(a) The vertical height the sled reached above its starting point is 0.91 m.
(b) The sled's speed when it slides back down to its starting point is 18.43 m/s.
What is the maximum height reached by the sled?
The maximum height reached by the sled is calculated by applying the following kinematic equation as follows;
H = u²sin²θ/2g
where;
u is the initial velocity of the sled;θ is the angle of projectiong is acceleration due to gravityH = (10² x (sin 25)²) / (2 x 9.8)
H = 0.91 m
The sled's speed when it slides back down to its starting point can be calculated by applying the following equation;
The time of flight of the sled is calculated as;
t = 2u sinθ / g
t = (2 x 10 x sin25) / 9.8
t = 0.86 s
The final velocity of the sled is calculated as;
v = u + gt
v = 10 + 9.8(0.86)
v = 18.43 m/s
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HELP PLEASE FAST IT'S ARGENT I'LL GIVE (POINTS)
Answer:
Secondary succession
Explanation:
Between ball b and ball c, ball ____________ has less potential energy because_________________________.
b: b; its mass is smaller
Between ball B and ball C, ball B has LESS potential energy because its mass is smaller.
A potential energy, stored energy that depends upon the relative position of various parts of a system. A spring has more potential energy when it is compressed or stretched.
Potential energy is given by formula.
Since, P.E is directly proportional to mass. Thus, the ball having smaller mass will have the less P.E.
Thus, option b is correct.
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a fire protection code requires a minimum pressure of 65 psi at the outlet end (2) of a horizontal, 250 ft long, 4 inch diameter hose when the flowrate is 500 gal/min. what is the minimum pressure required at the inlet end (1). assume a roughness of e
A horizontal, 250-foot-long, 4-inch-diameter hose must have a minimum pressure of 65 psi at the outlet end (2) in order to comply with fire safety regulations.
what is the input end's minimum pressure requirement?The pressure present where the suction pipe connects to the booster pump is known as the inlet pressure, also known as pump intake pressure.The water pressure created if the booster pulls from a break tank or the pressure of the water provider determines the input pressure.Purchasing a pressure gauge from your neighborhood hardware shop and connecting it to a hose faucet is the most precise approach.To acquire a baseline reading, check the pressure when all other faucets and water-using devices are shut off.The ideal pressure range for domestic plumbing is between 30 and 80 psi.To learn more about minimum pressure requirement refer to:
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What makes cells. Dont answer that I already know what it is. I just wanted to give people some points. lol have a nice day.✌
Thank you for the pointsss
What is the shape of the projectiles loaded for shotshells?.
Small spherical projectiles are few shapes of the projectiles loaded for shotshells.
A projectile is any object that once projected or dropped continues in motion by its own inertia and is influenced only by the downward force of gravity.
Projectile is a body projected by external force and continuing in motion by its own inertia and the velocity is constant horizontally.
Modern ammunition varies depending on the type of firearm. Rifles and handguns use a cartridge containing a single projectile (bullet). Shotguns use a shot shell containing either a single slug or a large number of small projectiles (shot or pellets). However, the basic components of cartridges and shot shells are similar. The projectile is one of them.
This projectile is similar to many. Single shot firearm is different from a repeating firearm because of the fact that the single shot firearm is in need to be reloaded each time that the single shot firearm is being used whereas the repeating firearm has extra cartilages by which it doesn't necessarily in need to be reloaded each time it has been fired.
Therefore, the shape of projectiles loaded for shot shells are small spherical projectile.
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Problem 4: In a multiple-slit interference experiment, 15 narrow slits are equally spaced 0.25 mm apart and illuminated with light of wavelength 570 nm. The interference pattern is projected on a screen 2.4 m away. 25% Part (a) What is the angular position, in degrees, of the third principal maximum? A=0.391 ✓ Correct! 25% Part (b) What is the angular position, in degrees, of the fourth principal maximum? 0 = 0.522 ✓ Correct! 25% Part (c) If y is the position along the screen measured from the center of the pattern, then what is the distance, Ay between the third and fourth principal maxima on the screen? Recall that the screen is located 2.4 m from the barrier with the slits. Ay=0.00548 ✓ Correct! * 25% Part (d) In an N-slit interference pattern, there are N - 2 secondary maxima and N - 1 dark minima between each pair of sequential principal maxima. The dark minima are equally spaced between the centers of the pair of principal maxima. Calculate the width, 8y, of the third principal maximum. dy= 0.000000712 Deductions 1% Potential Grade Summary mi 99%
Given- 15 narrow slits, d=0.25 mm, λ=570 nm, D=2.4m
Angular position (interference)- formulae β=Dλ/d
after solving we get Angular position = 0.391
b) angular position, in degrees, of the fourth principal maximum = 0.522
c) If y is the position along the screen measured from the center of the pattern, then the distance, Ay between the third and fourth principal maxima on the screen = 0.00548m
d) In an N-slit interference pattern, there are N - 2 secondary maxima and N - 1 dark minima between each pair of sequential principal maxima. The dark minima are equally spaced between the centers of the pair of principal maxima. The width is = dy = 0.000000712 m
The vector total of the amplitudes of the individual waves is equal to the consequent amplitude at a location where two or more waves of the same sort are incident, according to the principle of superposition of waves. When the crests of two waves of the same frequency collide at the same spot, constructive interference happens.
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During which type of radioactive decay is the mass of the emitted particle the smallest?.
Answer:
Explanation:
The mass of the emitted particle is the smallest in beta decay.
Beta decay is the flow of electrons, alpha decay is the flow of helium nuclei
During alpha decay, the mass of the emitted particle is the smallest compared to other types of radioactive decay.
In alpha decay, an unstable atomic nucleus emits an alpha particle, which consists of two protons and two neutrons bound together, effectively forming a helium-4 nucleus. This means that the alpha particle has a mass of approximately 4 atomic mass units (AMU).
In contrast, beta decay involves the emission of beta particles, which can be either beta-minus particles (electrons) or beta-plus particles (positrons). These particles have much smaller masses compared to alpha particles. For example, a beta-minus particle (electron) has a mass of approximately 0.00055 AMU, and a beta-plus particle (positron) has the same mass but opposite charge.
Gamma decay, on the other hand, does not involve the emission of particles with mass but instead releases high-energy photons (gamma rays) to stabilize the nucleus.
Hence, the alpha particle emitted during alpha decay has the smallest mass among the particles emitted during radioactive decay processes.
During alpha decay, the mass of the emitted particle is the smallest compared to other types of radioactive decay.
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if the skater started from rest 4 m above the ground (instead of 7 m ), what would be the kinetic energy at the bottom of the ramp (which is still 1 m above the ground)?
The kinetic energy at the bottom of the ramp is 2205 J.
The kinetic energy of an object is the electricity that it possesses because of its motion. Tt is defined because the work needed to accelerate a body of a given mass from rest to its stated velocity. Having won this power for the duration of its acceleration, the body maintains this kinetic electricity until its pace adjusts.
Kinetic energy is a form of strength that an object or a particle has by means of the cause of its motion. If work, which transfers electricity, is done on an object by way of applying an internet force, the item quickens and thereby gains kinetic electricity.
Calculation:-
KE = decrease in potential energy
= mg(h2 - h1)
= 75 * 9.81 * ( 4 - 1)
= 2205 J
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Which does not have much allowed values for each of the four quanta numbers: n, l, ml, and ms ?.
There are four quantum numbers in chemistry. These are the principal quantum number, the angular momentum quantum number, the magnetic quantum number, and the spin quantum number. These all follow these three foundational rules in chemistry.
Principle Quantum Number: It describes the size of the orbital and the main energy level. It is represented by n. Where, n = 1,2,3,4....stands for K, L, M, N shell and so on..
Angular momentum Quantum Number : It describes the shape of the orbital. It is represented as 'l'. The value of l ranges from 0 to (n-1). For l = 0,1,2,3... the orbitals are s, p, d, f...
Magnetic Quantum Number : It describes the orientation of the orbitals. It is represented as . The value of this quantum number ranges from . When l = 2, the value of will be -2, -1, 0, +1, +2.
Therefore, we got to know that the values for each quantum number can be up to 4.
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which of the pathways below are in the correct order for the flow of electrons from glucose to oxygen in aerobic respiration? select one: a. glycolysis, citric acid cycle (tca), ets g
Glycolysis, a pathways for the flow of electrons from glucose to oxygen in aerobic respiration.
The process of obtaining chemical energy for the body in the form of ATP is called respiration. In the process, chemical bond energy stored in various molecules is reduced or oxidized. The most commonly used substrate in this pathway is glucose.
Glucose is first converted to two molecules of pyruvate by a pathway known as glycolysis. The pyruvate produced is converted to acetyl-CoA and enters the Krebs cycle. In the Krebs cycle, acetyl-CoA is oxidized to form CO2, ATP, NADH and FADH2. NADH and FADH2 are used as reducing forces within the electron transport chain or ETC, oxidizing various enzymes and coenzymes within the ETC to synthesize ATP.
Therefore, the correct sequence of processes involved in aerobic cellular respiration is glycolysis, the Krebs cycle, and the electron transport chain.
So the correct answer is "glycolysis, Krebs cycle, electron transport system".
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three blocks are stacked on top of one another.The top block has a mass of 4.6kg,the middle one has a mass of 1.2kg, and the bottom one has a mass of 3.7kg.Identify the calculate any normal force between the object
The normal force between the objects is achieved by adding up. They are 36.26 N and 48.02 N respectively.
What is Force ?A force can simply be defined as a pull or push. The normal force is a reactive force on the weight of an object.
Given that three blocks are stacked on top of one another. The top block has a mass of 4.6kg, the middle one has a mass of 1.2kg, and the bottom one has a mass of 3.7kg.
The weight of each block will be;
First block = 4.6 × 9.8 = 45.08 N
Middle block = 1.2 × 9.8 = 11.76 N
Bottom block = 3.7 × 9.8 = 36.26 N
The normal force between the bottom and the middle objects will be 36.26 N
The normal force between the middle and the first objects will be 36.26 + 11.76 = 48.02 N
The normal force on the first object will be 36.26 + 11.76 + 45.08 = 93.1 N
Therefore, the normal force between the objects are 36.26 N and 48.02 N respectively
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a whisper in a quiet library is about 30 decibels. what decibel level would be recorded by a table of 100 library patrons each whispering at 30 decibels? decibels
The decibel level that will be recorded by a table of 100 library patrons each whispering at 30 decibels is 50 decibels.
What is the decibel level?From the information, the relative intensity is 100. This can be illustrated as 10². Therefore, t = 2. Now the logarithm of the relative intensity is increased by 2 units.
The decibel will be:
= 10 × 2
= 20 units.
Therefore, the decibel level that will be recorded by a table of 100 library patrons will be:
= 20 + 30
= 50 decibels.
Therefore, the decibels level is 50 decibels.
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a transformer has 620 turns in the primary coil and 68 in the secondary coil. part a what kind of transformer is this? what kind of transformer is this? it's a step-up transformer. it's a step-down transformer.
A transformer has 620 turns in the primary coil and 68 in the secondary coil. Step-down transformer is the type of transformer utilized.
What is transformer and its type?In the fields of electricity and electronics, transformers are a common tool. It is an electromagnetic gadget that utilizes the fundamental electromagnetism theory developed by Michael Faraday.
Step up transformer:Exactly the opposite of a step-down transformer is a step-up transformer. Using a step-up transformer, the low primary voltage is raised to a high secondary voltage. Once more, it is accomplished by the proportion between primary and secondary windings.
Step down transformer:Reduction in height Both the electrical and electronic fields require transformers. A step-down transformer lowers the voltage across the secondary output from the primary voltage level.
Here,
no. of turns in primary coil = N[tex]_{p}[/tex] = 620
no. of turns in secondary coil = N[tex]_{s}[/tex] = 68
hence, N[tex]_{p}[/tex] > N[tex]_{s}[/tex]
so, the given transformer is step down transformer.
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The acceleration of gravity on planet X is 7.31 m/s/s. An object weighs 920.0 Newtons on Earth. What mass value would occupants of planet X determine
Mass
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4
kg
Inf
Answer:
thw answer is given on the photo above.. this is a very simple question based on force chapter of physics
125.85 Kg mass value would occupants of planet X determine.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
mass = weight/acceleration
mass = 920/7.31 = 125.85 kg
mass = 125.85 Kg
125.85 Kg mass value would occupants of planet X determine.
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Think about the ecosystem that you live in. Write a response below describing it in complete sentences. Use each of these terms correctly in your description
An ecosystem is made of different species of animals, plants and the resources for their living. If we observe our surroundings, we can see many more types of living things with their own peculiarities.
What is ecosystem?Ecosystems in earth contains the region where living things and major resources exists. There are different ecosystems namely, forests, aquatic systems, deserts, gralsslands, marshy lands etc.
If we observe around there are various kinds of plants and animals in water bodies as well as in land. They can their characteristic features and adapting powers. They can be of same species or different, social living or isolated living.
We can classify water bodies as one ecosystem and land area and grass lands as other ecosystems.
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A 5.0-kg and a 10-kg box are touching each other. A 45.0-N horizontal force is applied to the 5.0-kg box in order to accelerate both boxes across the floor the coefficient of kinetic friction is 0.200 determine the acceleration and the contact force
Answer:
Below
Explanation:
Fn = Normal force = (5 + 10) ( 9.81 ) = 147.15 N (Contact force)
Friction force = 147.15 * .2 = 29.43 N
Net force causing boxes to move = 45 - 29.43 = 15.57 N
F = m * a
15.57 = ( 5+10) * a shows a = 1.038 m/s^2
What is the acceleration of the basketball with a mass of 0. 60 kg and a force of 10. 8 n? resisting forces are forces are ignored.
The net acceleration of a basketball where resisting forces are null is 18m/s².
Principle & Calculations-
Newton's second law provides a precise description of the modifications that a force can make to a body's motion. According to this, the force acting on a body has an equal and opposite magnitude and rate of change in its momentum over time. A body's momentum is determined by multiplying its mass by its speed. Similar to velocity, momentum is a vector quantity that has both a magnitude and a direction. The magnitude, direction, or both of the momentum of a body can be altered by an external force.One of the most crucial principles of physics is Newton's second law. For a body whose mass m is fixed, the equation F = ma can be used, where F (for force) and a (for acceleration) are both vector quantities.A body is propelled forward in accordance with the equation if there is a net force acting on it. On the other hand, there is no net force acting on a body if it is not accelerated.[tex]F=ma\\\\\\a=\frac{F}{m}[/tex]a= 10.8N/0.60 ⇒ 18m/s²To learn more about acceleration-
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if an extrasolar planet suddenly became more massive, but kept the same radius and orbit, what would change in the observed doppler shift of the star?
If an extrasolar planet suddenly became more massive, but kept the same radius and orbit, peak velocity of the star would increase in the observed doppler shift of the star.
fo = [ ( v + vo ) / v + vs ) ] fs
fo = Observer frequency of sound
v = Speed of sound waves
vo = Observer velocity
vs = Source velocity
fs = Actual frequency of sound waves
If an extrasolar planet suddenly became more massive, but kept the same radius and orbit, time between peaks in the velocity of the star would decrease in the observed doppler shift of the star. This means that the peak velocity of the star would increase.
Therefore, the change in the observed doppler shift of the star is that the peak velocity of the star would increase.
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A car braked with a constant deceleration of 18 ft/s2, producing skid marks measuring 100 ft before coming to a stop. How fast was the car traveling when the brakes were first applied?.
Answer:
[tex]60\; {\rm ft \cdot s^{-1}}[/tex].
Explanation:
Let [tex]a[/tex] denote the acceleration of this car; [tex]a = (-18)\; {\rm ft \cdot s^{-2}}[/tex]. Note that acceleration [tex]a\![/tex] measures the rate of change in velocity. Since this car is slowing down, acceleration [tex]a\!\![/tex] will be negative.
Let [tex]x[/tex] denote the displacement of the car. It is given that [tex]x = 100\; {\rm ft}[/tex] as the car braked.
Let [tex]v[/tex] denote the velocity of the car after braking. Since the car has stopped, [tex]v = 0\; {\rm ft \cdot s^{-1}}[/tex].
Let [tex]u[/tex] denote the initial velocity of the car. Apply the SUVAT equation [tex]v^{2} - u^{2} = 2\, a\, x[/tex] to find the value of [tex]u\![/tex]. Rearrange this equation to obtain:
[tex]u^{2} = v^{2} - 2\, a\, x[/tex].
[tex]\displaystyle u = \sqrt{v^{2} - 2\, a\, x}[/tex].
Substitute in [tex]v = 0\; {\rm ft \cdot s^{-1}}[/tex], [tex]a = 18\; {\rm ft \cdot s^{-2}}[/tex], and [tex]x = 100\; {\rm ft}[/tex] to find the value of [tex]u[/tex]:
[tex]\begin{aligned} u &= \sqrt{v^{2} - 2\, a\, x} \\ &= \left(\sqrt{0^{2} - 2 \times 18 \times 100}\right)\; {\rm ft \cdot s^{-1}} \\ &= 60\; {\rm ft \cdot s^{-1}}\end{aligned}[/tex].
In other words, this car was travelling at [tex]60\; {\rm ft \cdot s^{-1}}[/tex] before braking.
please answer fast, you'll save my life TY!!!
Answer:
C and D
Explanation:
Electrostatic force = C q1 q2 / r^2
C = coulomb's constant q = charge r = distance between charges
so you can see that C and D will increase the force
if the mass of the ladder is 12.0 kg , the mass of the painter is 55.0 kg , and the ladder begins to slip at its base when her feet are 70% of the way up the length of the ladder, what is the coefficient of static friction between the ladder and the floor? assume the wall is frictionless.
If the painter weighs 55.0 kg and the ladder weighs 12.0 kg, and the ladder starts to slide at the base when her feet are 70% of the way up the length of the ladder, The coefficient of static friction between the ladder and the floor is 0.5.
What do you mean by static friction?The resistance people feel when they try to move something that is stationary on a surface without actually moving their bodies or the surface they are trying to move it on.
n = F[tex]_{GY}[/tex]
F[tex]_{s} ^{max}[/tex] = F[tex]_{GX}[/tex]
F[tex]_{GY}[/tex] = μ[tex]_{s}[/tex] n
F[tex]_{GX}[/tex] = μ[tex]_{s}[/tex] F[tex]_{GY}[/tex]
Sum of horizontal forces is 0 = F[tex]_{GX}[/tex] -F[tex]_{W}[/tex] = 0
∴ F[tex]_{GX}[/tex] = F[tex]_{W}[/tex]
Sum of vertical forces is 0 = F[tex]_{GY}[/tex] - mg -Mg = 0
F[tex]_{GY}[/tex] = g (m+M)
Total torque at point a (foot of ladder) = 0
hence,
mg (1.5) + Mg(2.1) - F[tex]_{W}[/tex](4) =0
mg (1.5) + Mg(2.1) = F[tex]_{W}[/tex](4)
mg (1.5) + Mg(2.1) = F[tex]_{GX}[/tex](4)
mg (1.5) + Mg(2.1) = μ[tex]_{s}[/tex] F[tex]_{GX}[/tex](4)
mg (1.5) + Mg(2.1) = μ[tex]_{s}[/tex] g(m+M) (4)
μ[tex]_{s}[/tex] = [tex]\frac{mg (1.5) + Mg(2.1)}{4g(m+M)}[/tex]
μ[tex]_{s}[/tex] = [tex]\frac{12 (1.5) + 55(2.1)}{4(12+55)}[/tex]
μ[tex]_{s}[/tex] = 0.5
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How much does A car of mass 1110 kg weigh
⇒ In Earth the gravitational Constant is ≅9.81
To get the weight of the car we use the formula W=m×g
where W is the letter that represents the weight
m represents the mass of the car and g represents the gravitational constant.
[tex]W=1110*9.81\\W=10889.1[/tex]
⇒Weight is a force, therefore the unit of measurement is N which stands for Newtons.
⇒The car with a mass of 1110kg weighs 10889.1 N on Earth.
Answer:
Explanation:
A car of mass 1110 kg weigh:
F = m·g
F = 1110·10 = 11100 N = 11.1 mN
A vibrating structural beam in a spacecraft can cause problems ifthe frequency of vibration is fairly high. Even if the amplitude ofvibration is only a fraction of a millimeter, theacceleration of the beam can be several times greater than theacceleration due to gravity. As an example, find the maximumacceleration of a beam that vibrates with an amplitude of 0.25 mmat the rate of 110 vibrations per second. Give your answer as amultiple of g.
The maximum acceleration of the beam is 12.18 g.
What is the maximum acceleration of the beam?Centripetal acceleration is defined as the property of the motion of an object, traversing a circular path. The maximum centripetal acceleration is the rate at which the maximum angular velocity changes with time.
The centripetal acceleration is obtained by multiplying the radial acceleration by amplitude of the motion.
The maximum acceleration of the beam is calculated as follows;
a = ω²r
where;
ω is the angular speed of the vibrating objectr is the radius of the pathmaximum acceleration = ω²A
where;
A is the amplitude of the motionThe given parameters;
angular speed of the vibrating beam = 110 rev/s = (110 x 2π rad)/s = 691.1 rad/sthe amplitude of the vibration, A = 0.25 mma(max) = (691.1²) x (0.25 x 10⁻³)
a(max) = 119.4 m/s²
In multiple of acceleration due to gravity (g) = 119.4 / 9.8 = 12.18 g
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An apple is placed on a kitchen counter How could the movement of the particles in the apple be decreased
OA. Put it in the sunlight.
OB.
Put it in the microwave.
OC. Put it in the refrigerator.
OD.
Eat it for dinner
Reset
Submit
Answer: The correct option would be (Put it in the refrigerator)
Explanation: Have a good day :)
Answer:
C
Explanation:
Decreasing its temp decreases particle movement
What checks the power of a President?.
A statute may be subject to the President's veto in the executive branch, but with enough votes, the legislative branch can override the veto.
The legislative branch is in charge of approving presidential appointees, overseeing the budget, and having the power to impeach and remove the president. The supervision of the executive branch is the Congressional restraint on the President's power and a balance to his or her discretion in implementing laws and creating regulations. Proceedings are one of the main ways that Congress carries out oversight.There are several ways for the Congress to restrict the president's authority. The first method involves the Congress voting to remove the president from office through impeachment. The following method is "advice and permission." Judges and other officials can be chosen by the president, but the Congress must provide its consent.Thus this is how President's powers are checked.
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photons of ulltraviolet radiation with wavelengths that are shorter than those of visible light will have what kind of energy in relation to visible light?
Ultraviolet radiation has shorter waves than blue or violet light, and thus oscillates more rapidly and carries more energy per photon than visible light does.
Infrared and ultraviolet radiation are the neighbors of visible light in the electromagnetic spectrum.Red light contains shorter waves than infrared radiation, which causes it to oscillate at a lower frequency and carry less energy.
One way energy travels is as visible light.Light waves are an example of electromagnetic (EM) radiation because they are produced by the vibration of electric and magnetic fields.
Although visible light is only one of many different types of electromagnetic radiation and only makes up a very small portion of the entire electromagnetic spectrum, it holds unique relevance for us because we can see it with our eyes.
The wavelength of light is between 400 and 700 nanometers (4,000 to 7,000 angstroms).Our eyes interpret the various light wavelengths as the hues of the rainbow.
Around 700 nm length, the waves of red light are comparatively long.The wavelength of blue and purple light is only 400 nm.
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Determine the acceleration that results when a 10-N net force is applied to a 5.1 kg object.
Answer:
1.96 m^2
Explanation:
F = m * a
10 = 5.1 * a
a = 1.96 m/s^2
to advance in time the evolution of temperature of the atmosphere at any given point in the globe, models calculate the temperature changes due to
The forecasting of global surface temperatures is one of the most significant results of climate models.
Scientists evaluate the effectiveness of their models by contrasting observations of the Earth's climate with predictions of future temperatures and "hindcasts" of past temperatures. Then, by comparing specific climate models and the average of all models to actual warming, scientists may determine whether temperature projections are accurate.
Researchers can have more faith that models can effectively predict future changes in the same factors if they successfully simulate the climate response in the past.
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A laser beam from Earth is reflected back from a mirror on the Moon in 2.60 s. If the distance between Earth and the Moon is 3.85 × 108 m, calculate the speed of light. Please show all work. (ref: p.438-446)
The formula used is related to echo formula under sound. The speed of light V is 2.9 × 10^8 m/s
What is Speed ?Speed can simply be defined as distance travelled per time taken. it is a scalar quantity and it is measured in m/s
Given that a laser beam from Earth is reflected back from a mirror on the Moon in 2.60 s. If the distance between Earth and the Moon is 3.85 × 108 m.
The speed of light V = 2d/T
Where
d = 3.85 × 10^8 mT = 2.6 sV = ?Substitute all parameters into the formula
V = (2 × 3.85 × 10^8) / 2.6
V = 7.7 × 10^8 / 2.6
V = 296153846.2
V = 2.9 × 10^8 m/s
Therefore, the speed of light is 2.9 × 10^8 m/s
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The star wemadeit shows a stellar parallax angle of 0. 2 seconds of arc while the star waytoofar shows a stellar parallax angle of 0. 3 seconds of arc. From this, you can conclude that?.
We can conclude that Wemadeit is closer to our Sun than Waytoofar.
What is parallax angle ?
The parallax angle is the angle between the Earth one season of the year and the Earth six months later, as measured from a nearby star. Astronomers use this angle to determine the distance of this star from Earth. How do scientists measure this angle and from this information how do they know the distance to the star?
Since the earth revolves around the sun every year, every half year (6 months) it will be on the opposite side of what it was half a year ago. Because of this, nearby stars appear to move relative to distant "background" stars. You can see this effect when driving in the countryside. Nearby traffic signs appear to be moving fast, while distant buildings/trees, etc. appear to be moving slowly, but the sun is not moving at all! It wouldn't have happened otherwise.) Another example:
Hold the pencil at arm's length and look with one eye, then the other. Note that it changed position but didn't actually move. Your eyes model different locations on the earth. First on one side of the sun (nose), then on the other. Astronomers look up at the sky on a specific date and six months later to see how far nearby stars appear to be moving against the background. The angles at which these astronomers measure the motion of stars are actually the same angles they would see the motion of the Earth if they could travel to the stars. Scientists know how far the Earth has traveled in her six months (twice as much as the Sun does), so they have all the information they need to determine the distance to a star.
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https://brainly.com/question/1059460
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