the spectrum of a very distant galaxy shows features due to carbon, silicon, and sulfur. the presence of these elements in the spectrum tells astronomers that

We think that it once had huge amounts of water content in its atmosphere.

The Solar System is the gravitationally bound system that includes the Sun and the objects that orbit it. It was formed by the gravitational collapse of a massive interstellar molecular cloud 4.6 billion years ago. The Sun contains the vast majority (99.86%) of the system's mass, with Jupiter holding the majority of the remaining mass. Mercury, Venus, Earth, and Mars are all terrestrial planets made mostly of rock and metal. The four outer system giant planets are significantly larger and more massive than the terrestrials. Jupiter and Saturn are gas giants, composed primarily of hydrogen and helium; Uranus and Neptune are ice giants, composed primarily of volatile substances with relatively high temperatures.

Hence, If Deuterium is more abundant on Venus than elsewhere in the solar system, I think that it once had huge amounts of water content in its atmosphere.

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Answer:

for identifying elements in a sample

for determining the distance and velocity of galaxies

for producing neon lights

for determining types of chemical bonds

for use in medical imaging devices

Explanation:

I hope this helps. :)

Answer:

Pressure = 223 kPa

Explanation:

Given:

p₁ = 112 kPa = 112 000 Pa

t₁ = 35°C;    T₁ = 273 + 35 = 308 Pa

t₂ = 340°C;    T₂ = 273 + 35 = 613 Pa

V - const

___________

p₂ - ?

Charles' law:

p₁ / T₁ = p₂ / T₂

The pressure:

p₂ = p₁·T₂ / T₁

p₂ = 112 000·613 / 308 ≈ 223 000 Pa   or  p₂ = 223 kPa

It will take the lightbulb 2875 seconds to use  2.3×10⁵J of energy.

Power is the amount of work completed in a given amount of time, or time spent working. The joules per second (J/s)-based SI unit of power is the Watt (W).

Given,

Power (P) = 80 J/s

Energy (E) = 2.3×10⁵ J

Time (t) = ?

The pace at which energy is utilized is a straightforward definition of power. Power can be mathematically stated as:

Energy x time equals power

P = E/t

We can calculate the time it takes for the bulb to use 2.3 105 J using the formula above. This is attainable as follows:

Power (P) = 80 J/s

Energy (E) = 2.3×10⁵ J

Time (t) = ?

Power = Energy / time

P = E/t

80 = 2.3×10⁵ /t

80 × t = 2.3×10⁵

Divide both side by 80

t = 2.3×10⁵ / 80

t = 2875 s

As a result, it will take the lightbulb 2875 seconds to use  2.3×10⁵J of energy.

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Complete question is "A light bulb consumes energy at a rate of 80joules per second . How long in seconds will it take for the light bulb to consume  2.3×10⁵in energy?".

Area in physics can be found by division of the area into simple figures such as triangles, rectangles and trapezoids and offsets from a straight line.

Area is a measure of how much space is there inside a shape and calculating the area of a shape or surface can be useful in everyday life.

The amount of surface a two-dimensional shape can cover which is measured in square units is called area and the SI unit of area is the square meter.

Area = length x breadth and  Area = π × radius × radius - formulas can be used for finding area of different quadrilaterals.

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The net displacement of a point on the blade's rim as a result of the deceleration is 10.0 in. or 0.254 m..

In reality, the term "deceleration" refers to an acceleration that has been reversed. We are aware that deceleration is the rate at which an object slows down and that acceleration is the pace at which an object accelerates. For instance, when we apply the brakes while driving, we are employing the benefits of deceleration to lower the speed of the car.

When we sense ourselves going forward in relation to the car while driving, we are decelerating. Deceleration in this context is a specific case of acceleration that only applies to moving things. It is hence the speed at which an object slows down.

Since acceleration must be reported as both a magnitude and a direction, it is a vector. Whenever there is one-dimensional motion.

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Inelastic collision The total momentum of the system prior to the collision was 22 361 kg*m/s, and as momentum is conserved, it is also the total momentum of the system following the collision.

The system's overall momentum is distributed equally among all of the automobiles due to their equal mass. In an inelastic collision, as opposed to an elastic impact, internal friction prevents the conservation of kinetic energy. Is called inelastic collision.

Momentum, also known as linear momentum, translational momentum, or simply momentum in Newtonian physics, is the result of an object's mass and velocity. It has a direction and a magnitude, making it a vector quantity.

final to original total momentum is equal to 22361/22361, which is 1.

therefore beginning and ultimate momentum are equal.

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Answer:

Explanation:

b

Answer: The correct answers are B and C. :)

Explanation:

What Fiona did, so her friend could find the stars was to give her friends knowledge about the contents of the sky, such as the shape of planets and stars. Then when you want to see the stars, you have to stay away from light pollution, so the stars can be seen clearly.

Stars are celestial bodies that emit light caused by nuclear fusion reactions that produce energy that occurs in their cores. It should be noted that 'pseudo stars' are not stars, but planets that reflect light from other stars and appear to glow in the sky like a star. A planet or planetary star is an astronomical body orbiting a star or stellar remnant that is massive enough to have its own gravity.

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Unless the above assumptions are clear, the initial and final energies are equal.

Kinetic energy is the form of energy that an object or a particle possess due to its motion. If work, that transfers energy, is done on an object by applying a net force, the object accelerates and thereby gains kinetic energy. Kinetic energy is a property of a moving object or particle and depends on its motion as well as its mass. The type of motion may be translational (or motion along a path from one place to another), rotational, vibrational, or any combination of motions. Translational kinetic energy is one-half the product of its mass (m) and the square of its velocity (v) or 1/2mv².

Given,

Initial and final velocities = v₁ and v₂

Initial kinetic energy = [tex]\frac{1}{2} mv_{1} ^{2}[/tex]

Final kinetic energy = [tex]\frac{1}{2} mv_{2} ^{2}[/tex]

Gravitational potential energy is calculated = mgh

As the assumptions are not clear, this question assumes no air resistance. As a result, no energy is consumed by work.

then

Initial Kinetic Energy = Final Kinetic Energy

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We can conclude that Recognizing herself. The process of reflecting light rays that fall on a polished surface is known as reflection of light.

It assists us in gaining understanding and determining how to proceed. The wave front returns to the medium from which it originated is referred to as reflection. Reflection of light, sound, and water waves are common examples.

Reflection is the process of investigating and analyzing oneself, one's perspectives, characteristics, experiences, and actions / interactions. It assists us in gaining understanding and determining how to proceed.

The process of reflecting light rays that fall on a polished surface is known as reflection of light. The angle of reflection is always equal to the angle of incidence, according to reflection laws. (ii) The incident, reflected, and normal rays all lie in the same plane.

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Recognizing herself, we can infer. Reflection of light is the process of reflecting light rays that strike a polished surface.

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The infrared image would reveal radiation coming from all around Earth, whereas the ultraviolet image would only show artificial sources like lighting.

There are numerous uses for infrared. Heat sensors, thermal imaging technology, and night vision gear are some of the most popular. Infrared light is used in both wired and wireless communications and networking operations.

To avoid Earth's atmosphere and obtain a clearer view of the planets, stars, and galaxies that we are studying, space telescopes are primarily launched into orbit. Only some light can enter our atmosphere because it acts as a barrier, blocking all other light.

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The thermal energy was generated by friction is 180490.52J.

Molecules moving within an item or substance are referred to as thermally moving. The sun is the main source of thermal energy in our solar system, but every material possesses some form of thermal energy. Heat is a flow of thermal energy that occurs when energy is transferred from one substance or object to another.

Given,

Initial speed = 114km/h = 114000/3600 = 31.66 m/s

Height = 25m

[tex]E_{intial} = E_{final}[/tex]

mg[tex]y_{i}[/tex] + 1/2m[tex]v^{2} _{i{} }[/tex] = mg[tex]y_{f}[/tex] +1/2m[tex]v^{2} _{f{} }[/tex]

Solving [tex]y_{f}[/tex] we have,

[tex]y_{f}[/tex] = m(g[tex]y_{i}[/tex] + 1/2m[tex]v^{2} _{i{} }[/tex]-1/2m[tex]v^{2} _{f{} }[/tex])

[tex]y_{f}[/tex] = (0+ 1/2 (114×1000/60×60)²-0)/9.8

[tex]y_{f}[/tex] = h = 50.94m

loss of energy = mg (50.94 - 25)

loss of energy = 710× 9.8× 25.94

loss of energy = 180490.52J.

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It's true that air resistance is really low. Energy must not be gained or lost during the experiment if they expect to demonstrate that energy is conserved. In other words, there must be little loss from air resistance.

Air is the source of the force known as air resistance. An object travelling through the air experiences the force in the opposite direction. A sports vehicle with a streamlined form will face less air resistance than a lorry with a flat front, enabling the latter to travel faster.

The force of air resistance changes depending on the velocity. This implies that the acceleration is not constant and neither is the force. That is a serious issue.

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A heavy weight suspended within a moving box needs to overcome inertia, resulting in a slight delay in the motion of the weight after the box moves. Option B.

The principle underlying the construction of a seismometer is to have a heavy weight suspended from a spring on a pedestal or inside a movable box. A seismograph is an instrument that records and measures the details of an earthquake. A seismograph uses a seismograph to record data.

Elastic deformation bends an object, whereas repulsion returns it to its original shape. This instrument is nothing more than an oscillating rod or pendulum that begins to vibrate when a tremor occurs. The vibration system has a pin. The pen records seismic waves on a sheet of paper that moves underneath. By studying these waves scientists can create a complete map of earthquakes.

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The transmitters operate between 190 and 535 kHz, have a range of at least 15 miles, and have a power of less than 25 watts.

The localizer course is typically 5°, which is fairly narrow. High needle sensitivity follows from this. When the airplane is 2.5° to either side of the centerline with this course width, a full-scale deviation is visible. This sensitivity enables precise alignment to the runway for landings.

Operating between the frequencies of 108.10 MHz and 111.95 MHz, the localizer transmitter uses one of the 40 ILS channels. Signals give the pilot direction to the middle of the runway.

An instrument landing system is a precise runway approach device that uses two radio beams to give pilots horizontal and vertical guidance as they approach the landing. The glideslope (GS) defines the proper vertical descent profile, while the localizer (LOC) offers azimuth guidance.

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Given that A was stiffer than B (KA > KB), the force given to both springs is the same for A, whose spring constant is higher than B's but whose expansion is smaller, and whose work will thus be less than B's.

The equilibrium length of a perfect spring exists. When a spring is squeezed, a force pushing each end apart has a magnitude proportional to the length drop from the equilibrium length.

Hooke aimed to show how a spring's elasticity and the forces acting on it are related. According to Hooke's Law, a spring's extension is proportional to the load placed on it. As long even as load does not exceed a material's elastic limit, a variety of materials abide by this rule.

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The distance between the poles is 46 m.

Given information indicates that the two towers are 50 meters tall and that the cable is 80 meters long. The midpoint of the cable, designated as h, is 10 meters above the ground.

Let the height be y and the distance from the midpoint to either tower be x. therefore by catenary equation, we get,      

                              y=hcos(x/h)

                            =>50=10cos(x/10)

                  Therefore  5=cosx/10

By the tabulated value from the hyperbolic cosine function, we get the value of

                          cos⁻¹(5)=x/10

                         =>2.3=x/10

                         =>x=23

Therefore the distance between the poles is 2x = 2 x 23 = 46 m.  

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We first apply the data to the problem.

Data:

Now, we convert the minutes to hours.

Conversion:

Then, we apply the formula that is.

Formula:

Finally we develop the problem.

Developing:

The distance traveled by the kangaroo is 30 kilometers.

Answer: the coefficient would be either 4 or 5

Explanation:

If a person is forced to utilize self-defense, the offensive techniques that should be recommended are as follows:

I would advise them to employ the following defense strategies:

Based on the films, the move(s) that appear to be the most successful for the offense in a circumstance requiring self-defense are to target the problem rather than the person.

An aggressive competitive strategy is a form of company strategy that involves actively pursuing industry changes.

Companies that go on the offensive typically make acquisitions and invest extensively in R&D and technology in order to remain ahead of the competition.

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When it will pass through our Earth, it will contain the whole of our earth as its gravitational field is so high.

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When it will pass through our Earth, it will contain the whole of our earth as its gravitational field is so high.

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The dog that leans to associate the bell with salivation and food is a case of classical conditioning.

The idea of classical conditioning is that the individual is able to link up the unconditioned stimulus to the conditioned stimulus. This implies that the organism has been taught to link up a particular stimulus with another.

Let us at this point recall the famous experience in the experiment of Pavlov. In this case, we know that a dog would always salivate if the dog smells the approach of food coming towards it.

Imagine that we now have to ring a bell when we are bringing the food to the dog. So much so that the dog has been able to link up the bell with the fact that the food is approaching.

It comes to a point that the dog would now salivate just at the sound of the bell even when the food is not in sight.

Hence, in this case, the  unconditioned stimulus is the salivation while the conditioned stimulus is the bell that causes the salivation.

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1.When two objects collide, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to accelerate (gain speed) and another object to slow down (lose speed).

2. The effect of the forces experienced on the objects during the collision is different if the masses of the objects are different. The same  force causes different changes in velocity for objects with different masses. An object with a smaller mass has a greater change in velocity when the same force is applied.

A collision means that two objects collide with each other for a very short time. In other words, a collision is the interaction of two masses in a very short period of time, where the momentum and energy of the colliding masses change.

The law of conservation of momentum usually applies to collisions between two masses, but some collisions may involve kinetic energy. Depending on the conservation of energy there can be two types of conservation:

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If A ball is at rest, the moving ball's velocity vector must point to the center of the stationary ball.

A velocity vector shows the rate of change in an object's position. The magnitude of a velocity vector represents an object's speed, whereas the vector's direction represents an object's direction. Velocity vectors can be added or removed in accordance with the principles of vector addition. the velocity vectors' length.

If we just state that a car is moving at 70 km/h, we have not fully described its motion because we have not stated the direction in which it is moving. Thus, a vector quantity such as velocity is an example.

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The subject tested alone would yield better findings and higher alpha values than the subject evaluated in a lab with several pupils.

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The ring would finish at last in the race down the incline.

Incline is a a plane surface tilted at some angle from the horizontal.

The moment of inertia of the ring = [tex]mr^{2}[/tex]

The moment of inertia of the disc = ( [tex]mr^{2}[/tex] ) / 2

The moment of inertia of the solid sphere = 2( [tex]mr^{2}[/tex] ) / 5

Since the moment of inertia is the resistance to rotational motion, we see that the object with the smallest moment of inertia will reach the bottom first.

The gain in total kinetic energy is equal to the loss in gravitational potential energy, which in turn is the same for all the objects and is equal to 'mgh'

where h is the height of the inclined plane.

So the order of reaching the bottom is Sphere, disc and ring.

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When Jasper uses the same amount of force to move a tennis ball and a bowling ball, d)the tennis ball will have a greater change in motion.

Newton's second law states that an object's net force is equal to the sum of its mass and acceleration.

F = ma is the formula, where F denotes force, m denotes mass, and a denotes acceleration.

When the force F is constant and we rearrange the equation, we get acceleration as a = F/m. We know that acceleration is inversely linked to the mass m. Greater mass results in smaller acceleration, and conversely, smaller mass results in greater acceleration.

We know that mass of bowling ball is more than tennis ball.

Tennis ball > bowling ball will have the highest rate of acceleration since the relationship between acceleration and mass is inverse.

It follows that tennis balls will accelerate their change of direction more quickly than bowling balls.

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40.47 m/s is the speed of the arrow leaving the bow. When 0.0850 kg arrow fired horizontally, and If bowstring exerts average force of 89.0 N on the arrow over distance of 0. 782 m.

The primary indicator of object's position and speed is its velocity. It is distance that object travels in one unit of time. Displacement of item in one unit of time is definition of velocity.

By Newton's second law of motion,

F = ma

m is the mass of the arrow (kg) = 0.0850 kg

a is the acceleration of the arrow (m/s²)

F is the force applied (N) = 89.0 N

F= ma

a = F/m

a = 89.0/ 0.0850

∴ a= 1,047.059 m/s²

Now, object have acceleration, and the object will move in non-uniform motion. so the formula applied is:

[tex]v_{t}[/tex] = [tex]v_{0}[/tex] + at

[tex]v_{t}^{2}[/tex] = [tex]v_{0}^{2}[/tex] + 2×a×d

∴ d = [tex]v_{0}[/tex]×t +1/2× a ×t²

here,

[tex]v_{0}[/tex] = initial speed (m/s) = 0 m/s (arrow stationary in bowstring)

[tex]v_{t}[/tex] = final speed (m/s)

a = acceleration (m/s²) = 1,047.059 m/s²

t = interval (s)

d = distance (m) = 0.782 m

[tex]v_{t}^{2}[/tex] = [tex]v_{0}^{2}[/tex] + 2×a×d

[tex]v_{t}^{2}[/tex] = 0² + 2 × 1,047.059 × 0.782

 [tex]v_{t}^{2}[/tex] = 1637.6

[tex]v_{t}[/tex] = [tex]\sqrt{1637.6}[/tex]

[tex]v_{t}[/tex] = 40.47 m/s

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