A fighter jet of mass 12,652 kg is carrying a single 190 kg missile and traveling at a speed of 365 m/s relative to the ground. The fighter jet launches the missile at a speed of 1,207 m/s relative to the ground. How fast is the fighter jet traveling the instant after it launches the missile?

It  will take the object a total time of 1.564 seconds to fall from a height of 12m.

Time is the apparent progression of events from past to future.

To calculate the time it takes the object to fall to the ground, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Solve for the value of t

Hence, it will take the object 1.564 seconds to fall to the ground.

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Answer:

Before the rubber ball moves, it's stationary. Therefore the energy is Potential. As it rolls, the energy is transferred equally between the ball itself and the ramp, making the energy transferred Kinetic Energy.

Explanation:

Option 3. is the correct answer.

Mass of object 1 at one end = 20 kg

Mass of object 2 at the other end = 8 kg

The total length of a stick = 70 cm  

The mass of the stick is negligible

As we know that x =  m₁x₁+m₂x2/m₁ + m₂  

x = 20(0) + 8(70)/20 + 8  

As the first object is at the start so distance is equal to 0

x = 20 cm

Point B is the point from which the stick remains horizontal when suspended from the cord.  

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A vector is a DNA can be defined as a molecule which is used as a vehicle to artificially carry foreign genetic material into another cell, where it can be replicated and/or expressed.

What does this tell you about the number and distribution of ecori sites in the vector?

When a vector DNA is digested with restriction endonuclease such as EcoRI, the DNA molecule is cleaved at unique sites. EcoRI recognizes the six-base-pair sequence GAATTC in the vector DNA. On the number of sites this sequence is present in the vector, the DNA molecule is cleaved at those site. For example if this sequence is present at five sites in a vector DNA, then endonuclease EcoRI will digest the DNA molecule  into six fragments ranging from 3.6 to 21.2 kilobases long.

This is how we can tell about the number and distribution of ecori sites in the vector.

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Answer:

Explanation:

Given:

m - mass

h - height

M - mass of the planet

R - planet radius

G - Gravity constant

_________

g - ? Acceleration of free making

Newton's law of universal gravitation:

F = G·m·M / (R +h)

g = F / m

g = G·M / (R +h)

When the voltmeter pointer moves 2.1 centimeters on the scale, it rotates 20.06 degrees. The concept is the measure of an arc equals to the measure of the central angle.

The ratio of an arc length to the circumference equals to the ratio of a central angle to the total degrees of a circle.

[tex]\frac{x}{2 \pi r} = \frac{\alpha }{360}[/tex]

Where

Given the case a voltmeter pointer is 6 centimeters in length. When it moves 2.1 centimeters on the scale, what is the number of degrees through which it rotates?

Without the figure, we assume that the radius of the circle is 6 cm when the arc length is measured. So, we got:

The number of degrees through which it rotates is the central angle.

[tex]\frac{x}{2 \pi r} = \frac{\alpha }{360}[/tex]

[tex]\frac{2.1}{2 \times 3.14 \times 6} = \frac{\alpha }{360}[/tex]

[tex]\frac{2.1}{37.68} = \frac{\alpha }{360}[/tex]

[tex]\alpha = \frac{2.1 \times 360}{37.68}[/tex]

α = 20.06°

Hence, the number of degrees through which it rotates is 20.06 degrees.

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All the statements in the question about the rings of Neptune above are correct.

Neptune is the eighth planet in our Solar System. It has a planetary ring system that may consist of ice particles coated with silicates. The first was detected by a team led by Edward Guinan in 1968, with the following hypothesizes solved by Voyager 2's images in 1989.

There are three main rings in Neptune's planetary ring system:

The picture attached is a combined color and near-infrared image of Nepture created by NASA and ESA.

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If an astronaut is traveling in a spacecraft in outer space in a straight line at a constant speed of 0.500 c, she would feel heavier.

According to relativity, the faster one moves, the more mass they have. If one travels at speed of light, their mass becomes infinite and would have to slow down.

M = Mo / √ [ 1 - ( c² / v² ) ]

M = Mass of body at a given speed

Mo = Mass of body at rest

c = Speed of light

v = Speed of body

Here, v = 0.5 c

M = Mo / √ [ 1 - ( c² / ( 0.5 c )² ) ]

M = Mo / √ - 0.75 / 0.25

M = Mo / √ - 3

M > Mo

Therefore, f an astronaut is traveling in a spacecraft in outer space in a straight line at a constant speed of 0.500c, she would feel heavier.

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The inertia of the elephant Mel in terms of the inertia Mm of the monkey is 2Mm

the moment = 0

from monkey & giraffe

Mm*3d = Mg*d

Mg = 3*Mm

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

for Me  & Mg

(Mg + Mm)*2d = Me*4d

(3Mm+Mm)*2d = Me*4d

4*Mm*2 = 4*Me

Me = 2Mm

Until some force changes the speed or direction of an object, it will continue to move in the same direction. This is known as inertia. The phrase is correctly understood as a shortened form of "the principle of inertia," which is a concept that Newton discussed in his first law of motion. Unless influenced by an unbalanced force, an object at rest stays at rest, and an object in motion stays in motion while maintaining a constant speed and a straight line. An object at rest has a tendency to stay at rest, and an object in motion has a tendency to continue moving in a straight line at a constant speed.

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The approximate acceleration of the riders on the bike is 3 m/sec².

The rate at which an item changes its velocity is known as acceleration, a vector quantity. If an object's velocity is changing, it is acceleration.The net acceleration that objects get as a result of the combined action of gravity and centrifugal force is known as the Earth's gravity, or g. It is a vector quantity whose strength or magnitude is determined by the norm and whose direction correlates with a plumb bob.

Given total force applied = 30 + 20 = 50 N

Mass of two riders = 150 Kg

So, the acceleration = 150 /50 = 3 m/sec².

The approximate acceleration of the riders on the bike is 3 m/sec².

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3.5 m / s  is their speed after the collision.

Mass of a car = 1000 kg,

Velocity car = 8 m/s,

Mass  lorry = 3000 kg,

Velocity lorry = 2 m/s.

u = initial velocity,

v = final velocity.

m₁ = 1000 kg, m₂ = 3000 kg, u₁ = 8 m/s, u₂ = 2 m/s

(1000)(8) + (3000)(2) = (1000 + 3000)·v

8000 + 6000 = 4000·v

4000·v = 14000

v = 3.5 m/s

velocity (often abbreviated as "s") is a scalar variable that describes how lots an item's vicinity modifications over time or how plenty it modifications in step with unit of time.

The average speed of an item in a period of time is the distance traveled with the aid of the object divided by way of the length of the length.

Time divided with the aid of distance are the rate-associated metrics.. The meter in keeping with second (m/s) is the SI unit of pace, while the kilometer consistent with hour (kph) is the most usually used unit of speed in each day existence.

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Answer:3 atoms

Explanation:

each molecule of water contains 2 H and 1 O atom = 3 atoms, so there are approximately 1.8 x 10^24 atoms in a mole of water.

The number of atoms that exists in one mole of water (H₂O) is 1.8 x 10²⁴.

The atom is the smallest unit of matter that may be broken into smaller pieces without generating electrically charged particles. Furthermore, it is the tiniest substance with properties like chemical elements. Consequently, the atom is the fundamental unit of chemistry.

Vacuum space constitutes the majority of an atom. The remaining component consists of a positively charged nucleus consisting of protons and neutrons around a negatively charged electron cloud.

Given:

The mole of water, [tex]m = 1 mole[/tex]

One mole of water contains 6.02 x 10²³  molecules of water.

But each molecule of water has 2 Hydrogen and 1 Oxygen atom.

In H₂O, there are 2 + 1 = 3 atoms.

Thus, there are 3 x 6.02 x 10²³ atoms in 1 mole of water, which is equal to 1.8 x 10²⁴ atoms.

Therefore, the number of atoms present in one mole of  H₂O is 1.8 x 10²⁴.

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The ice chunk that breaks off a glacier and falls 30. 0 meters will take around 2.47 seconds to hit the water.

State the equations of motions?

First law of equation: v = u + at

Second law of motion: s = ut + / at2

Third law of motion: is v^2=u^2 + 2as

The informations given in the question are

The height from where chunk fell = h = 30.0 m

The initial velocity of the ice chunk that broke off the glacier = u = 0 m/s

Let us assume that the time taken to cover 30.0 m of height is t

Considering the acceleration due to gravity = g =9.8 seconds

With the help of second equation of motion, we find

=> h = ut + 1/2 gt²

=> 30 = 0 + 1/2 × 9.8 × t²

=> t² = 30 x 2/9.8

       = 6.122

=> t = 2.47 second

Hence, The ice chunk that breaks off a glacier and falls 30. 0 meters will take around 2.47 seconds to hit the water.

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The acceleration of the car is -1.26 m/s.

The acceleration is described as the rate of change of the velocity of an object with respect to time. Accelerations are known as vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object.

From question we have

u = 23, v = 0 , distance = 210

Using  v² = u² - 2as

0² = 23²- 2 * a* 210

a = u²/ 2 * 210

a = 1.26m/s²

In conclusion, we used newtons third law of motion to get the value for the acceleration.

Where:

V represents the final speed.

U is the initial speed.

a represents the acceleration.

S is the distance covered.

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Answer: 98 J

Explanation:

The starting GPE is 0 because the block is at h=0 (bottom of the incline).

The block moves 5.0 m up the incline, so you have to figure out its height (h) relative to the bottom of the incline, where h=0.

sin30 = h/5

solve for h:  h = sin30 x 5 = 2.5m  (height of the block, 5 m up the incline)

Now you can solve for GPE = mgh

GPE = (4 kg)(9.8 m/s2)(2.5 m) = 98J

Its speed gets smaller and its wavelength decreases.

As light travels from one medium to another, its wavelength drops, and as a result, its speed also reduces (although the frequency is unaffected). The ratio of the speed of light in a vacuum to that in a second medium with a higher density is the refractive index. It is also known as the index of refraction. In mathematics and descriptive writing, the letter n or n' is most frequently used to represent the refractive index variable. The degree to which a light beam is deflected (or refracted) when it enters or exits a substance varies with its refractive index. The frequency of light travelling through a material affects its refractive index. The highest frequencies have highest values of n. For instance, the refractive index of violet light is roughly 1% higher than that of red light in common glass.

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What is the magnitude of the acceleration of the space station as the astronaut is pushing off the wall?

Question Parameter(s):

The International Space Station has a mass of 1.8 × 105 kg. A 70.0-kg.

The station pushes off one wall of the station so she accelerates at 1.50 m/s2.

Generally, the equation for the  Force is mathematically given as

F = ma

Therefore

F = 70(1.50)

F= 105 N

In conclusion, the space station force

F = ma

105 = 1.8 * 10^5 a

a = 5.83 * 10^{-4} m/s^2

Answer:

Primary cell:

Secondary cell:

The rotational inertia of a merry-go-round connects the torque produced by one to the angular acceleration that results.

Any item with the ability to rotate possesses rotational inertia. It is a scalar value that indicates how challenging it is to alter the object's rotational speed around a specific rotational axis. Similar to the role that mass plays in linear mechanics, rotational inertia plays in rotational mechanics.

Rotational inertia, also referred to as the inertia moment is the resistance of an item to a change in rotation. Rotational inertia can be felt and seen in many commonplace situations, such as when using a heavy baseball bat or pushing a large group of people on the a merry-go-round.

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If the total kinetic energy of the hoop is to be 0.111 J, then the hoop's linear speed must be 1.24 m/s.

What is kinetic energy ?

kinetic energy is a form of energy that an particle has by reason of it's motion. If we want to accelerate an object then we must apply a force. The average kinetic energy of all the molecule assumed to be directly proportional to the absolute tempreture of the gas.

The Kelvin tempreture of a substance is directly proportional to the average kinetic energy of the particles of the substance.

This is the reason why measure of the average kinetic energy of the molecule of a material called tempreture.

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The correct answer is the movement of the ball because of conversation into kinetic energy.

Why here potential energy is changed to Kinetic energy?

The ball's stored potential energy becomes kinetic energy as it begins to move and rolls down the slope. The movement of the objects is caused by this kinetic energy.

Due to its height above the ground, the ball has gravitational potential energy when it is at the top of a hill.

Due to its velocity as it rolls down the hill, the potential energy is changed into kinetic energy.

Hence due to the ball's collision with the wall, it abruptly stops, converting its kinetic energy into internal energy.

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The statement above is true. Integration is the total number of x-rays emitted from its tube, which is determined by adding together the number of x-rays emitted at each energy over the entire spectrum.

An X-ray is a penetrating form of electromagnetic radiation. It is usually used in the medical world to produce pictures of the body's internal structures. An X-ray tube is a tube that converts electrical input power into X-rays.

In the x-ray machine, the x-ray tube emits x-rays that would be used for certain purposes. To count how many x-rays got emitted by the x-ray tube, one can add all the numbers of emitted x-rays at each energy over the entire spectrum.

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The object falls to the ground after 1.56 second.

Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).

Given parameters:

Height from where the object fall; h = 12 meters.

Let initial velocity is zero.

And we know that,

acceleration due to gravity is 9.8 m/s².

So, h = 1/2 gt²

⇒ t = √(2h/g) = √(2×12/9.8) second = 1.56 seconds.

Hence,  it take 1.56 second for that object to fall to the ground.

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A parallel capacitor's geometrical characteristics determine its capacitance. the separation of the plates. The capacitance reduces as the distance between the plates grows.

Farad, denoted by the letter F, is the SI unit for electrical capacitance. In large part, the unit bears the name of English physicist Micheal Faraday. The capacity of a body or thing to hold an electrical charge is often referred to as farad. The SI base units used to describe it are s4A2m-2kg-1.

They are effective at lessening voltage pulsation. The capacitor is charged in a parallel circuit when a positive voltage is applied, and it discharges when a low voltage is applied. While most electronic circuits use DC, the electricity that comes out is AC.

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If two balls are projected with initial velocity v and 2v respectively, the ball that is projected with a velocity of 2v would reach the ground first.

The term projectile has to do with the kind of motion that uses a parabolic path. The parabolic path is a path that is curved. For instance, if you trough a ball from one point to the other, the ball does not follow a straight path, the path of the ball is curved.

The time that it takes for the ball to reach the ground from the point of projection is dependent on the initial velocity of the ball. Thus, if the ball has been projected with a higher initial velocity then the ball would reach the ground faster and vice versa.

Thus, given that the velocity 2v is twice the velocity v, the ball that is projected at this velocity would reach the ground first.

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n can have any positive whole number, the lower the value of n, the greater the probability that the electron is closer to the nucleus.

Atomic nuclei include electrically superb protons and electrically neutral neutrons. those are held together with the aid of the strongest regarded fundamental pressure, called the robust force. The nucleus makes up lots much less than. 01% of the volume of the atom, but commonly contains more than 99.9% of the mass of the atom.

A nucleus is a group of debris referred to as protons, which are undoubtedly charged, and neutrons, which can be electrically neutral. Protons and neutrons are in flip made from particles referred to as quarks.

The nucleus controls and regulates the sports of the cellular (e.g., growth and metabolism) and consists of the genes, and systems that comprise the hereditary facts. Nucleoli are small in our bodies and are regularly seen inside the nucleus. The gel-like matrix wherein the nuclear components are suspended is the nucleoplasm.

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The conditions which would result in clockwise emf in loop are

a) The magnitude of B increases

c)The loop Rotates through 45 degrees about vertical axis

This all happens according to the right-hand thumb rule of electromagnetics. The EMF (Electro Motive Force) changes according to the movement of Loop as it is dependent on the motion which further connects to the right hand thumb rule as shown in the figure attached.

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Students are going to conduct an experiment to study the effect of a net force applied to an object on the object’s motion. In each trial of the experiment, the students will apply a net force on the object. They also need to take two other measurements. The other quantities they should measure in each trial of the experiment will be mass and acceleration

As we know that Force depend upon mass as well as acceleration , hence it is important to take measurements of mass and acceleration . Since ,

according to newton's third law

F = ma

where

m = mass

a = acceleration

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A super giant black hole is located at the center of our galaxy and the earth is located around 2,000 light years from this point.

Our galaxy is called milky way galaxy including solar system, planets and giant balls of gases.

When observed from earth it looks like hazy spectrum of light emitted by the billions of stars present in the galaxy.

However, at the center of our galaxy, there is a giant super giant black hole which is just 2,000 light years away from the earth.

New scientific evidence shows that the black hole sits around 25,800 light-years from the planet earth.

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