which projectile spends more time in the air, the one fired from 30∘ or the one fired from 60∘?

Iron meteorites are supposed to be similar to the earth's core in composition.

This implies that similar abundances should have been present in the Earth's core given that iron meteorites are regarded to be equivalent to the development of planetary cores. These meteorites can be grouped into three primary categories by scientists: stony, iron, and stony-iron. These kinds all have numerous sub-groups.

Brutal Meteorites Minerals that contain silicates—a substance consisting of silicon and oxygen—make up stony meteorites. They also contain iron and nickel, two metals. The core is almost entirely comprised of metal, notably iron and nickel, in contrast to the crust and mantle, which are rich in minerals. Iron-nickel alloys found in the core are denoted by their chemical symbols, NiFe.

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The explicit relationship between x and y.0 < t < 2, y = 3 + 2x, x = -t, y = 3 - 2t is y = f(x)

An explicit function is one that is modeled with an independent variable. The statement y = 4x - 7 is explicit when y is a dependent variable and depends on the independent variable x, for example. An explicit function is one that has many variables, one of which is a function of another set of variables.

In an explicit algebraic function, the dependent variable can be stated directly in terms of the independent variable. To distinguish between ideas that are explicitly stated and those that are indicated in writing, the phrases explicit and implicit are used. Whether or not the relationship between the sentences is explicit determines how transition words and phrases should be used (stated).

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Answer:

2200 m (the volume of the displaced seawater multiplied by the density of seawater).

Explanation:

The volume of the displaced water can be calculated using the formula V = (d*A), where V is the volume, d is the depth, and A is the area of the bell. Therefore, V = (220 m * A). The amount of water that has to rise in the bell is then equal to the mass of the displaced seawater, which can be calculated using the formula m = (d*A*ρ), where ρ is the density of seawater. Therefore, m = (220 m*A*1025 kg/m3). Finally, the height of the seawater in the bell can be calculated using the equation h = (m/ρ), which gives h = (2200 m).

Kinetic energy of object is an energy which is possessed due to motion.

Examples of kinetic energy,

Before a football has been struck shows zero kinetic energy as its velocity is zero.

When an shooting star falls at an lighting speed, it has a huge amount of kinetic energy.

The formula for kinetic energy is

KE = ½ mv²

The SI unit of kinetic energy is Joule,which is precisely 1kg.m².

If we say that the particle speeds increases by a factor N, then the mass is not changing and we keep the mass constant.

The increase in speed is by the factor of 4 as given in the question.

KE = v²

As mass is constant

KE = (4N)²

KE = 16N

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Answer:

2.06ms^-2

Explanation:

Fr = 0.8N, Fa = 6.0N, a = ?

Where Fr is the frictional force

" Fa is the Applied force

First you have to find the Net force(Fn)

Fn = Fr + Fa

Fn = 0.8 + 6.0

Fn = 6.8N

Fn = ma

Making acceleration subject of the formula

a = Fn/m

a = 6.8/3.3

a = 2.06060

therefore a = 2.06ms^-2

If intensity is energy per unit area per unit time then how kinetic energy of photoelectron is constant with increasing intensity of light and it increases when frequency of light is increased

The amount of energy that a wave may transfer to a unit area of a surface each second is measured as the wave's intensity. (Watts per square metre are used to measure intensity.) A sound wave's frequency is equal to its rate of vibration, and its intensity is determined by its amplitude.

You may have the impression that the greater the frequency, the louder the noise we hear is, yet frequency does not indicate the volume of a sound. The energy of a vibration is quantified in decibels as intensity or loudness (dB). A sound has a high intensity if it is loud.

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The upward movement of air in the atmosphere generally causes the temperature of that air to decrease. This process is known as "adiabatic cooling," and it occurs because as air is lifted it expands and cools.

The adiabatic process is important because it helps to create temperature differences in the atmosphere that drive weather systems. When air is heated by the sun, it rises and creates an area of low pressure at the surface. As the air rises, it cools and creates an area of high pressure aloft. This temperature contrast creates a force that pushes the air back down to the surface, creating winds and driving weather patterns.

It's worth noting that not all the lifting of the air masses always leads to cooling, it can also lead to heating. This happens when air is lifted and expands but still holds the same temperature, or when it's lifting in a moist environment and the moisture condenses, releasing heat (latent heat), making the air warm up, this is called adiabatic warming or "adiabatic ascent"

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To solve this we must be knowing each and every concept related to variables. Therefore, because the evidence cards all represent variables, none of them should be deleted.

A variable is any trait, characteristic, number, or quantity that changes over time or may take on different values in different contexts (as contrast to constants, such as n, which do not change).

Magnetic pole configuration is a variable since its values can vary.

The quantity of coils is indeed a variable since it might have several numbers.

Rail material is indeed a variable since its values might vary.

The distance between the automobile and the launcher is flexible since it might take various values.

Therefore, because the evidence cards all represent variables, none of them should be deleted.

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As the bag was at rest, its initial momentum is zero. a) The momentum after the collision is 5 Kgms-1 ; b) The momentum before the collision is 0.1 Kgms-1 and the velocity of the bullet ​and the velocity of the ball before collision is 500 ms-1.

The term momentum refers the product of mass and velocity. If mass of the object and its velocity are known , then we calculate the momentum.

Given a bullet of mass 0. 01 kg and sandbag of mass 0. 49 kg

Momentum before the collision of bullet = 0.01 kg × v

=0.01 * 10

= 0.1 Kgms-1

Momentum before the collision for bag = 0

Momentum after collision of bag and bullet = (0.01 kg  +  0.49 kg) 10 = 5 Kgms-1

Velocity of the bullet before collision =  0.01 kg × v + 0 =  5 Kgms-1

= 5 Kgms-1/0.01 kg

So, v = 500 ms-1

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Note: The question given on portal is incomplete. Here is the complete question.

Question : A bullet of mass 0.01 kg is fired in to a sand bas of mass 0.49 kg from a tree. The Sand bag with the bullet embedded in to it swings a way at lo m/s find a The momentum after the Collision b, The momentum before the Collision the velocity of the bullet ​

The statement of while loop get its name from the way it work and while a condition in the loop is read as false, the while loop will do some task is false because every condition (true or false condition) in while loop will always executed but the body which is not always execute.

While loop is one of the statement that used in the programming language, this statement is use to solve the problem that has certain condition to fulfill. While loop will execute the name or statement that are given as parameter then read the condition whether it is happen or not. When the condition is true, the while loop will execute programs that is written in its body, and if the condition is false, the will loop only read the parameter condition but did not execute the programs that is written in its body.

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Option a is Correct. Using a diffraction grating or a glass prism, it is possible to disperse the visible light from a far-off star into a spectrum.

To split polychromatic light into its underlying constituent wavelengths, diffraction gratings are optical components found in equipment like spectrometers. Diffraction gratings are periodic optical components that divide light into several beams that move in diverse directions. It is a different approach to using a prism to study spectra.

Usually, when light strikes the grating, the split light will have a maxima at an angle. The idea of diffraction explains how a diffraction grating can split a beam of different wavelengths into a spectrum of related lines, with only waves of a particular wavelength conserving energy in a given direction while all other waves being destroyed by interference.

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To create steam, geothermal power plants pump liquids from subsurface reservoirs to the surface. The steam is then used to power electricity-producing turbines.

The movement of electric energy or charge is known as electricity. It's a secondary energy source, meaning that we obtain it through the conversion of main energy sources like coal, nat gas, oil, nuclear power, and other natural sources.

There are instances when the protons and electrons inside an atom's outer shells are not strongly attracted to one another. It is possible to force these electrons out of normal orbits. They can move through one atom to the other by exerting force. Electricity is made up of these moving electrons.

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The force exerted on the tires of a car that directly accelerate it along a road is exerted by the road friction. Hence the correct Option is D. road .

Force is defined as the product of mass and acceleration of an object.

F = m a ; where F is the defined force.

where,

m= mass

a = acceleration

Friction is defined as the force that resists the movement of an object over another.

Therefore, the force exerted on the tires of a car that directly accelerate it along a road is exerted by the road friction.

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In order to bring down that car in 6.0 seconds, twice as much force is needed.

The definition of the word "force" is obvious. It is quite acceptable to refer to a force of this level as a push or a pull. Strength is not something that something "is in there" or that something "contains." A force is applied to one thing by another. The idea of a force encompasses both living & non-living things.

Energy is an operation on something other than a body, whereas power is the interaction of two bodies. The main difference between the two ideas is this. Power, on the other hand, is the amount of energy needed when an activity is carried out over the body.

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The lens has a +2.5 diopter power at a focal length of 40 cm and a diameter of 5.0 cm. The correct option is (D).

The power of a lens is a measure of its ability to bend light and is measured in diopters (D). It is defined as the reciprocal of the focal length (f) of the lens in meters.

P = 1/f

Given that the focal length of the lens is 40 cm = 0.4m, the power of the lens can be calculated as:

P = 1/f = 1/0.4 = 2.5 D

It is important to note that the diameter of the lens has no effect on the power of the lens. Power depends only on the focal length of the lens. So the answer is D) +2.5 diopters.

It also worth mentioning that if the focal length is negative, that means the lens is a diverging lens and the power will be negative.

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The speed of the third piece when a dinner plate falls vertically to the floor and breaks up into three pieces, which slide horizontally along the floor is 5.335m/s

Given mass of first piece (m1) = 200g = 0.2Kg

speed of first piece(v1) = 2m/s along x axis

mass of second piece (m2) = 235g = 0.235kg

speed of second piece (v2) = 1.50m/s along y axis

mass of third piece (m3) = 100g = 0.1kg

speed of third piece be v3

From conservation of momentum we say:

Along x axis Px = m1v1 + m2v2 + m3v3

Px = 0.2 x 2 + 0 + 0.1 x v3 = 0.4 +0.1v3

v3 = -0.4/0.1 = -4m/s

Along y axis Py = m1v1 + m2v2 + m3v3

Py = 0 + 0.235 x 1.5 + 0.1 x v3 = 0.3525 + 0.1v3

v3 = -3.525m/s

By comparing the two equations we have the resultant speed as :

(-4) ^2 + (-3.525)^2 = 5.335m/s

Hence the speed of third particle is 5.335m/s

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When a dinner plate breaks into three pieces and slides horizontally along the floor after falling vertically to the ground, the third piece moves at a speed of 5.335 meters per second.

mass of first piece (m1) = 200g = 0.2Kg

speed of first piece(v1) = 2m/s along x axis

mass of second piece (m2) = 235g = 0.235kg

speed of second piece (v2) = 1.50m/s along y axis

mass of third piece (m3) = 100g = 0.1kg

speed of third piece be v3

From conservation of momentum we say:

Along x axis Px = m1v1 + m2v2 + m3v3

Px = 0.2 x 2 + 0 + 0.1 x v3 = 0.4 +0.1v3

v3 = -0.4/0.1 = -4m/s

Along y axis Py = m1v1 + m2v2 + m3v3

Py = 0 + 0.235 x 1.5 + 0.1 x v3 = 0.3525 + 0.1v3

v3 = -3.525m/s

By comparing the two equations we have the resultant speed as :

(-4) ^2 + (-3.525)^2 = 5.335m/s

Hence the speed of third particle is 5.335m/s.

The mass of an object is a measure of how much matter makes up that object. The gravitational pull of an object is measured in weight, a unit of force. While mass is location independent, weight depends on location.

What it refers to is speed. the rate at which the location of an object shifts in any direction. Speed is defined as the ratio of the distance traveled to the time required to cover that distance.

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THE ANSWER BELOW THE PICTURES.

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The magnitude and direction of its velocity immediately after the explosion is 123.5deg from either side and its velocity is 20.8m/s.

Given Initially, the vessel having mass m is at rest.

The speed of pieces = 31.4m/s

Let the total mass of vessel = m

Let the mass of first piece = x, second piece = 2x and third piece = 3x.

According to the question, x+2x+3x=m ⟹x=0.16m

Thus the masses of the three fragments be 0.16m,0.32m and 0.48m

Let the third fragment fly off with velocity v making an angle ϕ.

Conservation of momentum in y-direction :

0.48m(vsinθ)=0.16m(31.4)

Conservation of momentum in x-direction :

0.48m(vcosθ)=0.32m(31.4) then we get,

0.48m(vsinθ)/0.48m(vcosθ) = 0.16m(31.4)/0.32m(31.4)

tanθ = 1/2 hence θ = 26.5deg

ϕ = 180 − 26.5 = 123.5deg

Squaring and adding the above equations we get,

0.48(mv)^2(sin^2θ+cos^2θ) = [0.16m(31.4)+0.32m(31.4)]^2

0.48(mv)^2(1) = [14.44m]^2

v = 20.8m/s

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Its magnitude and direction immediately following the explosion are 123.5 degrees from either side and 20.8 meters per second.

The mass of the vessel, m, is initially at rest.

Pieces move at a rate of 31.4 m/s.

Let m be the vessel's overall mass.

Let the masses of the first component be x, the second piece be 2x, and the third piece be 3x.

The answer is x+2x+3x=m x=0.16m.

Therefore, the three fragments' masses are 0.16m, 0.32m, and 0.48m.

Allow the third component to depart with velocity v and an angle.

Conservation of momentum in the y-direction: 0.48m(vsin)=0.16m (31.4)

Conservation of momentum in the x-direction: 0.48m(vcos)=0.32m(31.4), therefore we get 0.48m(vsin)/0.48m(vcos)=0.16m(31.4)/0.32m (31.4)

tan = 1/2, thus = 26.5deg = 180 26.5 = 123.5deg

By squaring and combining the aforementioned equations, we arrive to 0.48(mv)2(sin(2)+cos(2)) = [0.16m(31.4)+0.32m(31.4)].

^2\s0.48(mv)^2(1) = [14.44m] .44m]

^2\sv = 20.8m/s

The velocity vector's magnitude indicates the object's current speed. The object's motion is roughly parallel to the direction that the velocity vector points.

The vector's length represents its magnitude, and its direction indicates where it points. Although vector direction can be expressed in a number of ways, degrees are the most frequent notation. Examples of vectors are velocity and acceleration.

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The complete equations are:

The difference that might exist between any two points. The amount of work required to move a unit positive charge along any path from one point to another without accelerating is referred to as the electric field.

The external effort required to move a charge in an electric field from one position to another is known as an electric potential difference or voltage.

Therefore, the formula are:

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The angle at which the force is directed if its horizontal component is 10 N and the vertical component is 15 N is 56°.

The horizontal component of a force is the force that acts in the horizontal direction while the vertical component of a force is the force that acts in the vertical direction.

Then, the horizontal component of the vector is given by the cosine of the angle of the force.

The vertical component is given by the sin of the force.

For the given forces;

The angle between them, tan θ = 15/10

θ = 56°

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Matter from space can condense to form a nebula or matter from a star can explode to form a nebula.

The nebula is made up of dust and gas, most of which are Helium and Hydrogen gases. Dust and gas in the Nebula spread easily, but due to the gravitational pull, these clumps of dust and gas slowly coalesce. The bigger the lump that is produced, the stronger the gravitational pull.

Finally, the resulting lump of dust and gas becomes very large and explodes under its gravity. The collapse of this gas column causes the substance at the center of the cloud to heat up. Later this hot nebula core will become a new star.

Complete questions:

Matter from space can ____ to form a nebula or matter from a star can____ to form a nebula.

The correct choice is B and C

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The force acting here is 871 N. And the time take for displacement is 3.54 seconds. The Then the velocity is 34 m/s against the acceleration due to gravity.

Velocity is the measure of distance covered within the unit time. The force according to second law of motion is the product of mass and acceleration. Where acceleration is the rate of change in velocity.

Power = force × time

thus, time of run = power/ force

= 3087 / 871 N = 3.4 s

The force acting here is the normal force by its own weight , so that the acceleration is 9.8 m/s².

Then velocity = 9.8 m/s² × 3.4 s = 34 m/s.

Therefore, the velocity of the running person is 34 m/s.

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Every 1,580 days (4.33 years), 2004 TL10 completes one circle around the sun. Its distance from the sun orbit from 0.91 AU to 4.39 AU. Considering its brightness and how it reflects light,

Along with rotating, often rather erratically, the asteroids tumble through their elliptical orbits around the Sun. More than 150 asteroids are known to have a small companion moon (some have two moons).

A: Due to the way our solar system evolved, the planets of our solar system orbit the Sun in a counterclockwise manner (as viewed from above the Sun's north pole). A cloud of gas and dust gave birth to our Sun, and its byproducts, the solar nebula, later gave birth to the planets.

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To increase the amount of work done by a heat engine, changes can be made in the transfer of energy in the form of heat to the engine.

This must include the following changes to the engine:

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The current drawn by the light bulb of power 150 W is 1.36 A

The power of a light bulb = 150 W

The light bulb will operate with a voltage of 110 V

The current that will be drawn by the light bulb can be found using the formula,

             P = VI

where P is the power of the bulb

           V is the voltage at which the bulb will operate

           I is the current drawn by the light bulb

Let us rearrange the above equation in order to get the value of the current,

             I = P/V

Let us substitute the known values in the above equation, we get

            I = 150 / 110

              = 1.36 A

Therefore, the current drawn by the light bulb is 1.36A  

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Answer:The initial position of the car was x = -245 + 103 = -142 m.

Explanation:

To solve this problem, you need to reverse the displacement by adding it to the final position. The displacement of -103 m takes the car from its initial position to its final position at x = -245 m, so to find the initial position, you need to reverse this displacement by adding it to the final position. This gives you the initial position of the car, which is x = -245 + 103 = -142 m.

The angular acceleration produced (a) when no one is on the merry-go-round is 6.67 rad/s. b)  when an 18.0-kg child sits 1.25 m away from the center is 4.44 rad/s

We have M = 50 and R = 1.50

Then we have to solve for the moment of Inertia

I = 0.5 * 50 * 1.5²

I = 56.25 kg/m²

R * F = 1.5 * 250

= 375

angular acceleration at A = 375 / 56.25

= 6.67 rad / s²

b. α * ( {50*1.5*1.5/2} + {18*1.25*1.25} ) = 1.5*250

This would have to be the total moment of inertia of this child as well as the merry go round.

= 375 / 84.38 kg

= 4.44 rad/s

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complete question

Consider the father pushing a playground merry-go-round. He exerts a force of 250 N at the edge of the 50.0-kg merry-go-round, which has a 1.50 m radius. Calculate the angular acceleration produced (a) when no one is on the merry-go-round and (b) when an 18.0-kg child sits 1.25 m away from the center. Consider the merry-go-round itself to be a uniform disk with negligible retar.ding friction.

Atmospheric perspective is a technique in art that conveys depth by modulating color, value, and texture to make distant objects appear hazy, bluish, and less distinct.

This technique is used to make objects in the background appear further away, as if seen through a misty or foggy atmosphere.

Atmospheric perspective is an important artistic technique that allows artists to create the illusion of depth in their work. By modulating color, value, and texture, distant objects appear blurred and less distinct, which gives the painting a more realistic and three-dimensional appearance. This technique is used in many different types of art, from landscape paintings to architectural drawings, and is essential for creating a realistic representation of the world.

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One centimeter is divided into 10 equally spaced portions that are designated by tiny lines on the ruler, which you can see if you look at it. A millimeter is represented by each line.  

Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in common usage.

Distance is the length of an object's real route in its entirety. The displacement of an object between two points is defined as the straight line (shortest) distance between those two points when directed from one position to another. The metre is the SI unit for measuring distance and displacement (m).

Thus, One centimeter is divided into 10 equally spaced portions that are designated by tiny lines on the ruler, which you can see if you look at it. A millimeter is represented by each line.  

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The x and y component of the force are 289.25 N and 344.72 N respectively.

The x and y component of the force is calculated by applying the following formula.

Fx = F cos ( θ )

Fy = F sin ( θ )

where;

The x component of the force is calculated as follows;

Fx = 450 N  x  cos ( 50 )

Fx = 289.25 N

The y component of the force is calculated as follows;

Fy = 450 N x  sin ( 50 )

Fy = 344.72 N

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