14. A car is moving with a constant speed around a turn. Can you also say that the car
is moves with a constant velocity, explain.
conds what is the

Answer:caca

Explanation:

because

Answer: 8800

Explanation:

There are two ways to solve this question.

1. Use the algorithm method which is:

First, multiply the 4 in the ones place to the zero in the one's place. Second, multiply the 4 in the ones place by the 0 in the tens place. Third, multiply the 4 in the ones place by the 2 in the hundreds place. you should get 800. next put a zero underneath the 800 in the ones place.

Next, multiply the 4 in the tens place to the 0 in the ones place of the 200. Then, multiply the same 4 to the zero in the tens place. After that, multiply the 4 of the tens place to the 2 in the hundreds place. You should write all these digits underneath your 800. Finally, add everything up and you should get your final answer of 8,800.

 200

 x44

-------------

 800

8,000

------------

8,000

2. Another way to solve this problem is by breaking it up:

First, multiply 44 and 100 which is 4400. Then, multiply 44 and 100 again which is 4400. Add both numbers together which equals 8,800. We broke up 200 into 100's to make it easier to solve.

Answer:

t = 157.1428 s

t = 2.619 min

Explanation:

d = v/t

t = dv

t = (990km)(6.3km/s)

t = 157.1428 s

t = 2.619 min

Hope that helps

The horizontal distance is R=165m

What is horizontal distance?

The angle of launch is θ=65∘

Let the hit velocity be u.

Using the formula of the range of a projectile,

R=u2 sin2θ/g

(165m)=u2sin(2×65∘)/9.8 m/s2

u2=2111 (m/s)2

⟹u≈46m/s

The projectile's horizontal range is the distance it travels while in flight. Since there is no acceleration in the horizontal direction, the greatest distance traveled in the horizontal direction is what is meant by this definition.

Therefore,

on the famous 18th hole at pebble beach, lionel forrest stands next to his ball on the fairway, 165 meters from the hole. his caddie hands him a golf club that will hit the ball at a 65° angle. the gravitational acceleration is 9.8 m/s2, and a stiff tailwind exactly cancels the effects of air resistance. how hard should lionel hit the ball to land it as close to the hole as possible?

The horizontal distance is R=165m

The angle of launch is θ=65∘

Let the hit velocity be u.

Using the formula of the range of a projectile,

R=u2 sin2θ/g

(165m)=u2sin(2×65∘)/9.8 m/s2

u2=2111 (m/s)2

⟹u≈46m/s

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Answer:

lionel should hit the ball at 46m/s

A person walks 60 meters, and then he walks 130 meters. The total distance covered by man is 190 meters.

The distance of an object is its overall motion, regardless of direction. The amount of space that an object has traveled, regardless of where it started or ended, is referred to as distance.

Given that it only depends on the magnitude and not direction, distance is a scalar number. Only positive numbers are possible for distance.

According to the question,

The man walks 60 meters, then he walks again for 130 meters.

So, total distance covered by man :

Total distance= D1 + D2

=60+130

Total distance= 190 meters.

So the Distance covered by the man is 190 meters.

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The battery’s negative terminal is attached to the chassis or metal body in automobiles. A single wire is used to connect the positive terminal to multiple electrical appliances.

The chassis is next connected to the negative terminal of the gadgets, completing the circuit for the current flow.

There will be a low resistance path for the current to travel when a wire is connected directly between a battery’s two terminals.

The battery will swiftly deplete, and the wire will become slightly heated (the amount of heat depends on the wire’s diameter; the smaller the diameter, the more heat).

A battery can generate power when it is included in a circuit. The positive terminal (cathode) and the negative terminal are the two ends of a battery (anode).

A circuit is created by connecting the two terminals with wire. A current of electricity is created as electrons move across the wire.

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The acceleration of the moving object can be defined by [tex]a_x = mv^{2} _0 * \lambda/(\lambda v_0t + m)^{2}[/tex].

In physics, acceleration is the rate at which the velocity of an object changes over time. They are vector quantities and accelerations. The direction of the net force acting on an item determines the direction of its acceleration.

Acceleration is the rate at which the speed and direction of a moving object change over time. A point or object is going ahead directly when it accelerates or decelerates.

the question is incomplete

An object moving in 1-dimension along horizonta surface denoted as the x-axis. The object is initially moving in the positive X-axis direction and the rate of energy decrease of the object is proportional to the square of its speed dE ~Avz In this equation A is a constant with units of kglm_ The speed of the object at b 0 s is Vo: What is the speed of the object as function of t > 62 HINT: since the object is moving along horizontal surface its energy is simply its kinetic energy: Substitute the equation for kinetic energy into the above differential equation for energy to determine the acceleration of the object:

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The electric field outside the balloon at all points in space is ω/ε where ω = Q/4πa^2.

To find the electric field(E) due to a symmetrical surface, Gauss’ Law is used, which is

E x (ds) = q/ε

Here ds = surface area of the surface

And Q = charge enclosed by the surface

As the balloon is spherical with radius a, its area will be 4πa^2

Putting the values in the above equation

E x 4πa^2 = Q/(ε)

E = Q/4πa^2(ε)

The surface charge density(ω) = Q/4πa^2

Hence

E = ω/ε

Thus, The electric field outside the balloon at all points in space is ω/ε where ω = Q/4πa^2.

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The only possible thing we can do is combine different atoms to form molecules and compounds

so the Correct choice is A

The half-life of carbon-14 to determine the age of an object that contains carbon B, C, A is the correct order of these steps.

Most industries in the world use carbon in some capacity. Coal, methane gas, and crude oil are all utilized as fuels (which is used to make gasoline). It is used to create a variety of products, including plastic and steel alloys (a combination of carbon and iron).

With the exception of a little amount that is present in the ocean, atmosphere, and living creatures, most of the carbon on Earth is trapped in rocks and sediments. These act as sinks or reservoirs for the carbon cycles.

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The amount of energy radiated by the earth peaks in the Infrared portion of the electromagnetic spectrum.

The amount of energy radiated by the sun, when reaching the Earth's surface, 49.4 % is infrared radiation, 42.3 % is visible light and 8.3 % is ultraviolet radiation.

Energy is radiated back into the atmosphere after receiving from the sun    ( in the form of light ). Since the Earth is much cooler when compared to the Sun, the energy radiated is much weaker. So it is radiated in the form of Infrared radiation ( long wavelength )

Therefore, the amount of energy radiated by the earth peaks in the Infrared portion of the electromagnetic spectrum.

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The statement best describes the purpose of the experiment is A ) To relate the type of box material to the temperature of air within the box

Here, two boxes of same size is exposed to sunlight for the same amount of time. The only different factor is the material of the box. So, only factors relating to the material of box might change. The temperature of air inside the box will change due to the material of box.  

The glass allows up to 90 % of visible light and 72 % of UV light to pass through whereas plastic does not allow UV light to pass through. So there will be a temperature difference between the air in two boxes made of glass and clear plastic.

Therefore, the purpose of this experiment is to relate the type of box material to the temperature of air within the box ( A )

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The work required to move a charge q from the other vertex to the center of the line joining the fixed charges is zero.

The charge on two vertices of the equilateral triangle are Q and -Q which is fixed. On the other vertex is a point charge q. The work done to move the point charge q from the vertex to the midpoint of other two charges Q and -Q is the change in potential energy of the charge q.

We know that,

U = q V

V = k q / r

where,

U = Electric potential energy of a charge

V = Electric potential at a point due to a point charge    

k = Coulomb's constant

r = Distance

Change in potential energy of charge q, ΔU = q ΔV

ΔU = q ( [tex]V_{f}[/tex] - [tex]V_{i}[/tex] )

Electric Potential at the midpoint of charges Q and -Q,

[tex]V_{f}[/tex] = k Q / ( a / 2 ) + k ( - Q ) / ( a / 2 ) = 0

Electric Potential at the vertex of charges q,

[tex]V_{i}[/tex] = k q / a + k ( - q ) / a = 0

ΔU = 0

The given question is incomplete. The complete question is:

Two particle with charges Q and -Q are fixed at the vertices of an equilateral triangle with sides of length a, the work required to move a particle with a charge q from the other vertex to the center of the line joining the fixed charges is?

Therefore, the work required to move a charge q from the other vertex to the center of the line joining the fixed charges is zero.

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In decreasing order, the ranking is as follows:

What is displacement?

Displacement can simply be defined as the difference in the position of the two objects and is independent of the path taken when traveling between the two objects.

Displacement is a vector quantity that has both a direction and magnitude.

The displacement of a hiker with a constant acceleration is equal to the average velocity during a time interval multiplied by the time interval.

The reason is because the time intervals are equal, the displacements are in the same order as decreasing average velocities. So therefore, the average velocity decreases in the order CD, DE, EF, and FG.

In conclusion, displacement depends on two positions which is the initial position and the final position.

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Answer:

Normal force

Friction force

Gravity force

Explanation:

1.Friction force F is the sum of all the horizontal tire forces.

2.Normal force R is the sum of all normal tire forces applied by ground on the vehicle in the r direction

3gravity g =mgk

Answer:

1. Time

2.Energy

3.speed

Explanation:

1.time : as the driver moves every seconds the driver move is counted and know as time he can drive for an hr

2. Energy : the strength the driver put In to make the car move is energy

3. Speed : speed is the acceleration the driver uses

(A) Salad, is not a homogeneous mixture.

If the chemical makeup of a combination remains constant throughout, it is considered to be homogenous. Homogeneous mixtures and pure substances are sometimes confused with one another since they are both uniforms. The uniformity of the substance's makeup matters. The amount of salt in the water can vary from sample to sample.

All solutions would be regarded as homogenous since the dissolved ingredient is distributed uniformly across the entire solution. Since none of the components of the combination have interacted with one another, the identities of the individual materials have not changed.

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The wavelength of the infrared radiation is  λ = [tex]3.174[/tex]×[tex]10^{-5}[/tex]m.

An infrared telescope is tuned to detect infrared radiation with a frequency of 9.45 THz.

We know that,

1 THz = 10¹² Hz

So,

f = 9.45 × 10¹² Hz

We need to find the wavelength of the infrared radiation.

λ=c/f

λ = 3×[tex]10^{8}[/tex]/9.45×[tex]10^{12}[/tex]

λ = 3.174 ×[tex]10^{-5}[/tex] m

The term "infrared radiation" (IR) refers to a part of the electromagnetic radiation spectrum with wavelengths between about 700 nanometers (nm) and one millimeter (mm). Longer than visible light waves but shorter than radio waves are infrared waves.

Electromagnetic radiation with wavelengths longer than those of visible light is known as infrared, also known as infrared light. Since it is undetectable to the human eye, The typical range of wavelengths considered to be infrared (IR) is from about 1 millimeter to the nominal red edge of the visible spectrum, or about 700 nanometers.

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The total displacement of the ponies in the new pasture is 20m in the East direction.

The change in position of an object is measured by two physical quantities namely Distance and Displacement.

Distance is the total path traveled by the object. It is a scaler quantity. It can never be zero for a moving object. Also, its value can never be negative.

Displacement is the length of the shortest path connecting the initial and final position of the object. It is a vector quantity. Its value can be negative or zero for a moving object.

Given in the question, the pony moves 40m in the North direction and 40m in the South direction. These Directions are opposite to each other and cancel out each other. So the net displacement is only due to the movement of 20m in the East direction.

So Total Displacement = (40m North) - (40m South) + (20m East)

Total Displacement = 20m East

Hence, the total displacement of the ponies in the new pasture is 20m in the East direction.

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When a 557 hz tone is sounded at the same time as a 517 hz tone, the beat frequency would be 40hz.

The difference in frequency between two waves is known as the beat frequency. It is as a result of both positive and negative interference. While we perceive the regular frequency of the waves as the pitch of the sound, we perceive the beat frequency as the rate at which the loudness of the sound varies.

The difference in frequency between the two superimposed waves is the formula for beat frequency.

Beat is the pulsing that two waves with slightly differing frequencies combine to create in physics.

Beat frequency = | f1 - f2 | or no. of cycles/time

= |557-517|
= 40Hz

Thus, the beat frequency is 40Hz

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You have found that tides on earth are determined primarily by the position of the moon, with the sun playing only a secondary role.  The moon plays a greater role in causing tides than the sun because it is close to the earth than the sun.

Earth orbits around the sun due to its gravitational force, however, the formation of tides in the ocean takes place due to the force of gravity exerted by the moon.

Both the sun and the moon exert a gravitational pull on the earth.

Due to the difference in their distance, the moon plays a crucial role and has a dramatic effect on the earth which leads to tide generation as it has a greater force of gravity on earth as compared to the sun.

When the moon is closer to earth, a strong and large number of tides are formed.

In other words, no doubt the sun is much greater in size and has a large gravitational force but due to the large distance from earth, it does not play a greater role in the formation of tidal waves.

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Answer:

n the first part of Lesson 1, it was mentioned that sound is a mechanical wave that is created by a vibrating object. The vibrations of the object set particles in the surrounding medium in vibrational motion, thus transporting energy through the medium

At low temperatures, most molecules have speeds close to their average speed.

A plot of the maxwell distribution of speeds for the same sample of gas at different temperatures shows that: At low temperatures, most molecules have speeds close to their average speed.

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The longest wavelength (nm) that can provide an energy of at least 415 kj/mol for a signal that is carried down in the consecutive cycles is 6.263 x [tex]10^{38}[/tex] /sec.

A waveform is a kind of signal that is carried throughout in space or down a wire that has a wavelength, which is the separation between two identical places in the consecutive cycles.

This length can be mostly defined in wireless systems in metres (m), centimetres (cm), or millimetres (mm).

The wavelength, can also be applied to troughs, is the separation between two wave crests.

This frequency can be measured in cycles per second (Hz), which is the also defined as the quantity of vibrations that cross a specific area in a second (Hertz).

The fundamental universal constant that is known as Planck's constant, or also symbolized as H, is the one that establishes the quantum nature of energy and links the energy of a photon to its frequency.

Energy = plank's constant x frequency

⇒ frequency = energy/ plank's constant

= 4.15 x [tex]10^{5}[/tex]/6.626 x [tex]10^{-34}[/tex]

= 6.263 x [tex]10^{38}[/tex] /sec

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Since the powerful gravitational pull of the Sun, all of the the solar system's planets revolve around it. The Sun basically attracts the solar system's planets, encompassing Earth, as well as allows them to be in orbit.

Kepler's laws of planetary motion was initially published at 1609 and 1619 by Johannes Kepler which implies the description of the main orbits of planets around the Sun.

They explain the following scenarios:

Thus, this way, the orbits of the planets around the sun work.

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The tension in the string suspending the weight of the block is determined as 6.47 N.

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

The tension in the rope used in towing the car up hill is calculated as follows;

T = ma

where;

Substitute the given parameters and solve for the tension in the string suspending the weight of the block.

T = 0.66 kg x 9.8 m/s²

T = 6.47 N

Thus, the tension in the string suspending the weight of the block is determined as 6.47 N.

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Explanation:

9.80665 N/kg is the force applied by Earth's gravity on a 1 kg of mass (that is then the weight of 1kg mass). the acceleration due to this gravity is usually correspondingly defined as 9.81m/s².

now we have 99 kg.

that means we have to multiply 9.81 by 99

99×9.81 = 971.19 N

if we just roughly round the weight of 1 kg from 9.81 to 10 N, we get then the proposed 99×10 = 990 N result.

but as you can see, this is not very precise.

Answer:  condensation

Explanation:    

i hope it helped