His is an artist's model of the solar system. The scale bar in the drawing represents AU s. One AU is the distance rom the Sun to the Earth, which is about 93 million miles or 150 million kilometers. Is this an accurate scale model? Explain A) No. If Earth is 1 AU away from the Sun, Neptune should be about 30 AU'S away. It is not B) Yes, it is an accurate scale model showing the relative distances of each planet from the Sun. C Yes the drawing is to scale. The artist shows how the diameters compare as well as the distances from the Sun in AU's. Neither the distances from the Sun or the size of the planets are drawn to scale. Both are too small according to actual distances and diameters,​

Answer:

d. 0.48

Explanation:

The velocity required for the electron to escape the nucleus of both 3H and 3He is approximately 2.18 x 10⁶ m/s.

The velocity required for an electron to escape the nucleus can be determined using the concept of the minimum required energy for escape, which is given by the ionization energy of the atom.

The ionization energy, or the energy required to remove an electron from an atom, is given by the formula:

E = (Z² x 13.6 eV) / n²

where E is the ionization energy in electron volts (eV), Z is the atomic number of the atom, and n is the principal quantum number of the electron.

For hydrogen-3 (3H) and helium-3 (3He), Z = 1 since they both have one proton in the nucleus. Thus, the ionization energy for both atoms can be calculated using n = 1 (the electron closest to the nucleus), which gives:

E = (1^2 * 13.6 eV) / 1^2 = 13.6 eV

To determine the required velocity, we can equate the ionization energy to the kinetic energy of the electron:

(1/2)mv² = E

where m is the mass of the electron and v is the velocity of the electron. Substituting the mass of the electron and the ionization energy of the atom, we get:

(1/2)(9.11 x 10⁻¹³ kg)(v²) = (1.36 x 10⁻¹⁸ J)

Solving for v, we get:

v = √[(2E) / m]

= √[(2 x 1.36 x 10^-18 J) / (9.11 x 10⁻³¹ kg)]

= 2.18 x 10⁶ m/s

Therefore, the velocity required for the electron to escape the nucleus of both 3H and 3He is approximately 2.18 x 10^6 m/s.

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The temperature of the water and copper beaker be together is 29.6⁰C.

The final temperature or equilibrium temperature of the water and copper beaker is calculated by applying the principle of conservation of energy.

Heat lost by the water = Heat gained by the copper beaker

mcΔθ (water) = mcΔθ (copper)

where;

m₁c₁(T₁ - T) = m₂c₂(T - T₂)

where;

Specific heat capacity of copper, c₂ = 389 J/kgK

Specific heat capacity of water , c₁ = 4200 J/kgK

(2)(4200)(30 - T) = (1)(389)(T - 20)

252,000 - 8400T = 389T - 7780

259,780 = 8789T

T = 259,780 /8789

T = 29.6⁰C

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15 arcseconds is equal to 0.0042 degrees.

Arcseconds are a unit of measurement used in astronomy to describe very small angles. They are used to express the angular size or separation of celestial objects, such as stars, planets, galaxies, and more.

Yes, it is useful for the study of celestial bodies. By measuring the accuracy of the instrument in arcseconds, astronomers can determine the precision of their observations and the ability of the instrument to resolve fine details in celestial objects.

To convert 15 arcseconds to degrees:

1 arcminute contains 60 arcseconds, so 15 arcseconds is equal to 15/60 = 0.25 arcminutes.

1 degree contains 60 arcminutes, so 0.25 arcminutes is equal to 0.25/60 = 0.0042 degrees.

Therefore, 15 arcseconds is equal to 0.0042 degrees.

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The speed, smoothness, and external forces impacting the motion are the main distinctions between motion experienced in a car and motion on a train or plane.

If an object's location changes in relation to a fixed point or another object, the motion is said to be translatory. For instance, moving trains, moving cars, etc. When performing the translatory motion, all of a body's particles move in the same direction along parallel routes.

This is due to the fact that the term "motion" is a relative one. A body in motion for one observer may be at rest for another observer at the same time due to the point of reference. Motion and rest are relative to one another.

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Answer:

The mass of the apple is 0.49kg

Explanation:

Potential energy=mgh

P=mgh

6=m×1.22×10

6=12.2m

divide both sides by 12.2

m=6/12.2

m=0.49kg

First, let's calculate the rocket velocity when it stops accelerating, using Torricelli's equation:

After the engine stops, the total acceleration will be the gravity acceleration, with a downwards direction and magnitude of 9.81 m/s².

The maximum height occurs when the velocity is zero, so we can use the formula below:

Now we need to calculate the time spent accelerating (engine turned on):

Therefore the total time, since lift-off until maximum height, is:

The rocket reaches the maximum height 11.12 seconds after lift-off.

1720

Explanation:

distance+speed =time

40+1680=1720

Answer:

It is simple (your not dum.b) but you just need to divide 1680 by 40 which will give you the answer which would be 42 it would take 42 hours driving constantly at 40 miles an hour

Answer: no se

Explanation:no se

Answer:

The answer would be "This ancient form of pain relief and stimulation is said to benefit patients by blocking channels which practitioners claim

Explanation:

Answer:

It provides only a placebo effect.

Explanation:

Edge

The value of force is 1.7 × 10⁻³ N, with the direction opposite to that of the bat's motion.

When an object collides with another object, they exchange energy. For example, a baseball and bat collision or a car collision. When two objects collide, the force of the collision has to be equal on both sides of the collision according to Newton's Third Law. So, to find the value of force, we will apply the equation:

F = ΔP / ΔT

where F is the force, ΔP is the change in momentum, and ΔT is the time of collision. The equation represents the impulse momentum theorem.

Now, let's apply the given values to the above equation.

Final momentum (p2) = mass × final velocity (v2)

p2 = 0.15 kg × (-50 m/s)

p2 = -7.5 kg.m/s

Initial momentum (p1) = mass × initial velocity (v1)

p1 = 0.15 kg × (40 m/s)

p1 = 6 kg.m/s

Change in momentum (ΔP) = p2 - p1

ΔP = -7.5 kg.m/s - 6 kg.m/s

ΔP = -13.5 kg.m/s

Time of collision (ΔT) = 8.0 × 10³ s

Now, putting the values of ΔP and ΔT in the equation of impulse momentum theorem, we get:

F = ΔP / ΔT

F = -13.5 kg.m/s ÷ 8.0 × 10³ s

F = -1.7 × 10⁻³ N

Thus, the value of force is 1.7 × 10⁻³ N, with the direction opposite to that of the bat's motion.

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Answer:

Final velocity = 7.677 m/s

KE before crash = 202300 J

KE after crash = 182,702.62 J

Explanation:

We are given;

m1 = 1400 kg

m2 = 4700 kg

u1 = 17 m/s

u2 = 0 m/s

Using formula for inelastic collision, we have;

m1•u1 + m2•u2 = (m1 + m2)v

Where v is final velocity after collision.

Plugging in the relevant values;

(1400 × 17) + (4700 × 0) = (1400 + 1700)v

23800 = 3100v

v = 23800/3100

v = 7.677 m/s

Kinetic energy before crash = ½ × 1400 × 17² = 202300 J

Kinetic energy after crash = ½(1400 + 1700) × 7.677² = 182,702.62 J

Answer:

Jamestown  nearly 200 inches of snowfall

Explanation:

The area of Buffalo and Jamestown have extreme weather. Snowfall is   between 100 and 200 inches. Niagara has average snowfall around 100 inches and Elmira has around 80 inches snowfall from the map.

According to the map the greatest snowfall is around 200 inches which is shown in the area of Jamestown. Then comes the Buffalo a little less than Jamestown . Then the Niagara Falls and the least amount of snow is received by Elmira.

According to the map, Jamestown has nearly 200 inches of snowfall receives the greatest average annual snowfall.

The area of Buffalo and Jamestown have excessive weather. Snowfall is between 100 and 200 inches.

Niagara has an average snowfall of around 100 inches and Elmira has about 80 inches of snowfall from the map.

According to the map, the greatest snowfall is around 200 inches which are shown in the area of Jamestown.

Then comes the Buffalo a little less than Jamestown. Then the Niagara Falls and the least amount of snow is received by Elmira.

Thus, Jamestown has nearly 200 inches of snowfall receives the greatest average annual snowfall.

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Answer:

i don't know this answer

Answer:

28.63 m/s

Explanation:

At 0.990c of speed must a canister be shot from the first ship to approach the other at as seen by the second ship.

Given,

v = 0.800c

\(u^{'}\) = 0.999c

Relativistic velocity u = \(\frac{ v+u^{'} }{1+(vu^{'}/c^{2} ) }\)

v = relative velocity

u = velocity of object seen through observer one

\(u^{'}\) = velocity of object seen through observer two

c = speed of light

putting values into the formula:

= \(\frac{0.800+0.999}{1+[0.800x0.999/(3x10^{8})^{2}] }\)

= 0.990c

Hence, at 0.990c of speed must a canister be shot from the first ship to approach the other at as seen by the second ship.

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The time constant of the circuit can be determined from the formula τ = RC. The values given in the question are R = 4.00 MΩ and C = 3.00 µF. Thus, the time constant is given as:τ = RC = (4.00 × 10^6 Ω) × (3.00 × 10^-6 F) = 12 secondsb. The current in the circuit can be found by using Ohm’s law, which states that I = V/R, where V is the voltage across the circuit.

The voltage across the circuit is 12.0 V, so the current is given as:I = V/R = (12.0 V)/(4.00 MΩ) = 3.00 µAThe charge on the capacitor as a function of time can be found using the formula Q = Qmax (1 - e^(-t/τ)), where Qmax is the maximum charge that can be stored by the capacitor. The maximum charge can be found using the formula Qmax = CV, where V is the voltage across the capacitor.

The voltage across the capacitor is the same as the voltage across the circuit, which is 12.0 V. Thus, the maximum charge that can be stored by the capacitor is:Qmax = CV = (3.00 × 10^-6 F) × (12.0 V) = 36 µCThe charge on the capacitor as a function of time is given as:Q = Qmax (1 - e^(-t/τ)) = (36 µC) (1 - e^(-t/12)).

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A cylindrical bit of graphite with a radius of 0.7 mm is subjected to a potential differential of 24 V along its length by the student.

Pencils, lubricants, crucibles, casting facings, polishes, arc lights, batteries, electric motor brushes, and nuclear reactor cores all include graphite. China, India, Brazil, N.korea, and Canada all mine large amounts of it. Graphite was inadvertently created for the first time by Edward G.

It is special in that it possesses traits common to both metals and non-metals, including flexibility without being elastic, high thermal and electrical conductivity, high refractoriness, and chemical inertness. Due to its low X-ray and neutron absorption, graphite is a particularly useful material.

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The correct answer of Brewster’s angle is 48.8 degrees.

What is light's Brewster angle as it travels through water?

Brewster's law is the name of this equation, and the angle it defines is known as Brewster's angle. Brewster's angle for visible light is around 56° for a glass medium in air (n2 = 1.5), while it is roughly 53° for an air-water interface (n2 = 1.33)

The inverse tan of n 2 over n 1 is what is known as Brewster's Angle. Therefore, 48.8 degrees is the inverse tan of 1.52 divided by 1.33.

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The final velocity of the two-vehicle mass is 2.42m/s.

Momentum is defined as the product of mass and velocity of an object which is a vector quantity, which has a magnitude and a direction. If m is the mass of an object and v is its velocity, then p is the momentum of the object: \(\mathbf{p} = m \mathbf{v}.\)

For above given information,

\(m_1= 1400kg\\m_2= 6400kg\\v_1_i=-13.5 m/s\\v_2_i= 0m/s\)

Formula for this is:

\(m_1.v_1_i+m_2.v_2_i= (m_1+m_2)v_f\)

(1400.-13.5)+ (6400.0) = (1400+6400).\(v_f\)

-18900=7800.\(v_f\)

-18900/7800=\(v_f\)

\(v_f= 2.42m/s\)

Thus, the final velocity of the two-vehicle mass is 2.42m/s.

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Answer:

Oxygen is abiotic

Explanation:

Answer:

Jupiter Neptune moon Uranus

Explanation:

Distance = 2000m

Time = 35 minutes = 35×60 sec = 2100 sec

We know, Speed = Distance/Time

Therefore, Speed

= 2000m/2100s = 20/21 m/s

Answer: 20/21 m/s

Hope it helps! Please do comment

Velocity refers to the change in the position of the object with time.

The term velocity refers to the change in the position of the object with time. In this case, we have the position time graph that we could use to obtain the velocity of the body at any interval. The velocity is the slope of the position time graph.

4) velocity of the toy car from 0-3 seconds;

v = Δx/Δ t = 3 - 0/ 1.5 - 0 = 2 m/s

5) velocity of the toy car from 5-8 seconds

v = Δx/Δ t = 6 - 3/8 - 5 = 3/3 = 1 m/s

6)

v = Δx/Δ t = 0 m/s

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The student's claim is untrue. When the rod is brought closer, sphere A is polarized, and sphere B acquires a net negative charge. When the rod is removed, sphere B remains charged but sphere A does not remain polarized.

An uncharged object has a neutral charge because it has the same number of protons and electrons. An object is said to be positively charged if it lacks electrons and negatively charged if it has an excess of electrons.

The nature of electric charges is that if the charges are the same, they will repel each other, and if the charges are different, they will attract. So a charged object can attract other charged objects that have a different charge or attract one type of charge on an uncharged object.

When the positively charged rods are brought closer but do not touch ball A. Then sphere A, sphere A is polarized, and sphere B is negatively charged. When the rod is removed, sphere B remains charged but sphere A does not remain polarized.

Complete the question, see the picture.

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The angle of incidence in the glass is approximately 31.8°.

To find the angle of incidence in the glass, we can use Snell's law, which states that the ratio of the sines of the angles of incidence and refraction is equal to the ratio of the indices of refraction:

n1 * sin(angle of incidence) = n2 * sin(angle of refraction)

In this case, n1 is the index of refraction for flint glass (1.61), n2 is the index of refraction for ethanol (1.36), and the angle of refraction in ethanol is 27.2°.

Plugging in these values into Snell's law, we get:

1.61 * sin(angle of incidence) = 1.36 * sin(27.2°)

To find the angle of incidence, we can rearrange the equation:

sin(angle of incidence) = (1.36 * sin(27.2°)) / 1.61

Now, we can solve for the angle of incidence by taking the inverse sine (or arcsine) of both sides:

angle of incidence = arcsin((1.36 * sin(27.2°)) / 1.61)

Calculating this value, the angle of incidence in the glass is approximately 31.8°.

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Explanation:

First person:

First person is like you telling a story. It uses words like I or we. For example "I walked to the library after school," would be an example of first person. You are talking about yourself and what you did.

Second person:

Second person is referring to someone else. It uses words like you. This is like in a choose your own adventure book, with a sentence like "You advanced to the next level," or "You opened the door cautiously." You are talking about someone else, usually the person reading what you are righting.

Third person:

Third person is like you referring to someone in general. Common words for third person are she, he, they, them, or it. It is not always you talking about yourself or someone else. Some common examples are "The girl in the red coat then ate the cookie," or "They were in trouble!"

Hope this helps!