertia.

Rotational inertia is a property of any object which can be rotated. It depends on mass and radius of the object.

The rotational inertia of two objects with the same mass and radius, is different when the mass distribution is different.

Thus, the object whose mass is distributed farther away from the axis of rotation will have greater rotational inertia.

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The amount of heat transferred from the ocean to the atmosphere as latent heat than sensible heat will be 10 times as much.

Latent heat and sensible heat are defined as follows:

Thus, the amount of heat transferred from the ocean to the atmosphere as latent heat than sensible heat will be 10 times as much.

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Answer:

7 minutes in a hour okay

Answer:

Wc - Ws = 25.25 - 23.075 = 2.175    weight of water displaced

Since water has a density of 1 means the chain has a volume of 2.175 cm^3

The density of the chain is M / V = 25.25 g / 2.175 cm^3

ρc = 11.6    which is less than pure gold of 19.32

This is all that one can say about the purity of gold in the chain because one does not know the density of other material in the chain.

That means that one does not know how much pure gold is actually in the chain without knowing the density of the rest of the chain.

The purity of gold in the ornament is approximately 99.95% which is determined by the Archimedes principle.

The apparent weight of the chain in water is less than its actual weight due to the buoyant force acting on it.

The volume of the chain.

Density of gold = 19.32 g/cm³

Weight of the chain = 25.25 g

Volume of the chain = W ÷ d

Volume of the chain = 25.25 ÷ 19.32

Volume of the chain = 1.307 cm³

The volume of water displaced.

The apparent weight of the chain in water = 23.075 g

Volume of water displaced = 25.25 - 23.075

Volume of water displaced = 2.175 g

The density of the chain is:

Density of the chain = 25.25 ÷ 1.307

Density of the chain = 19.33 g/cm³

The purity of gold.

Purity of gold = (19.32 ÷ 19.33 ) × 100

Purity of gold = 99.95%

Therefore, The purity of gold in the ornament is approximately 99.95%.

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The team of engineers must first define the problem, Option A.

The term air quality has to do with the overall purity of the air in a certain locality. We know that the air in an area is affected by the activities of the people that reside in that vicinity.

In this case, the team of engineers must first define the problem before they can  improve local air quality in the community.

Missing parts;

A team of engineers is asked to help a community improve local air quality. What must the team do before it can begin to identify possible solutions?

answer choices

Iterate to improve the solution.

Define the problem.

Select one solution.

Model the solution.

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According to law of reflection, the barber should place one mirror in front of the chair and two mirrors on the left and right sides of the chair perpendicular to the front mirror. According to law of shadows, the bulb should be placed above the chair.

What is the law of refraction?

The angle of incidence is equal to the angle of reflection.

What is the law of shadow?

The length of the shadow of an opaque substance on the surface decreases as the angle between the blocked light ray and the surface plane increases.

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Answer:

57.885.8 kg   weight of the container

Explanation:

The volume of the balloon * density of water = buoyant force of balloon

 volume of a sphere = 4/3 pi r^3

                                   = 4/3 pi * (1.5)^3 = 14.14 m^3   <===balloon volume

Now,   find the buoyant force on the container ALONE ....

             5.8 * 2.6 * 2.8  * 1027  = 43 364  kg   <=====  buoyant force

Now add the buoyant force of the balloon to find the weight

             43 364  +   14.14 * 1027 = 57885.8   kg

Answer:

The word "normal" in the phrase "normal force" indicates that: The force exerted by a surface is perpendicular to itself.

Explanation:

The Normal force refers to:

we can say that,

The standard force on the object lying on some surface is equivalent to the force of gravity.

generally The normal force is denoted with "N"

N = m*g

where m is mass of an object and g is gravitational acceleration.

hence

The word "normal" in the phrase "normal force" indicates that: The force exerted by a surface is perpendicular to itself.

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The length of the wire is 36 m.

The density is the ratio of the mass and volume of a substance. The density  is given by the formula,

d=m/V

where d is the density. m is the mass and V is the volume.

The density of the material does not change and the initial and final volume of the substance will be equal when it has changed shape provided the mass has not been changed.

The radius r of the sphere is half of its diameter. Therefore, r=6.0/2 = 3.0 cm.

Then volume of the sphere Vs is given by the formula,

Vs=(4/3)*π*r^3

Put the value of r in the above formula.

Vs=(4/3)*3.14*(3.0)^3

Vs=113.04 cm^3

For the cylinder, the radius s=0.2/2 mm = 0.01 cm and the length l is unknown. The volume of the cylinder Vc is given by the formula,

Vc=πs^2l

Put s=0.01 cm in this equation and solve it.

Vc=(3.14)*(0.01)^2l

Vc=0.000314 l cm^2

The volume of the wire (cylindrical in shape) and the sphere are same, therefore,

Vc=Vs

0.000314 l =113.04

l=3600 cm

I=36 m.

Hence the length of the wire is 36 m.

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The magnitude of the ball's velocity after 0.428 seconds is 6.62 m/s.

The new velocity, v, of the ball is related to its initial velocity, u and the acceleration due to gravity, g as follows:

v = u + gt

v = 2.33 + 9.81 x 0.428

v = 6.62 m/s

In conclusion, a ball falling under gravity with an initial velocity is accelerated as is it fall.

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Answer:

4.79 is the answer for tihs

Explanation:

When  the person stops pushing the magnet, no induced current is present in the coil since no relative motion exists between the coil and the magnet.

Electromagnetism is the process by which electric current is produced using a magnet as a result of the interaction of the electric and magnetic fields.

The movement of the magnet induces an electric current in the coil of wire.

Therefore, when the person stops pushing the magnet, no induced current is present in the coil since no relative motion exists between the coil and the magnet.

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The deceleration of the car is observed as 2 m/s^2.

The term deceleration has to do with the decrease of velocity with time.

Given that;

v = 65 km/h or 18 m/s

u = 126 km/h to or 35 m/s

t = 8.5 s

a = ?

v = u - at

18 - 35 = -8.5a

a = 18 - 35/-8.5

a = 2 m/s^2

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Answer:

the best answer would be c

Explanation:

The acceleration of the mass when it is nudged ever so slightly on the incline: a = (g sin(∅)) - (μ g cos(∅))

If the minimum mass on the incline is nudged ever so slightly, it will experience a force due to gravity pulling it down the incline. This force can be broken down into two components: one parallel to the incline and one perpendicular to the incline.

Since the mass is on an incline, it experiences a normal force that is perpendicular to the incline.

The perpendicular component, also known as the weight component perpendicular to the incline, is given by mg cos(∅).

The force of friction can be represented as the product of the coefficient of friction (μ) and the normal force (mg cos(∅)).

Therefore, the net force along the incline is;

(mg sin(∅)) - (μ mg cos(∅)).

To calculate the acceleration, we use Newton's second law, which states that the net force acting on an object is equal to its mass (m) multiplied by its acceleration (a).

(mg sin(∅)) - (μ mg cos(∅)) = ma

Simplifying:

a = (g sin(∅)) - (μ g cos(∅))

This is the expression for the acceleration of the mass when it is nudged ever so slightly on the incline. The acceleration will depend on the angle of the incline (theta), the coefficient of friction (μ), and the acceleration due to gravity (g).

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Answer:

the part of heating of corresponds to showing how the temperature changes as a substance for a constant rate

let me know if you need any details

answer the liquid phase which is segment c explanation to quiz

Answer:

Before the Renaissance, most people assumed that all celestial objects move around Earth.

Explanation:

During the renaissance period, it was believed that the Earth was flat and all the celestial objects revolved around the earth.

Therefore, before the Renaissance, most people assumed that all celestial objects move around Earth.

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total distance travel by the red spot is 4 times of Amplitude

Given:

A transverse wave on a string has an amplitude "A". A tiny spot on the string is colored red.

To find:

Distance travelled by red spot in one cycle of the wave.

Solution:

So, we know that particles in a transverse wave oscillate periodically in a direction perpendicular to propagation of wave.

Frankly speaking, the type of motion shown by particles is SHM (simple harmonic motion)

So, in a wave cycle, the red dot will start from a particular position and will end at the same position.

Let's assume that the red coloured part started from mean point. So, it will go to one extremity return back to the other extremity and finally end at the mean position.

So, it traverses a distance 4 times of the Amplitude.

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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

The displacement of the ball is zero.

What is displacement?

The smallest distance between the initial and final position of an object.

What are the equations of motion?

There are three equations of motion that completely describes the motion of an object.

The first equation of motion gives the relationship between the initial velocity, final velocity, acceleration, and time.

The second equation of motion gives the relationship between the initial velocity, displacement, acceleration, and time.

The third equation of motion gives the relationship between the initial velocity, final velocity, acceleration, and displacement.

Given time, initial velocity, and acceleration, the displacement can be calculated using the second equation of motion. The second equation of motion is,

s=u*t+(1/2)*a*t^2

Here, u=25 m/sec, a=-25 m/sec and t=2.0 sec.

Put the values in the formula and calculate the displacement.

s= (25)*(2.0)+(1/2)*(-25)*(2.0)^2

s=50-50

s=0 m.

Hence the displacement of the ball is zero.

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J.J. Thomson discovered the electron by noticing that a beam of particles could be influenced by an electric or magnetic force.. That is option B.

An electron can be defined as the part of an atom that is negatively charged and is found revolving round the nucleus of an atom.

J.J. Thomson was the scientist that discovered electrons through subjecting two oppositely-charged electric plates around the cathode ray.

He noticed that the particles where deflected by both the magnetic and electric fields.

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Newton and Einstein believe that the factor directly affects gravity is (a) the mass of objects.

Factor affects gravity:

The force that pulls items toward the center of a planet or other entity is called gravity. As we know gravity is a type of force that is mainly affected by the mass of the object and the distance between the objects. The object which has more mass will have large gravity and a smaller mass has small gravity and when the distance between the objects is smaller then the gravity is larger. Thus, the gravity is directly proportional to the mass of the objects and the inversely proportional to the distance between the objects.

Both Newton and Einstein believe that the gravity directly dependent on the mass of the objects.

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Answer:

Newton and Einstein believe that the factor directly affects gravity is (a) the mass of objects.

Factor affects gravity:

The force that pulls items toward the center of a planet or other entity is called gravity. As we know gravity is a type of force that is mainly affected by the mass of the object and the distance between the objects. The object which has more mass will have large gravity and a smaller mass has small gravity and when the distance between the objects is smaller then the gravity is larger. Thus, the gravity is directly proportional to the mass of the objects and the inversely proportional to the distance between the objects.

Both Newton and Einstein believe that the gravity directly dependent on the mass of the objects.

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Explanation:

Answer:

Mercury: Mercury is hot, but not too hot for ice. It has a thin atmosphere, and it doesn't have any moons.

Venus: Venus has a thick, toxic atmosphere filled with carbon dioxide and it's perpetually shrouded in thick, yellowish clouds of sulfuric acid that trap heat, causing a runaway greenhouse effect. That is why it is very hot on Venus.

Mars: Mars is similar to Earth. Like Earth, Mars has seasons, polar ice caps, volcanoes, canyons, and weather. It has an atmosphere, but it is very, very thin.

Jupiter: Because of its great mass, Jupiter is a great comet catcher. Jupiter is covered in swirling cloud stripes and has many storms. An example is the great red spot.

Saturn: No one knows how old Saturn's rings are. It remains a mystery. A cool fact about Saturn could float in water because it is mostly made of gas.

Uranus: Uranus is more stormy than we thought. Uranus is the coldest planet in the Solar System.

Neptune: Neptune has supersonic winds. These winds of are on average over 700 mph.

Arette is considered bilingual.

Within the context of this question, Arette is from France but speaks two different language

Bilingual is a word which is usually, frequently and most of the times used to describes a person, community or a nation that speaks two languages.

I myself too; I am bilingual; I speak English and Yoruba

Generally, people who speak more more more than one language are considered as linguists

In conclusion, Arette is considered bilingual.

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The magnitude of the net electric field at the origin due to the given distribution of charge is E_net = 4kQ/πR².

Given:

A semi-circle distribution with radius 'r'

Charges '+Q' and '-Q'

Calculation of net electric field:

Step 1:

The electric field for a charge is given as:

E = (kλ/R) i + (kλ/R) j         - ( 1 )

where, k is Coulomb's force constant

            λ is charge density

            R is separation distance between the charges

            i & j are unit vectors for x-axis and y-axis respectively

Step 2:

The electric field due to charge +Q is given as:

E₁ = (kλ/R) i - (kλ/R) j      - ( 2 )  

The electric field due to charge -Q is given as:

E₂ = (kλ/R) i + (kλ/R) j     - ( 3 )

Step 3:

Thus, the net electric field will be given as:

E_net = E₁ + E₂

Applying values in above equation, we get:

E_net = (kλ/R) i -(kλ/R) j + (kλ/R) i + (kλ/R) j

          =( kλ/R) [ i - j + i + j ]

          = 2i (kλ/R)                                     -( 4 )

Step 4:

Now, we know that the linear charge density is given as:

λ = Charge/length

   = Q/(πR/2)

   = 2Q/πR

Applying the value in equation 4, we get:

E_net = 2i (k(2Q/πR)/R)

          = 4i (kQ/πR²)

          = 4kQ/πR²

Therefore, the net electric field due to the given charge distribution is of magnitude 4kQ/πR² directed along the positive x-axis.

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The temporarily be the output of a 100-W light bulb is 148 watt.

To find the answer, we need to know about the resistance of the bulb.

Resistance= 115²/100= 132.25 Ohm

Power= voltage²/resistance

= 140²/132.25

= 148watt

Thus, we can conclude that the temporary output of the bulb is 148 watt.

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Answer:8 meters

Explanation:100cm is a meter

Answer:

8 meters

Explanation:

800 cm * 0.01 m/1 cm = 8.0 m

The conversion steps listed above in order from start to finish are already in an arranged form from 1-4.

A biosphere can be defined as the part of the earth that supports life. These include :

The flow of energy through the biosphere includes

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Answer:

A: 1,008

Explanation:

This is something I kinda recently learned, so I had the equation in mind. For this, it would be I(A) x V = P(W). So the equation would be 8.4 times 120, and doing some simple math, the answer would be 1,008 watts.

There ya go.