Why is light not classified as a matter?

The time taken for the first p-wave to reach the same seismic station is approximately 13 minutes.

In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.

v ∝ 1/t

v₁t₁ = v₂t₂

t₁/t₂ = v₂/v₁

t₁/t₂ = 0.6v₁/v₁

t₁/t₂ =  0.6

t₁ = 0.6t₂

t₁ = 0.6 x 22 mins

t₁ = 13.2 mins

Thus, the time taken for the first p-wave to reach the same seismic station is approximately 13 minutes.

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The options missing are;

A. Make only a few changes to the manipulated variable.

B. Identify any biases about the answer to the scientific question.

C. Include as many details as possible when writing the conclusion.

D. Share her ideas through peer review.

Answer:

B. Identify any biases about the answer to the scientific question.

Explanation:

Since the question is asking what can be done to improve the quality of the results, it means what can the scientist do to make sure that the result answers the question properly and has little or no biases.

Thus, looking at the options, the only one that comes close to actually improving on the quality of the results before finalizing is option B where the scientist is to identify any biases.

Answer:

on

Explanation:

when someone runs their hand is not really balanced when they wrote something

If a  student rolls a ball along the floor so that the ball has a speed of 16 m / s , then the speed of the ball relative to a second student would be 10 m / s if the student is running at 6 m / s in the same direction that the ball is rolling.

The total displacement covered by any object per unit of time is known as velocity.

If a student rolls a ball across the floor at a speed of 16 meters per second, the ball's speed in relation to a second student would be 10 meters per second if the second student is sprinting at a speed of 6 meters per second in the same direction as the ball is rolling.

Thus, the relative speed of the ball with respect to the student would be 10 m / s.

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Answer:

B

Explanation:

Because B/5

if i'm wrong sorry but i hope it's help^^

Answer: 8v

Explanation:

The total voltage drop across the first and second resistor is 8 V, hence option A is correct.

Voltage is the fluctuation in electric potential between the two places. It is sometimes produced by electric pressure, electric tension, or voltage source. The work required to move a test charge between two places in a static electric field corresponds to this. The derived measure for voltage in the International System of Units is called a volt. Work per unit energy is expressed in SI units as joules per coulomb, with 1 volt equaling 1 joule per 1 coulomb.

To detect the voltages between two locations in a circuit, use a voltmeter. A common reference point, like the system's foundation, is frequently utilized as one of the points.

A voltage can indicate either a supply of energy or its loss, dissipation, or storage.

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Answer:

B is the correct answer

Explanation:

Answer:

Explanation:

According to law of reflection of light ,

angle of incidence = angle of reflection

angle of incidence = i

angle of reflection = r

when angle of incidence increases to i₁ and angle of reflection becomes r₁

According to law of reflection,

i₁ = r₁

i₁ - i = r₁ - r

increase in angle of incidence = increase in angle of reflection .

So angle of reflection also increases .

Answer:

kya faltu sawal h repetitive g=10N/kg

Answer:

the great plague

Explanation:

Answer:

Follows are the soplution to this question:

Explanation:

In the given scenario it would be like a fluid in a simple harmonic in contact with the earth. Whenever a cheetah hops quicker, oscillatory amplitude rises, while the duration stays the same since it does not depend on frequency, which mostly means that time will be the same if you're in contact with the substrate.

Answer:

The velocity at which it hit the ground is  72.6 meters.

Explanation:

So,

h = 269 meters

u = 0 m/s ( 0 for a dropping object )

g = 9.8 m/s²

By Substitute the kinematic equation

  v² = u² + 2gh

  v² = 0 x 0 + 2 x 9.8 x 269

  v² = 0 + 5272.4 => 5272.4

  v =  √5272.4

  v = 72.6

Therefore the object is dropped from a height of 269 meters, it will hit the ground with a velocity of 72.6 meters per second.

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Answer: 2 i think

Explanation:

Answer:Im pretty sure its the second one because sound sometimes bounces back and that causes echo and it doesnt travel in one line or direction

Explanation:

The frequency of these waves is equal to 4.47 × 10¹⁴ Hertz.

In Science, wavelength can be defined as the distance between two (2) successive crests (troughs) of a wave.

Mathematically, the wavelength of a wave can be calculated by using this formula:

λ = V/F

Where:

Making the frequency of light the subject of formula, we have the following:

F = V/λ

F = 3.0 × 10⁸/6.7 × 10⁻⁷

Frequency, F = 4.47 × 10¹⁴ Hertz.

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Answer:

a law stating that electric current is proportional to voltage and inversely proportional to resistance.

ANSWER:

3) 1234 m

STEP-BY-STEP EXPLANATION:

Precision refers to how close two measurements are to one another. The highest number with a significant digit is the most precise, the number that has the most significant figures. Therefore, the less accurate is the opposite.

Which means that in this case, the least precise number is 1234 m.

Explanation:

Planets closer to the sun will appear to transit from time to time

   = 2      Venus and Mercury     ( I suppose you could include the Moon..an eclipse ....haha)

All of the planets further from the sun than earth will not transit

Potentially ALL of the planets could transit the sun (earth included)  if observed outside solar system   HOWEVER if you are not observing from near the orbital plane of

the planets NONE of them would transit

For maximum transits, the planets should all be in the same orbital plane and the observer should be very close to this plane also.

Answer:

please thanks

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Answer:4 miles

Explanation:

Answer: skeletal system and nervous systems

Explanation:

Many different body systems work together to perform daily functions in life. The skeletal system and nervous systems work together to produce movement and keep your organs functioning.

The appearance of a sight glass filled with vapor and liquid is different, and they can be distinguished based on their transparency or opacity. false

A sight glass that is full of vapor or liquid does not look the same.
In a sight glass, which is a transparent window or tube used to visually inspect the contents of a system, the appearance will vary depending on whether it is filled with vapor or liquid.
When the sight glass is filled with vapor, it will appear as a transparent or translucent gas. The vapor may be less dense and may not fill the entire sight glass, allowing visibility through it.
On the other hand, when the sight glass is filled with liquid, it will appear as a continuous, opaque fluid. The liquid will block visibility through the sight glass, and its level or presence can be clearly observed.
Therefore, the appearance of a sight glass filled with vapor and liquid is different, and they can be distinguished based on their transparency or opacity.

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Answer:

translational energy

Explanation:

because is diatomic

Billy jumps upward with a velocity of 4.2 m/s off a 6m high diving board.  . Billy will take 0.43 sec  to hit the water

The branch of physics that defines motion with respect to space and time, ignoring the cause of that motion, is known as kinematics.

using equation of kinematics

v = u + g*t

sign convention

positive y direction (upward) = +

negative y direction ( downward )  = -

v = u - g*t

0 = 4.2 - ( 9.8 * t )

t = 4.2 / 9.8

t = 0.43 sec

Billy will take 0.43 sec  to hit the water

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Answer:

I don't know

Explanation:

The impulse on the car is 12 kg m/s. Impulse is the integral of the force applied on the object and the time period for which it is applied.

Impulse is the integral of a force, F, over the time interval, t, for which it acts on an object. Since, force is a vector quantity, therefore impulse is also a vector quantity because it has both the magnitude and direction. Impulse applied to an object produces an equivalent vector change in its linear momentum. The SI unit of impulse is the newton second (N⋅s) or kilogram meter per second (kg⋅m/s).

Impulse = Change in momentum

ΔP = F × ΔT

where, F = Force applied on the object,

ΔT = change in time

ΔP = Pf - Pi

where, ΔP = change in momentum,

Pf = final momentum = m × v,

Pi = initial momentum = m × u

Pf = 1.5 kg × 10 = 15 kg m/s

Pi = 1.5 × 2.0 = 3.0 kg m/s

ΔP = 15 - 3

ΔP = 12 kg m/s

Therefore, the impulse is 12 kg m/s.

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Answer:

iron (Fe), cobalt

(Co), and nickel (Ni) .

The momentum of the probe after the retrorocket ceases to fire is 9.9 * 10^7 Kg m/s

We know that the momentum of an object has to do with the product of the mass and the velocity of an object. The momentum of an object is a vector quantity and the direction of the momentum is the direction of the velocity of the object that is in motion.

According to the Newton second law of motion, we know that the rate of change of the momentum is equal to the impressed force that is acting on the body.

We know that;

\(F_{t}\) = \(p_{f}\) -\(p_{i}\)

F = force

t = time taken

\(p_{f}\)= final velocity

\(p_{i}\) = initial velocity

\(p_{f}\) = \(F_{t}\)  + -\(p_{i}\)

\(p_{f}\) = (2.0 * 10^6 * 12 s) + 7.5 * 10^7

\(p_{f}\)  = 2.4 * 10^7 + 7.5 * 10^7

\(p_{f}\)  = 9.9 * 10^7 Kg m/s

Hence, the momentum of the retrorocket is 9.9 * 10^7 Kg m/s.

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Missing parts;

A  space probe is traveling in outer space with a momentum that has a magnitude of  7.5 * 10^7 kgm/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 2.0  * 10^6 N and a direction opposite to the probe's motion. It fires for a period of 12 s. Determine the momentum of the probe after the retrorocket ceases fire.

The general solution is y(t) = c1t + c2t ln(t) - (1/3)ln(t), where c1 and c2 are arbitrary constants.

To find the general solution of the differential equation\(t^2\)y'' + 3ty' + y = ln(t), where t > 0, we can use the method of variation of parameters.

First, we find the complementary solution by solving the associated homogeneous equation\(t^2\)y'' + 3ty' + y = 0. This equation can be rewritten as \(t^2\)y'' + 3ty' + ty' + y = 0, and factoring out y' gives t(ty')' + (ty)' = 0. Integrating this equation, we obtain ty' + ty = c1, where c1 is a constant.

Now, we assume the particular solution as y_p = u(t)y1 + v(t)y2, where y1 and y2 are linearly independent solutions of the homogeneous equation. Differentiating y_p twice and substituting it into the original equation, we can solve for u'(t) and v'(t) using the formulas:

u'(t) = -(y2 ln(t))/(W(t)y1)

v'(t) = (y1 ln(t))/(W(t)y2)

Here, W(t) is the Wronskian of y1 and y2. After integrating u'(t) and v'(t), we can substitute the obtained expressions back into the particular solution equation to find the general solution.

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The plane travels a distance of 325 miles if the airplane travels for 2.5 hours at an average speed of 130 miles per hour. Using the distance formula (d = rt), we can calculate the distance.

To find the distance traveled by the airplane, we can use the distance formula, which is represented as d = rt. In this formula, "d" represents the distance, "r" represents the rate or speed at which the object is traveling, and "t" represents the time taken for the travel.

Given that the airplane travels for 2.5 hours at an average rate of 130 miles per hour, we can substitute these values into the formula. The rate of the airplane is 130 miles per hour, and the time taken is 2.5 hours.

Using the formula, we can calculate the distance traveled as follows:

d = rt

d = 130 mph × 2.5 hours

Multiplying the rate (130 mph) by the time (2.5 hours) gives us:

d = 325 miles

Therefore, the airplane travels a distance of 325 miles during the 2.5 hours of travel at an average rate of 130 miles per hour.

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The Sun is supported against the crushing force of its own gravity by thermal pressure. The Sun is a giant ball of hot gas, and the heat from the nuclear reactions at its core creates pressure that pushes outward. This pressure balances the inward pull of gravity, keeping the Sun from collapsing.So option A is correct.

The Sun is supported against the crushing force of its own gravity by the process of hydro static equilibrium. This balance is maintained between the inward gravitational force and the outward pressure gradient resulting from the high temperature and density at the Sun's core. Thermal pressure, created by the high temperature and the thermal motions of gas particles, plays a significant role in supporting the Sun against gravity. The other options are not correct. Electron degeneracy pressure is the pressure exerted by electrons in a degenerate gas, which is a gas that is so dense that the electrons are forced to occupy the same quantum states. Neutron degeneracy pressure is the pressure exerted by neutrons in a degenerate gas. The force exerted by escaping neutrinos is a very small force that is not enough to support the Sun against gravity.Therefore option A is correct.

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Unintentional injuries caused by accidents are the number one killer of children and teenagers.

What causes the majority of adolescent deaths?

A little over half of all adolescent fatalities are caused by accidents. Over one-third of all fatal accidents fall under the category of motor vehicle fatalities, which is the top cause of death for teens. Non-Hispanic black male teens have the highest death rate.

The top causes of mortality for children under 5 years old continue to be congenital anomalies, pre-term birth complications, birth asphyxia, and other infectious diseases like pneumonia, diarrhea, and malaria. According to a recent study, homicide is the top cause of death for children in the United States, and the total rate has grown by 4.3% annually on average.

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Answer:

9996kg.m/s

Explanation:

∆p=mv. 1200kg*8.33m/s

The approximate momentum of this car is 9,996 Kgm/s.

Given the following data:

To determine the approximate momentum of this car;

Momentum refers to the product of the mass possessed by an object and its velocity.

Mathematically, momentum is giving by the formula;

\(Momentum = mass \times velocity\)

Substituting into the formula, we have;

\(Momentum = 1200 \times 8.33\)

Momentum = 9,996 Kgm/s.

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