A 5-kg fish swimming at a speed of 1 m/s swallows an absent-minded 1-kg fish at rest. The speed of the larger fish after lunch is

The  time to drop from 1.3m and velocity after height at 0.7 mis mathematically given as

t1 = 0.515 sec  

v0 = 3.7m/s

Question Parameters:

A 0.045-kg golf ball is dropped from rest.

Is dropped from a height of 1.3m and comes back up at a height of .7m

Generally, the equation for the time to drop from 1.3m   is mathematically given as

yf - yi = vi t + a t^2/ 2

Therefore

0 - 1.3 = 0 - 9.8 t^2 /2

t1 = 0.515 sec  

Hence, after its max height is 0.7 m,

vf^2 - vi^2 = 2 a (yf - yi)

0^2 - (v0)^2 = 2(-9.8)(0.7 - 0)

v0 = 3.7m/s

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answer:

a. obesity, b. starvation, and d. hair-loss.

Three long-term effects of anorexia is A. Obesity B. Starvation D Hair loss, Hence option A B D is correct.

Obesity is a medical condition, often considered a disease, in which excess body fat has accumulated to the point that it is threatening health. Obesity is defined as having a body mass index (BMI) of more than 30 kg/m2 (a person's weight divided by the square of the person's height); overweight is defined as having a BMI of 25-30 kg/m2. Some East Asian countries calculate obesity using lower values. Obesity is a leading cause of disability and is linked to a variety of illnesses and ailments, including cardiovascular disease, type 2 diabetes, obstructive sleep apnea, some cancers, and osteoarthritis.

Individual, social, and environmental factors all contribute to obesity. Diet, physical activity, mechanization, urbanization, genetic vulnerability, drugs, mental problems, and economic policies are some of the recognized factors.  

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A fuse is a short and thin piece of wire of a uniform area of cross section.

Explanation:

A fuse is a safety device in an electric plug or circuit. It contains a piece of wire which melts when there is a fault so that the flow of electricity stops.

The fuse wire is made up of Sn (tin) and Pb (lead) alloy because of its high resistance and low melting.

First attachment shows fuse arrangement normally used in the houses and second attachment shows a cartridge type of fuse that is used mainly in costly appliances of our home like an air conditioner, geyser, etc.

Explanation:

Thorough inquiry and analysis of materials and sources to establish facts and reach new findings are known as resarch. False is the best answer from the choices provided

Thorough inquiry and analysis of materials and sources to establish facts and reach new findings.

It is false that researchers are required to evaluate and remark on the work of other researchers. It is not their responsibility - they do not have to do it,

But they may if they want to and if the author allows them to. However, they are not compelled to do so by law or anything else. They do it simply out of goodwill or genuine interest.

Hence False is the best answer from the choices provided.

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Answer: false

Explanation:

The distance the wave traveled between the two-point is the path difference. The path difference will be 2200 nm and 3 orders of bright lines do this equal red light with a wavelength of 650 nm.

A diffraction grating is a type of optical instrument obtained with a continuous pattern. The pattern of the diffracted light by a grating depends on the structure and number of elements present.

The equation of diffraction grating is given as

[tex]\rm n\lambda=dsin\phi\\\\\rm n\lambda=0.50\times10^{-3}\times sin(0.25) \\\\ n\rm \lambda=2.18\times10^{-6} \;m \\\\\rm n\lambda=2200\;nm[/tex]

Hence the path difference will be 2200 nm.

[tex]\rm n\lambda=2200\;nm \\\\\rm n\times650=2200 \\\\\rm n=3.38[/tex]

n= 3

Hence 3 orders of bright lines do this equal red light with a wavelength of 650 nm.

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Answer:

Q

Explanation: you don't need to convert °°C to K  Temperature  difference is   the same on both  scales

Answer:

Objects are pulled toward earth

Objects travel at a rate of 9.8m/s

Explanation:

these are the only one that I know. sry  :(

Answer: C) Increase the amplitude of the wavelenghth to increase the intensity.

Explanation:

The frequency of the light beam is 4.72 x 10¹⁴ Hz.

The frequency of light beam and wavelength of light is related in the following equations;

c = fλ

where;

f = c/λ

f = (3 x 10⁸) / (636 x 10⁻⁹)

f = 4.72 x 10¹⁴ Hz

Thus, the frequency of the light beam is 4.72 x 10¹⁴ Hz.

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Answer:

[tex] \huge \mathtt \gray{answer}[/tex]

Hope its help

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Answer: D

Explanation:

The total energy in the universe is constant. It cant be created or destroyed

Answer:

A

Explanation:

energy decays overtime

The direction the dots will appear to drift after they stop is upwards.

The upward motion of the dots appears to be continuous upward for first few seconds it stopped.

This is as a result of conditioning of the mind picturing the dots moving upwards. After few seconds the dots were, the eye perceives a continuous upward motion of the dots before it readjusts and notice that it has stopped.

Thus, the direction the dots will appear to drift after they stop is upwards.

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Answer:

  75.645 J

Explanation:

The kinetic energy is related to the mass and velocity by the formula ...

  KE = 1/2mv²

For the given mass of 0.045 kg, and velocity of 41 m/s, the kinetic energy is ...

  KE = 1/2(0.045 kg)(41 m/s)² = 75.645 J

__

The unit of energy, joule, is a derived unit equal to 1 kg·m²/s².

Answer:

The formula is: weight/mass = gravitational field strength.

Explanation:

Answer:

Electric charges are similar to magnetic poles because they both attract and repel without touching.

The factors that affect the flow of electric charge will be Voltage and resistance.

The flow of the charge depends upon the voltage because the voltage is responsible to push or it applies the force on the particles to flow.

For example, whenever your battery gets discharged what happens is the potential difference of voltage becomes zero.

So there will not be enough force remaining in the battery to flow the charge but when we charge the battery then it regains its voltage and again pushes the charges to flow.

Now the resistance acts just opposite to the voltage because it restricts the flow of the charges so if the resistance is more then more voltage is required to flow the charge.

Thus the factors that affect the flow of electric charge will be Voltage and resistance.

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Answer:

well sound waves interact with our ears and light interacts with our vision

Explanation:

Answer:

Hearing employs air or water waves, whereas sight uses the electromagnetic spectrum. The electrical and chemical neural impulses are sent through the human auditory nerve to the brain once the mechanical energy of the sound waveform is converted into neurological stimulation.

Answer:

Magnetic domains

The angular velocity depends on the length of the orbit and the orbital

speed of the telescope.

Response:

First question:

Second question:

Third question:

The distance of the James Webb telescope from the Sun = 1.5 million kilometers from Earth on the side facing away from the Sun

The orbital velocity of the telescope = The Earth's orbital velocity

First question:

[tex]Angular \ velocity = \mathbf{\dfrac{Angle \ turned}{Time \ taken}}[/tex]

The orbital velocity of the Earth = 29.8 km/s

The distance between the Earth and the Sun = 148.27 million km

The radius of the orbit of the telescope = 148.27 + 1.5 = 149.77

Radius of the orbit, r = 149.77 million kilometer from the Sun

The length of the orbit of the James Webb telescope = 2 × π × r

Which gives;

r = 2 × π × 149.77 million kilometers ≈ 941.03 million kilometers

Therefore;

[tex]Angular \ velocity = \dfrac{29.8}{941.03}\times 2 \times \pi \approx 0.199[/tex]

Second question:

Centrifugal force force, [tex]F_{\omega}[/tex] = m·ω²·r

Which gives;

[tex]F_{\omega} = m \cdot \dfrac{28,500^2 \, m^2/s^2}{149.77 \times 10^9 \, m} \approx 0.0054233 \cdot m[/tex]

[tex]Gravitational \ force, F_G = \mathbf{G \cdot \dfrac{m_{1} \cdot m_{2}}{r^{2}}}[/tex]

Universal gravitational constant, G = 6.67408 × 10⁻¹¹ m³·kg⁻¹·s⁻²

Mass of the Sun = 1.989 × 10³⁰ kg

Which gives;

[tex]F_G = 6.67408 \times 10^{-11} \times \dfrac{1.989 \times 10^{30} \times m}{149.77 \times 10^9} \approx 0.00592 \cdot m[/tex]

Which gives;

[tex]F_{\omega}[/tex] < [tex]F_G[/tex], therefore, the James Webb telescope has to accelerate away from the Sun

F = [tex]\mathbf{F_{\omega}}[/tex] - [tex]\mathbf{F_G}[/tex]

The amount by which the telescope accelerates away is approximately 0.00592·m - 0.0054233·m ≈ 0.0005·m (away from the Sun)

Third part:

Other forces include;

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Answer:

710 newtons

Explanation:

KE=1/2*m*v^2

1/2*.142*100^2

1/2*.142*10000

1/2*1420

710

Answer:

HELLO! I WILL EXPLAIN WHY GOLF BALLS HAVE DIMPLES.

Explanation:

DIMPLES ON A GOLF BALL CREATE A THIN BOUNDARY LAYER OF AIR THAT CLINGS TO THE BALL'S SURFACE. THIS ALLOWS THE AIR TO FOLLOW THE BALL'S SURFACE A LITTLE FARTHER AROUND THE BACKSIDE OF THE BALL, THEREBY DECREASING THE SIZE OF THE WAKE.

I AM SO SORRY ABOUT THE CAP LOCKS I THINK MY CAP LOCKS BUTTON IS PUSHED, AND IT IS NOT POPPING UP FOR SOME REASON.

ANYWAYS, HAVE A GREAT DAY!!!!!!

Answer:

i think .A

Cari on learning

Answer:

26

Explanation:

meters per second has a wavelength of 26.

vf=vi+at

14=6+a.6

a=1.33 m/s²

∑F = m.a

∑F =58 x 1.33

∑F = 77.14 /n

Answer:

the hot air balloon

Explanation:

Warmer air is less dense than cooler air, so it rises faster compared to a cooler hot air ballon.

The balloon filled with hot air will rise higher because of its lesser density.

Density of an object is defined as the mass per unit volume of the object. It is considered as the measure of amount of substance in a give space.

Here,

Two hot-air balloons are filled at the same time. Among them, one is filled with warm air and the other one is filled with hot air.

When the balloons are released to go up, the balloon filled with hot air will rise higher. This is because of the difference in their density.

When the hot air is filled, its temperature is increased. Therefore the volume also increases which will result in the decreased density of the hot air balloon.

The balloon filled with hot air will be less denser when compared to the other. The buoyancy of the balloons is affected by their densities.

The hot air in the balloon is less denser than the cool air. So, the buoyancy of the hot air balloon will be more than that with warm air. As a result, the balloon filled with hot air will rise higher in the air.

Hence,

The balloon filled with hot air will rise higher because of its lesser density.

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