When osmium goes from a solid to a liquid and finally a gas, the element has undergone _____.

The  semi-major axis of an elliptical planetary orbit is equal to the distance between the planets and the Sun at aphelion.

The term semi major axis refers to a half of the of the distance from middle of an ellipse to another end of the ellipse.

Recall that the solar system has the sun at the center if the ellipse. Hence, the  semi-major axis of an elliptical planetary orbit is equal to the distance between the planets and the Sun at aphelion.

Learn more about semi-major axis: https://brainly.com/question/1029970

The steam engine works on the James Prescott law.

We define a law in physics as that which sheds more light on an observation. We know that science is about the discovery and the explanation of certain phenomena. Recall that heat is that which causes a change in the temperature of an object.

Now, the law of James Prescott has mostly to do with the fact that the rate at which it is possible for us to be able to obtain the heat from an engine is quite related to the heat energy that is produced by the resistance of the coil. What has been explained above is based on the fact that resistance must always lead to the production of heat energy.

There are some materials or objects that are found to work based on the  James Prescott law. One of these is called the steam engine.

Learn more about James Prescott law:https://brainly.com/question/13007583

#SPJ1

A ball or sphere's angular momentum L is equal to its moment of inertia I times its angular velocity omega. Angular velocity is the linear speed of a point on the sphere's surface or radius, or two.

The angular momentum of a body in a circular orbit with radius r is given by L = r mv = mr2. A ball on a thread being spun around your head is an easy demonstration of the conservation of angular momentum. For a point mass travelling in a circle with radius r, the moment of inertia will be equal to mr squared. Angular momentum is defined as moment of inertia times angular velocity. Therefore, the angular momentum is equal to 5.12-kilogram meters squared per second (0.270 kilograms times 1.35 meters squared times 10.4 radians per second).

Learn more about momentum here-

https://brainly.com/question/24030570

#SPJ4

Frost wedging is a type of physical weathering of rock.

Explanation:

Physical or mechanical weathering affects the rock structurally but does not change the chemical composition. Mechanical forces will rub, break or shatter the rock surfaces. Wedging, abrasion, exfoliation are different types of physical weathering.

Water is one of the main sources which alter the structure of the rocks physically.

Frost wedging occurring due to flow of freezing water over the rocks. This frozen water enters the rock through the cracks and crevices on the rock surface,  and will expand inside and makes the rocks to crack further and breaks it apart.

Please mark brainliest

All living organisms are mainly composed of the elements: Oxygen, Carbon, Hydrogen, Nitrogen, Phosphorus.

The correct answer choice is option c.

Living organisms are those things that has life. They include plants and animals. Living organisms be it plants or animals are composed of important elements such as carbon, oxygen and others.

However, there are certain characteristic features which living organisms possess. Some of these characteristics of living things are as follows:

Other characteristics of living organisms are:

In conclusion, we can now confirm from above the explanation given above that living things are made up of certain elements.

Read more on living organisms:

https://brainly.com/question/17259533

#SPJ1

Answer:

I think 40 km/hr

Explanation:

100/2.5=40

Answer:

a wave increasing in energy as it hits another wave

Explanation:

A wave increases in energy as it hits another wave.

The higher the amplitude, the better the power. To summarise, waves bring strength. the amount of strength they create is related to their frequency and their amplitude. The better the frequency, the more power, and the higher the amplitude, the more energy.

Amplitude in a transverse wave is measured by way of the gap from the relaxation position of the medium to one of the crests or one of the troughs. The energy carried through a transverse wave will increase because the amplitude of the wave will increase.

Learn more about Amplitude here: https://brainly.com/question/25699025

#SPJ2

Answer:

True

Explanation:

Its true

The statement "Galaxies are made of millions of stars, interstellar gas, and dust that stay relatively close together due to magnetic attraction." is false.

Gravitation, also known as gravity, is a fundamental force of nature that attracts objects with mass or energy toward each other. It is the force that keeps planets in orbit around stars, stars in orbit around the centers of their galaxies, and all objects on the surface of the Earth.

According to Newton's law of gravitation, every mass in the universe attracts every other mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. This means that the larger the masses of the objects and the closer they are to each other, the greater the gravitational force between them.

In this question,

Galaxies are made up of millions, or even billions, of stars along with interstellar gas and dust. However, the gravitational force, not magnetic attraction, is what holds the stars and other components of a galaxy together. The gravitational attraction between the stars and other matter in the galaxy is what allows them to orbit around the center of mass of the galaxy. In fact, the vast majority of matter in a galaxy is dark matter, which is an invisible and unknown form of matter that interacts gravitationally with other matter in the galaxy.

While magnetic fields do exist in galaxies, they are generally much weaker than gravitational forces and play a secondary role in the structure and dynamics of galaxies.

To learn more about Newton's law of universal gravitation click:

https://brainly.com/question/858421

#SPJ3

The direction of the velocity vector is 30 degrees from the +x axis which is counterclockwise, so it is positive.

This can be calculated using the arctangent function. Specifically, the angle can be calculated as arctan(y/x), which in this case is arctan(-1/√3). The result is 30 degrees.

The velocity vector is given as (√3i-j)m/s. Here, +x is to the right, and +y is upwards. Let us now determine the angle from +x with counterclockwise (ccw) taken as positive.Step-by-step explanation:Let's draw the velocity vector as given below:Here, we can use trigonometry to calculate the angle between the vector and the positive x-axis.

To do this, we can consider the right-angled triangle formed by the vector and the x-axis. Then, the tangent of the angle between the vector and the x-axis is given by:tan(θ) = y/x = -1/√3Therefore,θ = tan⁻¹(-1/√3) = -30°The angle measured counterclockwise from +x is -30°. The correct answer is O -30 degrees.

More on velocity vector: https://brainly.com/question/3525680

#SPJ11

Answer: Ionic bonds usually occur between metal and nonmetal ions.

Explanation:

The total average power output of the Sun is approximately 3.828e26 watts. The intensity of sunlight incident on Mercury is approximately 9087 W/m².

(a) To calculate the total average power output of the Sun (P), we can use the formula for the intensity (I) of an isotropic source:

I = P / (4 * π * r²)

where I is the intensity, P is the power output, and r is the distance from the source. The intensity at Earth's upper atmosphere is 1310 W/m², and the distance from the Sun to Earth (r) is approximately 1.496e11 meters (1 Astronomical Unit).

We can rearrange the formula to find the power output (P):

P = I * (4 * π * r²)

P = 1310 W/m² * (4 * π * (1.496e11 m)²)
P ≈ 3.828e26 W

The total average power output of the Sun is approximately 3.828e26 watts.

(b) To find the intensity of sunlight incident on Mercury, we can use the same formula with the distance between Mercury and the Sun (5.9e10 m):

I_Mercury = P / (4 * π * r_Mercury²)

I_Mercury = 3.828e26 W / (4 * π * (5.9e10 m)²)
I_Mercury ≈ 9087 W/m²

The intensity of sunlight incident on Mercury is approximately 9087 W/m².

More on power: https://brainly.com/question/30519200

#SPJ11

Answer:

Explanation:

I assume you meant to type t = √2h/g and you're referring to an object in free fall:  If so, here's my answer:

x = x₀ + v₀t + 1/2at²

for an object in free fall x - x₀ = h    (height the object falls)

v₀ = 0   (if the object starts at rest)

a = g

Therefore,

h = 1/2gt²

t² = 2h/g

t = √2h/g

The wall is positively charged, whereas it is negatively charged. If a woollen fabric is not used to massage it, it will not do so. When the sand was drawn inside the balloon, the same thing occurred.

Positive charges pull away from negative charges. The balloon will attract the wool fabric if it is not touched since it contains an equal balance of negative and positive charges. Both balloons will reject one another when they are brushed with the wool cloth because they both receive negative charges.

Positive and negative particles make up the water. Because positive and negative ions are attracted to one another, when you bring the balloon near the water, the positively charged water molecules will pull the water in the direction of the negatively charged balloon.

To know more about Balloon attract visit:

https://brainly.com/question/7640921

#SPJ13

Explanation:

t = usin©/g

Where t is the time to reach the maximum height

Time spent in air is T = 2t

Hence, T = 2usin©/g

T = 2 x 20 x sin 65°/ 9.8

T = 3.69s

δG° for this reaction h2(g) co(g) → ch2o(g) at 25°c is +34.6 kJ (option a).

We can use the formula:
δG° = δH° - TδS°
where δG° is the change in Gibbs free energy, δH° is the change in enthalpy, T is the temperature in Kelvin, and δS° is the change in entropy.

First, convert 25°C to Kelvin:
T = 25°C + 273.15 = 298.15 K

Next, convert the given entropy value from J/K to kJ/K by dividing by 1000:
δS° = -109.6 J/K ÷ 1000 = -0.1096 kJ/K

Now, plug the values into the formula:
δG° = 1.9 kJ - (298.15 K × -0.1096 kJ/K)

δG° = 1.9 kJ + 32.7 kJ

δG° = 34.6 kJ

To learn more about Gibbs free energy visit:     https://brainly.com/question/9179942

#SPJ11

The ball travels a distance of 200 meters during its journey down the hill. The acceleration of the ball rolling down the hill is 16 m/s².

The acceleration of the ball rolling down the hill can be calculated using the formula: Distance = (1/2) × Acceleration × Time². Here, the distance travelled by the ball = 200m. Time is taken by the ball to travel this distance = 5 seconds. As per the given information, the ball rolls down the hill with uniform acceleration, so the acceleration remains constant throughout the journey. Dist = (1/2) x a x t²200 = 0.5a x (5)²200 = 12.5 aSo, acceleration a = 200 / 12.5a = 16 m/s²As per the formula of motion s = ut + (1/2) × a × t², where s is the distance travelled by the object, u is its initial velocity, a is the acceleration of the object, and t is the time taken by the object to travel that distance. Here, the initial velocity of the ball is 0, as it starts from rest. So, s = (1/2) × a × t²s = 0.5 × 16 × 25s = 200 meters.

So, the distance travelled by the ball when it reaches the bottom of the hill is 200 meters. The ball starts from rest and rolls down the hill with uniform acceleration. During the second 5.0 seconds of its motion, it travels a distance of 200 meters. Using the formula for distance, we can find the acceleration of the ball. We get that the acceleration of the ball rolling down the hill is 16 m/s².Using the formula for motion, we can find the distance travelled by the ball when it reaches the bottom of the hill. We get that the distance travelled by the ball is 200 meters. Therefore, the ball travels a total distance of 200 meters during its journey down the hill. The ball travels a distance of 200 meters during its journey down the hill. The acceleration of the ball rolling down the hill is 16 m/s².

To know more about initial velocity visit

brainly.com/question/28395671

#SPJ11

Answer:

The final speed of the 8-ball if the cue ball continues to move at 0.5 m/s in the same direction after collision is approximately 1.6 m/s

Explanation:

The given values in the question are;

The mass of the given 8-ball, m₁ = 0.16 kg

The initial speed of the 8-ball, v₁ = 0 m/s

The final speed of the 8-ball = v₃

The mass of the cue ball, m₂ = 0.17 kg

The initial speed of the cue ball, v₂ = 2 m/s

The final speed of the cue ball, v₄ = 0.5 m/s

By the law of conservation of linear momentum, we have that the total momentum in an isolated system is constant (always)

Therefore;

The total initial momentum = The total final momentum

The total initial momentum = m₁ × v₁ + m₂ × v₂ = The total final momentum = m₁ × v₃ + m₂ × v₄

Substituting the known values, gives;

0.16 × 0 + 0.17 × 2 = 0.16 × v₃ + 0.17 × 0.5

0.16 × v₃ = 0.16 × 0 + 0.17 × 2 - 0.17 × 0.5 = 0.255

∴ v₃ = 0.255/0.16 = 1.59375 ≈ 1.6

The final speed of the 8-ball, given that that cue ball continues to move at 0.5 m/s in the same direction = v₃ ≈ 1.6 m/s

Answer:That only applies to highly polished surfaces, eg mirrors.

If you take a high quality laser (ie with low divergence) and aim it at a wall, you can see the spot where the laser beam reaches the wall from anywhere with a direct line-of-sight to the spot where the laser beam reaches the wall. This due to micro imperfections on the surface of the wall. At a microscopic level, the wall surface is very rough and pointing in all directions.

As to why, a beam of light bounces of a highly polished surface, I can only surmise that it is essentially due to kinematics, ie the only force opposing the light beam is normal to the surface, hence there no forces along the reflective surface. Since there are no forces along the reflective surface, the speed component of light along the reflective surface remains unchanged. However, on the plane perpendicular to the reflective surface the, the light photons bounce off at the same speed at which the hit the reflective surface because the mass of the reflective surface is much much much larger than the mass of the photons, which means that the reflective surface won’t move at all. Since conservation of momentum requires that momentum after the collision be the same as the momentum before the collision then the only way for that to happen is if the velocity of the photon perpendicular to the reflective surface is of exactly the same magnitude but in the opposite direction. Vector resolution of the speed component of the reflected beam means that the angle of reflection must be the same as the angle of incidence.

Explanation:

Answer:

A

Explanation:

The distance (d) at which sound from the speakers will first produce destructive interference at the listener's location depends on the wavelength of the sound waves and the relative phase difference between the speakers.

The frequency, wavelength, and distance between the speakers all affect when sound from speakers begins to cause destructive interference at the listener's position, or distance d. When two sound waves of the same frequency and amplitude are 180 degrees out of phase with one another, destructive interference results.

For constructive interference to happen, the distance between the speakers has to be an integer multiple of half the wavelength of the sound wave, and an odd multiple of a quarter of the wavelength for destructive interference. The frequency, wavelength, and distance between the speakers must all be known to calculate the distance d.

Learn more wavelength:

https://brainly.com/question/16051869

#SPJ4

Answer: H2CO3

Explanation:

Given that the speed of light in substance A is x times greater than the speed of light in substance B, the ratio of n_A to n_B in terms of x is:

n_A / n_B = 1 / x

Given that the speed of light in substance A is x times greater than the speed of light in substance B, we can represent this relationship as:

v_A = x * v_B

To find the ratio n_A / n_B in terms of x, we need to consider the refractive index formula:

n = c / v

Where n is the refractive index, c is the speed of light in a vacuum, and v is the speed of light in the medium.

For substance A:
n_A = c / v_A

For substance B:
n_B = c / v_B

Now, we'll divide n_A by n_B:

(n_A / n_B) = (c / v_A) / (c / v_B)

As c (the speed of light in vacuum) is constant, it cancels out:

(n_A / n_B) = (1 / v_A) * (v_B / 1)

We know that v_A = x * v_B, so let's substitute this:

(n_A / n_B) = (1 / (x * v_B)) * (v_B / 1)

The v_B terms cancel out: (n_A / n_B) = 1 / x

So the ratio of n_A to n_B in terms of x is: n_A / n_B = 1 / x

More on speed of light: https://brainly.com/question/29216893

#SPJ11

Answer:

See below.

Explanation:

When the 1500 kg car collides with the wall and rebounds at a speed of 5.00 m/s, we can calculate the change in the car's velocity using the following formula:

Δv = v2 - v1

Where Δv is the change in velocity, v2 is the final velocity, and v1 is the initial velocity. Substituting the given values, we get:

Δv = 5.00 m/s - 20.0 m/s

Δv = -15.0 m/s

The negative sign indicates that the direction of the car's velocity has reversed, or that the car is now moving to the left. To calculate the magnitude of the change in velocity, we take the absolute value:

|Δv| = |-15.0 m/s|

|Δv| = 15.0 m/s

Therefore, the magnitude of the change in velocity is 15.0 m/s.

Now,

To find the magnitude of the average force acting on the car during the collision, we can use the impulse-momentum theorem, which states that:

Impulse = change in momentum

Average force = Impulse / time

The change in momentum of the car is given by:

Δp = mΔv

where Δv is the change in velocity calculated in the previous answer and m is the mass of the car.

Δp = 1500 kg × (-15.0 m/s)

Δp = -22500 kg·m/s

The impulse acting on the car during the collision is equal to the change in momentum:

Impulse = Δp = -22500 kg·m/s

To find the magnitude of the average force acting on the car during the 250 ms collision, we divide the impulse by the duration of the collision:

Average force = Impulse / time

Average force = -22500 kg·m/s / 0.250 s

Average force ≈ -90,000 N

The negative sign indicates that the force is in the opposite direction of the car's motion, or to the left. Therefore, the magnitude of the average force acting on the car during the collision is approximately 90,000 N.

The wild offers more natural structures and temperatures that keep animals adapted to their surroundings. However, in captivity animals tend to differ from their wild counterparts. For one thing, the wild cultivates an animal's hunting skills but, when or if they are releasing into the wild, they do not know what to do whereas they have been sheltered their entire life. They don't know how to find natural structures to keep warm in, what places are safe or even survival strategies. The conditions in the wild teach an animal to survive while the conditions from man-made structures just give them an easy survival.

Hope this helps and have a nice day.

-R3TR0 Z3R0

Answer:

As altitude increases and atmospheric pressure decreases, the boiling point of water decreases.

The net force acting on the car is 65 N to the left

The net force acting on an object is simply defined as the resultant force acting on the object.

From the question given, we obtained the following data:

The net force acting on the car can be obtained as follow:

Fₙ = Fₗ – Fᵣ

Fₙ = 315 – 250

Therefore, the net force acting on the car is 65 N to the left

Learn more on net force: https://brainly.com/question/19549734

Since there is no friction, the net force on the car in the x - direction will be 65 Newtons

Given that Dave and Alex push on opposite ends of a car that has a mass of 875 kg.

Dave pushes the car to the right with a force of 250 N, which is positive direction and Alex pushes to the left with a force of 315 N which is negative direction. Since there is no friction, only the horizontal forces will be considered.

To calculate the net force on the car in the x-direction, we will find the difference between the two forces because of their directions are opposite to each other.

Net force = 315 - 250

Net force = 65 Newtons

Therefore, the net force on the car in the x - direction will be 65 Newtons

Learn more about resolution of forces here: https://brainly.com/question/11556949

Answer:

P.E.= 12.348 joules

K.E.=1.26 joules

Explanation:

Answer:

Below

Explanation:

F = m a

F/a = m

350 N / 9.81 m/s^2 = 35.7 kg

if An object has a weight of 350N on Earth Then the mass of the object is approximately 35.67 kg.

The weight of an object is the force exerted on it due to gravity. The weight is given by the formula:

Weight = mass × acceleration due to gravity

On Earth, the acceleration due to gravity is approximately 9.81 m/s^2. Therefore, we can calculate the mass of the object by rearranging the formula:

mass = weight/acceleration due to gravity

Substituting the given weight of 350N, we get:

mass = 350 N / 9.81 m/s²

mass ≈ 35.67 kg

Therefore, the mass of the object is  35.67 kg.

To learn about  kinetic energy click:

https://brainly.com/question/26472013

#SPJ2