What happens when a unstoppable object hits an immovable.

Hence, 150x would be the greatest achievable particle magnification for this telescope.

It is the product of the focal length of the telescope and the focal length of the eyepiece. The highest usable magnification of a telescope is 50 times its aperture in inches as a general rule (or twice its aperture in millimeters).

The maximum practical magnification of a telescope is determined by several factors,

Using this rule, the maximum practical magnification for a 3-inch telescope with a focal length of 1000 mm would be approximately:

50 x 3 =

150x

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Mutations occur in the genetic material due to alterations in the sequence of nucleic acids of the genome. Mutations are harmful as they lead to many disorders and conditions which are life-threatening.

A mutation can be defined as an alteration in the sequence of nucleic acids of the genome of a living organism, virus, or the extrachromosomal DNA material such as the mitochondrial DNA or the chloroplast DNA. Viral genomes are different from that of other living organisms as they contain either DNA or RNA as genetic material.

The guanine-thymine (G-T) mutation is the single most common mutation which occurs in the DNA of human. This mutation occurs about once in every 10,000 to 100,000 base pairs in the DNA.

Mutations are of different types. From which, the deletion mutations are opposite types of point mutations. These mutations involve the removal of a base pair from the sequence. Both of these mutations lead to the creation of one of the most dangerous type of point mutations which is known as the frameshift mutation.

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(a) To calculate the distance to ξ1 Cen, we would need additional information such as the parallax angle or other distance indicators. Without such information, it is not possible to calculate the distance accurately. Therefore, we cannot determine the distance to ξ1 Cen without the necessary data.

(b) The parallax of NGC4945, and therefore the supernova, can be calculated if we have the parallax angle. The parallax angle is the apparent shift in position of an object observed from different vantage points as the Earth orbits the Sun. It is typically measured in arcseconds.

To calculate the parallax, we use the formula:

Parallax (in arcseconds) = 1 / Distance (in parsecs)

If we have the parallax angle, we can invert the formula to calculate the distance:

Distance (in parsecs) = 1 / Parallax (in arcseconds)

However, the parallax angle of NGC4945 is not provided, so we cannot calculate the parallax or the distance to NGC4945.

(c) Making parallax observations of the supernova would not be a useful way to confirm the distance to NGC4945. Parallax measurements require precise observations of the apparent shift in position of an object over time, which is typically measured in small fractions of arcseconds. Supernovae, on the other hand, are extremely distant objects, often located in other galaxies, making their parallax angles very small and challenging to measure accurately.

To confirm the distance to NGC4945, other distance indicators such as Cepheid variables, supernova luminosity-distance relations, or redshift measurements would be more reliable and commonly used methods. These techniques provide more robust and accurate distance measurements for objects located at significant distances in the universe.

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According to the statement, as the weight of the brick pushes down on the inclined plane, the inclined plane pushes up against the brick. This upward force is called the normal force.

Thus, the normal force in the scenario described above is the force applied by the inclined plane on the brick in a direction perpendicular to the surface of contact between the two entities.

A force is known as the Normal Force when the force is perpendicular to the surface. The normal force is often symbolized by N and expressed in newtons. A surface that is perpendicular to a force is the one where the normal force acts. The normal force is the force applied perpendicular to a surface to prevent an object from sinking into it or passing through it.

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Answer: A thesis statement states the main idea of an essay or assignment.

Explanation: A thesis statement is put in the introduction of a writing assignment to tell the reader the opinion or judgement of the writer. What the writer infers about a book or personal experience. Examples are argumentative essays or literary device essays.

Answer:

sẽ càng lớn

Explanation:

The equilibrium temperature when equal masses of the first and third liquids are mixed is 24.5°C.

Equilibrium temperature is the temperature at which two or more substances, initially at different temperatures, attain the same final temperature when brought into thermal contact without any heat loss to the surroundings. It represents the state of thermal equilibrium between the substances.

Let the specific heat capacity of the liquids be denoted by C, and the masses of each be m.

For the first mixing, the heat lost by the hotter liquid (36°C) is equal to the heat gained by the colder liquid (13°C). Thus:

C * m * (36 - T) = C * m * (T - 13)

where T is the equilibrium temperature. Solving for T, we get:

T = (36 + 13)/2 = 24.5°C

For the second mixing, we have:

C * m * (T - 22) = C * m * (36 - T)

Solving for T, we get:

T = (22 + 36)/2 = 29°C

Finally, for the mixing of the first and third liquids, we have:

C * m * (T - 13) = C * m * (36 - T)

Solving for T, we get:

T = (13 + 36)/2 = 24.5°C

Therefore, When the first and third liquids are combined in equal masses, the equilibrium temperature is 24.5°C.

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On a wet road, you would need to adjust your speed to 5-10 mph slower than normal.So option a is correct.

On a wet road, you should adjust your speed to ensure that you can drive safely. This is because water causes tyres to lose traction with the road. If you increase your speed on a wet road, you'll have less control over your vehicle. When the road is wet, your vehicle's tyres may not be able to grip the road as well as they would on a dry road.When driving on wet roads, you should maintain a safe distance between your vehicle and the car in front of you. This provides you with enough space to stop safely if the car in front of you stops suddenly.In addition, when driving on wet roads, it's best to avoid sudden steering or braking movements. This will cause your car to skid. Therefore, you should slow down and move more gently on a wet road, and always adjust your speed to 5-10 mph slower than normal.Therefore option a is correct.

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Answer:

DU = -80 Joules

Explanation:

Given the following data;

Work done = 100 J

Quantity of heat = 20 J

To find change in internal energy of the gas;

Mathematically, the change in internal energy of a system is given by the formula;

DU = Q - W

Where;

DU is the change in internal energy.

Q is the quantity of energy.

W is the work done.

Substituting the values into the formula, we have;

DU = 20 - 100

DU = -80 Joules

Therefore, the final energy of the gas is lower than its initial energy.

Answer:

energy left over from the big bang

Explanation:

Answer:

300 Hz.

Explanation:

The frequency of a sound wave is the same as that of the source. For example, a tuning fork vibrating at a given frequency would produce sound waves that oscillate at the same frequency.

The frequency that you will hear when the tuning fork is stuck against a table is 300 Hz.

Frequency is a measurement of how often a repetitive event occurs in a given amount of time. It is commonly used to describe the rate at which waves oscillate or vibrate. The unit of frequency is hertz (Hz), which represents the number of cycles or oscillations per second.

For example, in the case of sound waves, frequency is related to the pitch of the sound. Higher frequency sound waves have a higher pitch, while lower frequency sound waves have a lower pitch. Similarly, in the case of electromagnetic waves such as light, frequency is related to the color of the light. Higher frequency electromagnetic waves correspond to colors such as blue and violet, while lower frequency electromagnetic waves correspond to colors such as red and orange.

The relationship between frequency, wavelength, and the speed of the wave is given by the formula:

frequency = speed of the wave / wavelength

This formula shows that the frequency of a wave is inversely proportional to its wavelength, assuming the speed of the wave remains constant. In other words, as the wavelength of a wave increases, its frequency decreases, and vice versa.

Frequency is an important concept in many fields, including physics, engineering, and communications. It is used to describe and analyze a wide range of phenomena, from the behavior of sound and light waves to the performance of electronic circuits and systems.

Here in the Question,

When a tuning fork is struck against a table, it vibrates at its natural frequency, which is determined by its physical properties such as its mass, shape, and material. The vibration of the tuning fork creates sound waves that travel through the air, and our ears perceive these waves as sound.

The frequency of the sound that we hear depends on the frequency of the sound waves that reach our ears. When the sound waves from the tuning fork travel through the air, they undergo a phenomenon called the Doppler effect, which causes the frequency of the sound waves to change depending on the relative motion between the source of the sound waves (the tuning fork) and the observer (our ears).

If the tuning fork is stuck against a table and is not moving relative to the observer, the frequency of the sound waves that reach our ears will be the same as the natural frequency of the tuning fork, which is given as 300 Hz in this case.

Therefore, the frequency that you will hear when the tuning fork is stuck against a table is 300 Hz.

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Yes I agree. The socio historical concept implies that race is created and maintained through systems of power and inequality.

According to Michael Omi and Howard Winant, in "Racial Formations," race is a socio-historical concept that is constructed through the intersection of cultural, political, and economic forces.

In this book, they argue that race is not an immutable, biologically determined characteristic of individuals or groups but rather a social construct that is created and maintained through systems of power and inequality. The authors illustrate how race is constructed through examples from different historical periods and social contexts.

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Rinse chemicals from your hands and arms with water in the sink

In the chemistry lab we use to work with chemical solutions, because of that we must learn what is the best way to manipulate the chemicals with we are going to work, so an proper way to maintain our hands and arms clean is using the lab's sink in order to wash our hands and arms with enough water

In chemistry a solution is known as a homogeneous mixture of two or more components called:

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Explanation: Research highlights the individuals with ASDS are nutritionally vulnerable because they exhibit a selective or pick eating pattern and sensory sensitivity that predisposes them to restricted intakes.

I hope this helps!

The seven types of waves are radio waves, microwaves, infrared, visible,  ultraviolet rays, x-rays and gamma rays.

The electromagnetic spectrum is a broad spectrum consisting of various waves. It contains very long radio waves to very short gamma rays. However, the human eye can detect only a small portion of this spectrum called as visible light.

The other waves that are invisible to the eye have their applications in various fields.

For example, radio waves have the longest waves on the spectrum and are said to have lowest energy. An MRI machine uses these waves to see tissues and bones up close.

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i don't know.

Explanation:

because i don't want responde

Answer:

An anode is an electrode through which conventional current (positive charge) flows into the device from the external circuit, while a cathode is an electrode through which conventional current flows out of the device.

Explanation:

a. Because the spring is storing potential energy as elastic potential energy, the ball-spring system gains potential energy as the spring is squeezed.

Correct response: B) obtained potential energy.

b. The ball-spring system generates kinetic energy and loses potential energy as the spring expands because the ball's movement transforms the potential energy contained in the spring into kinetic energy.

Answer: A) loses potential energy while gaining kinetic energy.

c. Due to the effort done by gravity as the ball moves up the ramp, it obtains potential energy while losing kinetic energy, increasing its potential energy while lowering its kinetic energy.

A) loses kinetic energy and acquires potential energy.

d. Due to the effort done by gravity as the ball descends to the ground, it receives kinetic energy while losing potential energy, increasing its kinetic energy while lowering its potential energy.

Answer: A) loses potential energy while gaining kinetic energy.

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The capacitance of the given capacitor is approximately 2.3 × 10^(-10) F. Therefore, the correct answer is A.

The capacitance of a parallel-plate capacitor can be calculated using the formula:

C = ε₀ * (A / d)

where C is the capacitance, ε₀ is the vacuum permittivity (approximately 8.85 × 10^(-12) F/m), A is the area of one plate, and d is the separation distance between the plates.

Given that the radius of each plate is 2.5 mm, we can calculate the area using the formula for the area of a circle:

A = π * r^2

where r is the radius.

Substituting the values into the formulas, we have:

A = π * (2.5 mm)^2 = π * (2.5 mm)^2 ≈ 19.63 mm²

Note: It's important to convert the units to meters before performing the calculations.

The separation distance between the plates is given as 0.75 mm, which is equal to 0.75 * 10^(-3) meters.

Now, we can calculate the capacitance:

C = ε₀ * (A / d) = (8.85 × 10^(-12) F/m) * (19.63 * 10^(-6) m² / 0.75 * 10^(-3) m)

C ≈ 2.3 × 10^(-10) F

Therefore, the capacitance of the given capacitor is approximately 2.3 × 10^(-10) F.

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The brakes do

W = ∆K = 0 - 1/2 (1800 kg) (40 m/s)² = -1.44 MJ (megaJoules)

of work on the car to stop it. They apply a negative force since the braking opposes the car's forward displacement, so the car stops over a distance x such that

W = (-24.6 kN) x   ==>   x ≈ 58.5 m

The spring constant is 19.62 N/m. The period of oscillation is approximately 0.91 s.

F = mg

F = (0.08 kg)(9.81 m/s²) = 0.7848 N

k = F/x = 0.7848 N / 0.04 m = 19.62 N/m

b) To find the period of oscillation, we can use the formula:

T = 2π√(m/k)

T = 2π√(0.08 kg / 19.62 N/m) ≈ 0.91 s

The period of oscillation is approximately 0.91 s.

C). The amplitude and period can be determined from the graph by measuring the distance between successive peaks (or troughs) and the time it takes for one complete cycle.

y-axis (position) in meters

 |

0.04|                       /\              

   |                      /  \              

   |                     /    \            

   |                    /      \            

   |                   /        \          

   |                  /          \          

   |                 /            \        

   |                /              \        

   |               /                \      

   |              /                  \      

-0.04|-------------|--------------------> t-axis (time) in seconds

         0       T      2T         3T

The spring constant is a physical quantity that measures the stiffness of a spring. It is defined as the ratio of the force applied to a spring to the resulting displacement of the spring. The spring constant is denoted by the letter k and has units of newtons per meter (N/m) in the International System of Units (SI).

The spring constant is an important concept in physics, as it is used to describe the behavior of springs in a variety of applications, including mechanical systems, electronics, and optics. It is also used to describe the behavior of other elastic materials, such as rubber bands and certain types of metals. The spring constant is directly proportional to the stiffness of a spring, meaning that a higher spring constant corresponds to a stiffer spring. This relationship is described by Hooke's law, which states that the force exerted by a spring is proportional to the displacement of the spring from its equilibrium position.

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Answer:

42.11 years old

Explanation:

Given that:

In 2000, a 20-year-old astronaut left Earth to explore the galaxy; her spaceship travels at 2.5 x 10^8 m/s. She returns in 2040

To find her age we use:

\(\Delta t_m=\frac{\Delta t_s}{\sqrt{1-\frac{v^2}{c^2} } }\\\)

Δtm is  time interval for the observer stationary relative to the sequence of

events = 2040 - 2000 = 40 years

Δts is is the time interval for an observer moving with a speed v relative to the  sequence of event

v = velocity = 2.5 x 10^8 m/s

c = speed of light = 3 x 10^8 m/s

\(\Delta t_s=\Delta t_m}{\sqrt{1-\frac{v^2}{c^2} } }\\\Delta t_s=40\sqrt{1-\frac{(2.5*10^8)^2}{(3*10^8)^2}}\\\Delta t_s=22.11\ yr\)

Here age in 2000 is 20 year, therefore when she appear she would be 20 year + 22.11 year = 42.11 years old

To construct an open rectangular box with maximum volume, the dimensions should be such that the length, width, and height are equal.

To find the dimensions that result in a box of maximum volume, we need to consider the relationship between the dimensions and the volume of the box. Let's assume the length of the box is L, the width is W, and the height is H. Since the box is open, it does not have a top surface.

The volume of a rectangular box is given by the formula V = L * W * H. However, in this case, we have a constraint that the material used to construct the box has a fixed amount, so the total surface area of the box must be constant. The surface area of an open rectangular box is given by A = 2LW + LH + WH.

To find the dimensions that maximize the volume, we need to find the critical points of the volume function. By applying the constraint of constant surface area, we can express one of the dimensions in terms of the other two using the surface area formula. Substituting this expression into the volume formula, we obtain a function that depends on two variables. Taking the derivative of this function and setting it to zero, we can solve for the critical points.

By solving the equations, we find that the dimensions resulting in a box of maximum volume are when the length, width, and height are all equal. In other words, the box is a cube. This is because a cube maximizes the volume within the given constraints, as any deviation from equal dimensions would result in a smaller volume.

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Answer:

icebergs float on water because ice is less dense than water. The same is true for a boat: a boat floats on water because, overall, it is less dense than the water.

Explanation:

Answer:

(D) 421 kPa

Explanation:

The absolute pressure of the tire is equal to the pressure measured plus the atmospheric pressure of 101 kPa. Then, the absolute pressure is

P = 320 kPa + 101 kPa

P = 421 kPa

So, the answer is

(D) 421 kPa

Answer:

0.51 %

Explanation:

Calculated value of the amount of oxygen is 3.9 g

Theoretical value of amount of oxygen is 3.92 g

We need to find the percent error in this experiment. It is given by the difference in theoretical and Calculated value divided by theoretical and multiplying it by 100. So,

\(E=\dfrac{3.92-3.9}{3.92}\times 100\\\\E=0.51\%\)

So, the percentage error is 0.51 %.

Answer:

Vf₂ = 2 Vf₁

It shows that final speed of Joe is twice the final speed of Jim.

Explanation:

First, we analyze the final speed of Jim by using first equation of motion:

Vf₁ = Vi + at

where,

Vf₁ = final speed of Jim

Vi = initial speed of Jim = 0 m/s

a = acceleration of Jim

t = time of acceleration for Jim

Therefore,

Vf₁ = at   ---------------- equation (1)

Now, we see the final speed of Joe. For Joe the parameters will become:

Vf = Vf₂

Vi = 0 m/s

a = a

t = 2t

Therefore,

Vf₂ = 2at  

using equation (1):

Vf₂ = 2 Vf₁

It shows that final speed of Joe is twice the final speed of Jim.

Explanation:

The periscope is used in the submarines to see what is going on the water surface.

It is also used in some gun turrets and it is used in armed vehicles.

✨Hope it helps.✨

Answer:

Explanation:

The Horizontal velocity is expressed as:

Vx = -V cos 30

Vx = -150cos30

Vx = -150(0.8660)

Vx = -129.90m/s

The vertical component of the velocity is expressed as:

Vy = V sin 30

Vy = 150sin30

Vy = 150(0.5)

Vy = 75m/s

The vector notation of the marble is A = 45 i(cap)

The quantities which have both magnitude and direction are called vectors. Examples are velocity, force, displacement, weight, acceleration, etc.

If two vectors act along two adjacent sides of a parallelogram having a magnitude equal to the length of the sides, both pointing away from the common vertex, then the resultant is given by the diagonal of the parallelogram passing through the same common vertex and in the same sense as the two vectors.

Given a marble rolls from origin in east direction. So, clearly it is on x-axis.

Let A be a vector representing it. It rolls upto 45m .

i.e. it's vector notation is : A= 45 i(cap)

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