17 . if the maximum force the biceps muscle can exert is 1000 n, can we pick up an object that weighs 1000 n? explain your answer.

The distance from fourth maximum to the central maximum is, y₄ = 3.2 cm

Diffraction is defined as the interference or bending of waves passing through an aperture around the corner of an obstacle or into the geometric shadow area of ​​the obstacle/aperture. Diffractive objects or apertures are secondary sources of propagating waves. It is the process by which a ray or other wave system widens as a result of passing through a narrow aperture or edge. It usually involves interference between the generated waveforms.

Given,

λ = 550 nm

y₃ = 3Dλ/d

y₃ = 3 cm

3Dλ/d = 3 cm

D/d = (3 × 10⁻²)/3λ

Since, λ = 550 nm

D/d = (3 × 10⁻²)/(3×550×10⁻⁹)

D/d = 10⁶/55

Now, λ = 440 nm

y₄ = 4Dλ/d

y₄ = 4 (440×10⁻⁹) 10⁶/55

y₄ = 3.2 cm

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Xylitol is the alcohol derivative of xylose in which the aldehyde group of xylose is reduced to alcohol.

Xylitol is the alcohol derivative of xylose in which the aldehyde group of xylose is reduced to alcohol.

The structure of the Xylitol is given below:-

    CH₂OH

         |

 H......|.........OH

OH.....|..........H

H ..... |.........OH

         |
    CH₂OH

Therefore Xylitol is the alcohol derivative of xylose in which the aldehyde group of xylose is reduced to an alcohol.

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Answer:

Fall

Explanation:

Archimedes' Principle

\(\\ \sf\longmapsto (side)^3\)

\(\\ \sf\longmapsto (5)^3\)

\(\\ \sf\longmapsto 125cm^3\)

Now

\(\\ \sf\longmapsto Density=\dfrac{Mass}{Volume}\)

\(\\ \sf\longmapsto Density=\dfrac{750}{125}\)

\(\\ \sf\longmapsto Density=7g/cm^3\)

Io is the planet in the solar system with the highest level of volcanic activity. Option c is Correct.

Io was given her name in honor of a Zeus-favored. Zeus attempted to conceal her from his envious wife, Hera, in the Greek tale by transforming her into a thing. One of the four Galilean satellites, Io was found by Simon Marius and Galileo Galilei in 1610.

The most volcanically active globe in the solar system is the moon Io. On the surface of Io, there are even lakes of molten silicate lava. As of today, we are aware that volcanoes can be located on Mercury, Venus, Earth, the Moon, Mars, and the moon Io of Jupiter. Only two of these bodies—Earth and Io—have active volcanoes at the moment.  Option c is Correct.

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Answer:

Mars is an opportunity for humans to carry forward the light of consciousness, plus it is the closest planet like earth, it has land humans can land on and although its small, theres still water

Thermal insulation reduces unwanted heat loss and also reduces unwanted heat gain.

Insulation creates a barrier between the hot and the cold object by reducing heat transfer by either reflecting light radiation.

Insulating materials are bad conductors of electricity and heat. So, insulating reduces the heat loss via conduction.

Thermal energy is prevented to increase the temperature of building in summers and decrease in winters. The thermal energy transfer plays vital role in insulating a building.

Thus Thermal insulation reduces unwanted heat loss and also reduces unwanted heat gain.

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Answer: B

Explanation:

Hopes this helps!!

Answer:

B

Explanation:

The answer is that the easiest method to obtain and yields the most accurate measure of the entire mass of the Milky Way galaxy is by using the orbits of stars around the central supermassive black hole.

This method, known as stellar dynamics, involves measuring the velocities and positions of stars over a long period of time and using this data to calculate the gravitational pull of the central black hole.

This method is the most accurate because it takes into account the entire mass of the galaxy, including dark matter, and has been used by the UCLA astronomers to measure the mass of the black hole at the center of our galaxy.

Other methods, such as measuring the rotation curve of the galaxy or using gravitational lensing, can also provide estimates of the galaxy's mass, but they do not take into account the entire mass of the galaxy and can be affected by uncertainties in the distribution of matter.

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In Sound Navigation and Ranging (SONAR), the sound wave is transmitted through water and it will reflect by hard surfaces. Option B) is correct.

SONAR is used to create nautical charts, find underwater navigation hazards, search for and map things on the seafloor such as shipwrecks and map the seafloor itself, waves are transmitted into the waver and reflected by hard surfaces.

The transmission and receiving of sound waves are involved in active sonar. For example, when a submarine is used to map the topography of the ocean floor.

It emits sound pulses known as pings towards the bottom of the ocean in its area.

Thus, 'Sound is transmitted through water and reflected by hard surfaces is the correct option'.

The question is incomplete. The options are missing in the question. They are A) Sound is transmitted through the water and diffracted by hard surfaces. B) Sound is transmitted through the water and reflected by hard surfaces. C) Sound is diffracted through the water and transmitted by hard surfaces. D) Sound is diffracted through the water and reflected by hard surfaces.

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hi brainly user! ૮₍ ˃ ⤙ ˂ ₎ა

⊱┈────────────────────────┈⊰

\(\large \bold {ANSWER}\)

✏️ The value of kinetic energy is 400000 J.

\(\large \bold {SOLUTION}\)

Solve by applying the kinetic energy formula, where Ec is kinetic energy, m is mass, v is velocity in m/s. Remember that 72 km/h is 20 m/s.

\(\begin{gathered}\Large \text {$ \sf Ec = \dfrac {m \times v^2}{2} $}\\\\\Large \text {$ \sf Ec = \dfrac {2000 \times 20^2}{2} = 400000 $ J}\end{gathered}\)

Answer:

400 000 joules

Explanation:

Kinetic energy is measured in joules which has units of  kg - m^2 / s^2

so you will need to convert 72 km/hr to   m/ s

   =    72000 m / 3600 s = 20 m/s

KE = 1/2 m v^2

    = 1/2 (2000)(20^2) = 400 000 Joules

ANSWER

7.95 m/s

EXPLANATION

The least initial velocity is the one for which when the object reaches the height of the platform its velocity is zero. From the velocity equation we have,

If v = 0,

To find the velocity we have to find the time. From the displacement equation,

Replace v0 by the expression above,

We know that the height of the platform is 3.2m. Solving this equation for t,

If the object is in the air for 0.81 seconds before reaching the platform, its initial velocity is,

The least initial velocity needed from ground level for the object to reach the platform is 7.95 m/s

The mass of the object is: 100 kg

It is the physical magnitude that expresses the effort necessary to move the mass of one kilogram with an acceleration of one meter per second squared, this is expressed in units of the international system in Newton.

To solve this exercise, the formula and procedure to be applied is:

F = m * a

Where:

Information about the problem:

Applying the force formula and isolating the mass, we get:

F = m * a

m= F/a

m= 5.0x 10^2 n /5.0 m/s²

m= 100 kg

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The characteristics of image formed is a real, inverted, highly magnified image and at infinity.

The following are the general properties of image formed by a convex lens when the object is placed at focal point of the lens;

Thus, when an object is placed at the focal point of a convex lens, the image formed is a real, inverted, highly magnified image and at infinity.

These properties can be seen in the ray diagram attached to this solution.

To construct the ray diagram, draw a line from the top of the image through the focal point and principal axis.

If you look at the lens diagram carefully, you will notice that;

So the object is placed at the focus of the lens.

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Answer:

40m

Explanation:

40m

I dont see the question to this

Answer:

The correct answer would be B

Explanation:

I took the test and we use wind and turbines to create a renewable energy source.

Answer: Option C.

Explanation:

As the speed of plane increases and it moves forward it allows to push air on the bottom of the wings of the plane which results in increasing the pressure

The fact of air pressure on top of planes wing decreases with the increase bin plane's speed is based on Bernoulli’s Principle which states that with the fast moving air, the pressure decreases.

Therefore,n when the plane moves up it's wing pushes air down and on the same time the air pressure decreases at the top of the wing, this difference between the high and low pressure allows the flight to lift up.

Hence, the correct option is C.

Answer:

1350 N

Explanation:

KE = ½mv²

KE = ½(12)(15²)

KE = 1350 N

If the tension is doubled, the new wave speed on a string under tension is approximately 325.27 m/s.

When the tension is doubled, the wave speed on a string under tension becomes twice its previous value. The wave speed on a string under tension is directly proportional to the square root of the tension. This is according to the wave equation.

Here is how to determine the new wave speed if the tension is doubled on a string under tension, given that the wave speed on the string is 230 m/s.

First, we can use the wave equation to determine the wave speed of a string under tension.

It is given as V = √(T/μ)

Where T is the tension, μ is the mass per unit length, and V is the wave speed.

If T doubles, then the new tension will be 2T and the new wave speed will be V1.

Thus,V1 = √((2T)/μ)

= √(2(T/μ))

= √2(√(T/μ))

= √2(V)

The new wave speed V1 is equal to √2 times the original wave speed V.

Thus, the new wave speed is;

V1 = √2(V)

= √2(230)

= 325.27 m/s

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The student should perform experiment 1: heat water and record its change in temperature with time.

To study the effect of adding thermal energy to a system, experiment 1 is the most suitable option.

By heating water and recording its change in temperature over time, the student can observe and analyze how the added thermal energy affects the system.

This will provide insight into the relationship between heat and temperature change.

Experiments 2, 3, and 4 are less relevant to the topic, as they involve freezing water (removing thermal energy) or closing circuits (which primarily relate to electrical energy rather than thermal energy).

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The circuit has a constant gain of 1 for high frequencies, implying that it acts as a low-pass filter. To find the frequency response function H(w) for the given circuit, we need to determine the transfer function H(w) = V0(w) / Vi(w), where V0(w) is the output voltage and Vi(w) is the input voltage in the frequency domain.

L = 1 H (inductance)

R = 3.9 KΩ (resistance)

The circuit can be represented by the following equation:

H(w) = (jwL + R) / (jwL + R + 1)

To sketch the magnitude of the frequency response function H(w), we need to plot the magnitude |H(w)| as a function of frequency w.

Taking the magnitude of the transfer function, we have:

|H(w)| = |(jwL + R) / (jwL + R + 1)|

Next, let's analyze the type of ideal filter approximated by this circuit. We can examine the transfer function to determine the filter characteristics.

From the transfer function:

H(w) = (jwL + R) / (jwL + R + 1)

As w approaches infinity, the jwL term dominates the transfer function, and the transfer function becomes:

H(w) ≈ jwL / jwL = 1

This indicates that the circuit has a constant gain of 1 for high frequencies, implying that it acts as a low-pass filter. It allows low-frequency signals to pass through relatively unattenuated while attenuating high-frequency signals.

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As the height of the hole increases, the velocity of the stream increases, results in a higher distance from the beaker. Therefore, the distance of the stream from the hole Y will be less than that from X thus, less than 5 cm is correct.

The speed of stream can be determined using the height and acceleration due to gravity g. We can use the equation for velocity using the parameters g and h.

v = √2gh

Therefore, as the height h increases, v increases.

Similarly the distance s = vt

therefore, the distance increases with v.

Here, the hole x is above the hole Y. Then the stream from X will have the greater speed and it covers greater distance (5 cm )from the beaker. Stream from Y slow compared to that in X hence covers a distance less than 5 cm. Hence, option 2 is correct.

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Answer:

B

Explanation:

Water is essential to most bodily functions.

Astronomers create three-dimensional maps of the universe by using the position on the sky and the redshift of galaxies to determine their distances along the line of sight. Therefore, the correct option is C) by using the position on the sky and the redshift to determine a distance along the line of sight.

The vastness of the universe makes it impossible for astronomers to directly observe the positions of all objects. Instead, they employ indirect methods to construct three-dimensional maps. One such method involves using the position on the sky and the redshift of galaxies. Astronomers measure the celestial coordinates (such as right ascension and declination) of galaxies, which gives their positions on the celestial sphere. Additionally, they analyze the redshift of light emitted by galaxies. Redshift refers to the stretching of light waves due to the expansion of the universe, and it provides valuable information about the distance to the galaxy.

By combining the positional data and redshift measurements, astronomers can estimate the distances along the line of sight to galaxies. This information allows them to create three-dimensional maps of the universe, illustrating the distribution and clustering of galaxies on a large scale. While computer simulations are useful for modeling the behavior and evolution of galaxies, they are not the primary method for constructing three-dimensional maps. Instead, the position on the sky and redshift data provide the necessary information to map the universe's structure and understand its large-scale properties.

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By switching to a higher power objective lens, the working distance is shrunk while the overall magnification increases.

What is working distance of a microscope?

Working distances for high-power oil immersion objectives can be as low as 0.1 mm and as high as 50 mm for dissecting or stereo microscope objectives. As magnification, resolution, and numerical aperture rise, it falls. Most microscope objectives are made with limited operating distances in mind.

By switching to a higher power objective lens, the working distance is shrunk while the overall magnification increases. On the other hand, lowering the total magnification while extending the working distance by adding a reduction objective.

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Answer:

1.2 m/s^2

Explanation:

average acceleration = vf-vi/t = (15 m/s-0 m/s)/10 s = 1.2 m/s^2