John often sees squiggly lines when he looks at a bright sky or white paper. His doctor says that they are called eye floaters, which are small bits of protein in the fluid that fills the eyeball.
In what part of the eye are eye floaters found?
a) cornea
b) vitreous humor
c) retina
d) convex lens

Answer:

[tex]T_f=24.71[/tex]

Explanation:

From the question we are told that:

Mass of block [tex]m=50[/tex]

Temperature of block [tex]T_b =140 \textdegree C[/tex]

Volume of water [tex]V= 90L[/tex]

Temperature of water [tex]T_w=10 \textdegree C[/tex]

Density of water [tex]\rho=1000kg/m^3[/tex]

Specific heat of water [tex]C_w=4.18KJ/kg-k[/tex]

Specific heat of copper [tex]C_p=0.96KJ/kg-k[/tex]

Generally the equation for equilibrium stage is mathematically given by

[tex]mC_p(T_b-T_f)=\rho*VV*c(T_f-T_w)[/tex]

[tex]50*0.96(140-T_f)=1000*90*10^-3*c_w(T_f-10)[/tex]

[tex]48(140-T_f)=376.2(T_f-10)[/tex]

[tex]140-T_f=7.8375(T_f-10)[/tex]

[tex]140-T_f=7.8375T_f-78.375[/tex]

[tex]-8.8375T_f=-218.375[/tex]

[tex]T_f=\frac{-218.375}{-8.8375}[/tex]

[tex]T_f=\frac{-218.375}{-8.8375}[/tex]

[tex]T_f=24.71[/tex]

Answer:

The frequency is 0.25Hz and the period is 4s

Explanation:

To solve this we can use the formula: [tex]f = \frac{v}{\lambda}[/tex], where f=frequency, v=velocity and lambda = wavelength.

In the question, we are given the information that the velocity of the wave is 6.5m/s and the wavelength is 26 meters long. By putting these values into the formula, we can find the frequency:

[tex]f=\frac{6.5}{26} \\f= 0.25Hz[/tex]

Period is the inverse of frequency: [tex]T=\frac{1}{f}[/tex]

Therefore the period is: [tex]T = \frac{1}{0.25} \\T = 4s[/tex]

Hope this helped!

Answer:

with fuel

Explanation:

Answer:

you can add more energy to the car by launching it again.

Explanation:

Answer:

Juno scientific payload includes:

Explanation:

Each mission of NASA has a specific set of instruments that it uses to perform scientific experiments on the desired heavenly body. In case of Juno, the mission for Jupiter has a series of instruments that would study domains of gravitational forces, magnetic effect, particle detection, radiation detection, UV/IR imaging, and plasma experiments.

Answer:

skateboard mid-ollie is being actively steered. This is exactly what makes doing an ollie so hard. It's not enough to get the skateboard up into the air - you also have to steer it while it's in the air. You should keep your hands up in the hair a bit to help with balance, scrunch your legs a bit down to have a proper and effective jump. wear nee pads incase you dont fix the landing. Practice jumping on ur skate board tho, if u jump at it without knowing much youll just get hurt.

Explanation:

Answer:

I’d say stuffy. It has the most negative connotation of all the options .

Mark Brainlest please!

Answer:

A

Explanation:

circular motion means the object will follow a circular trajectory.

Answer:

the answer for the question is option A

Answer:

(1) The gravitational forces are inversely proportional to the square of the distance between the objects. More is the distance between the objects , less will be the gravitational force between them.

(2) The gravitational forces are the weakest of all the four fundamental forces (Nuclear forces, weak forces, electromagnetic forces, gravitational forces) in nature.

(3)Gravitational forces are always attractive . They are also conservative in nature. work done by these forces or against these forces doesn't depend on the path followed.

Explanation:

Answer:

uhm you can get all these answers from go ogle but just so you dot get in trouble click the tree dots at the top right of your screen (this is if your using crome) and go to history click the square and there should be a delete thing

Explanation:

Answer:

4. I and II   9. tornado

Explanation:

Answer:

nucleus

hope this helps

have a good day :)

Explanation:

Answer:

option c) nucleus

Explanation:

hope it helps ❤️

Answer:

what are the A B C D E

Explanation:

Answer:

It is true that Smaller the surface area greater the gravitational force and vice versa

Explanation:

The gravitational force depends on the distance between the two objects

F=GMm/r2

where G = gravitational constant

M = mass of one object

m = mass of second object

r is the distance between the two objects

Gravitational force is inversely proportional to the square of the distance between two objects. Hence, it can be said the Gravitational force is inversely proportional to the area and hence as the area increases gravitational force will decrease or vice versa

Answer:

The speed at which a planet orbits the Sun changes depending upon how far it is from the Sun. When a planet is closer to the Sun the Sun’s gravitational pull is stronger, so the planet moves faster. When a planet is further away from the sun the Sun’s gravitational pull is weaker, so the planet moves slower in its orbit.

Answer:

0.1m/s²

Explanation:

Using the equation of motion

V = u+at

V is the final speed = 0.9m/s

Initial speed u = 0.5m/s

Time = 4secs

Get the acceleration

0.9 = 0 5+4a

0.9-0.5 = 4a

0.4 = 4a

a = 0.4/4

a = 0.1m/s²

Hence the acceleration is 0.1m/s²

Answer: Thanks for the points!

Explanation:  The average amount of energy passing through a unit area per unit of time in a specified direction is called the intensity of the wave. As the amplitude of the sound wave increases, the intensity of the sound increases. Sounds with higher intensities are perceived to be louder.

Answer:

Amplitude

Explanation:

Answer:

Because here is a number of electrons more applied to the balloon

Raising the temperature results in the radiator giving off photons of high-energy ultraviolet light. As heat is added, the radiator emits photons across a wide range of visible-light frequencies

Answer:

Wait what is the distance of the water from the br

The speed of the penny drops of a bridge just before it hits the water is 11.76 ms⁻¹.

Given,

Time, t = 1.2 s

The initial velocity (u), final velocity (v), acceleration (a), displacement (s), and time (t) of an object traveling with constant acceleration are related by the first equation of motion, often known as the first kinematic equation or the equation of motion with constant acceleration.

From the first equation of motion:

v = u + at

Since the initial velocity is zero. The final velocity is:

v = at

v = (9.8 ) × (1.2 s)

v = 11.76 ms⁻¹

Hence, the speed of the penny drops of a bridge just before it hits the water is 11.76 ms⁻¹.

To learn more about Speed, here:

https://brainly.com/question/17661499

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Answer:

450N

Explanation:

Work done=Force*distance

For the wood crate to move, the force applied (minimum horizontal force) must be greater than the static friction between the wood crate and the wood floor

Given that Jim wishes to push a 100. N wood crate across a wood floor.

The weight of the wood = 100N

The weight will produce a normal reaction N which is equal in magnitude to the magnitude of the weight. That is,

N = mg = 100N

For the wood crate to move, the force applied must be greater than the static friction between the wood crate and the wood floor.

Static friction = μN

Where μ = static friction.

Therefore, the minimum horizontal force that would be required to start the crate moving depend on the nature of the surface of the wood floor.

Learn more about Friction here: https://brainly.com/question/13940648

Answer:

 #_electrons = 2 10¹⁰ electrons

Explanation:

For this exercise we can use a direct rule of three proportions rule. If an electron has a charge of 1.6 10⁻¹⁹ C how many electrons have a charge of 3.2 10⁻⁹ C

          #_electrons = 3.2 10⁻⁹ ( [tex]\frac{1}{1.6 \ 10^{-19}}[/tex])

          #_electrons = 2 10¹⁰ electrons

Answer:

v₁ = 1.78 m/s

Explanation:

We can use the law of conservation of momentum here, as follows:

[tex]m_1u_1 + m_2u_2 = m_1v_1 + m_2v_2[/tex]

where,

m₁ = mass of first object = 4.5 kg

m₂ = mass of second object = 6.2 kg

u₁ = initial speed of first (smaller) mass = 16 m/s

u₂ = initial speed of second (larger) mass = 0 m/s

v₁ = final speed of first (smaller) mass = ?

v₂ =  final speed of second (larger) mass = 10 m/s

Therefore,

[tex](4.5\ kg)(16\ m/s)+(6.2\ kg)(0\ m/s)=(4.5\ kg)(v_1)+(6.2\ kg)(10\ m/s)\\70\ kgm/s - 62\ kgm/s = (4.5\ kg)v_1\\\\v_1 = \frac{8\ kgm/s}{4.5\ kg}\\\\[/tex]

v₁ = 1.78 m/s

Answer:

A. Moon

Explanation:

The Moon is hundreds of thousands of miles away from the Earth while the other options are hundreds of millions of miles away.

Answer:

Aircraft never crash because of one single issue. It's almost always a combination of factors that lead to an accident. Whilst flying is extremely safe, typical reasons why planes crash include pilot error, technical failures, bad weather, terrorism, and pilot fatigue.

Answer The force of the air pushing up on the plane is

equal to the force of gravity pulling down on the

plane.

Answer:

The mass of the solution is 120 g.

Explanation:

The mass of the solution is given by:

[tex] m_{sol} = m_{1} + m_{2} [/tex]

Where:

[tex]m_{sol}[/tex]: is the mass of the solution

[tex]m_{1}[/tex]: is the mass of the solvent

[tex]m_{2}[/tex]: is the mass of the solute

In the solution, the solvent is the majority compound (in mass) and the solute is the minority (in mass), so the solvent is the water and the solute is sodium chloride.          

Hence, the mass of the solution is:

[tex] m_{sol} = m_{1} + m_{2} = 100 g + 20 g = 120 g [/tex]  

I hope it helps you!                  

Answer: 5.39g/L

Explanation:

We need to calculate the average molar mass of the mixture which will be:

= (10 × 32) + (50 × 40) + (40 × 244) / 100

= (320 + 2000 + 9760) / 100

= 12080 / 100

= 120.8g/mol

Since the volume occupied is 22.4L and 1 mole of the gas will occupies 22.4L given the standard temperature conditions, then the density of the mixture will be:

= Mass / volume

= 120.8 / 22.4

= 5.39g/L

Therefore, the density of the mixture will be 5.39g/L.

Answer: Your body sliding against the car seat created friction, making it created potential energy. The friction is a form of electricity, and the car doors metal is a conductor of electricity. That potential energy was turned into kinetic once the metal attracted the electricity, thus making a spark.

Hope this helps ^_^

Answer:

Hooke's law can be written as:

F = -k*Δx

Where k is a constant that depends on the spring, called the spring constant.

And Δx = (x - x₀) is the displacement of the spring with respect to the rest position x₀

And a proportional equation is something like:

y = c*x

Where c is a constant of proportionality.

In the case of Hooke's law, the constant is K, then the force is proportional to the displacement of the spring with respect to the rest position Δx.