A ball rolls 10.0 m [S] ina time of 60.0s, it hits a wall, and rolls back a distance of 15.0 m [N] in a time of 10.00s. Determine: ( /4)
The distance travelled by the ball.



The displacement of the ball.



The average speed of the ball.



The average velocity of the ball.

Answer:

The fundamental frequency is "190.52 Hz".

Explanation:

The given question is incomplete, please find attachment of the complete problem.

The given values are:

Frequency,

f = 146.8 Hz

Length of D-string,

L = 0.61

As we know,

⇒ \(f = \frac{v}{2L}\)

On putting the given values, we get

⇒ \(146.8 = \frac{v}{(2\times 0.61)}\)

⇒       \(v=146.8\times 1.22\)

⇒       \(v=179 \ m/s\)

So,

The new length will be:

⇒  \(f = \frac{179}{(2\times 0.47)}\)

⇒     \(=\frac{179}{0.94}\)

⇒     \(=190.52 \ Hz\)

The fundamental frequency, in hertz, of the new tone that is produced when the string is plucked is 168.84 Hz

Let assume that the oscillating length on the guitar is 0.62 m,

If the guitarist shortens the oscillating length of the properly tuned D-string by 0.15 m.

Then the new length of the oscillating string L' = (0.62 - 0.15 )m = 0.47 m

The fundamental frequency of the new tone can be computed by using the formula:

\(\mathbf{f = \dfrac{1}{2L'} \sqrt{\dfrac{T}{m/L}}}\)

where;

T  = 4× 0.62× 147 × 1.5× 10⁻³  (assuming old fundamental frequency = 147)

T  = 4× 0.62× 147 × 1.5× 10⁻³

T = 80.39 N

∴

\(\mathbf{f = \dfrac{1}{2 \times 0.47} \sqrt{\dfrac{80.39}{1.5 \times 10^{-3}/0.47}}}\)

f = 168.84 Hz

Therefore, the fundamental frequency, in hertz, of the new tone that is produced when the string is plucked is 168.84 Hz

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Answer:

Is a)

Explanation: i took the test so dw

Answer:

no the answer

Explanation: is D i know i took the test

The wavelength, photoperiod, and intensity of solar radiation all have significant impacts on the environment and living organisms, affecting various biological processes, behaviors, and ecological patterns.

The wavelength, photoperiod, and intensity of solar radiation that falls in a given area in a unit of time will influence various factors.

Firstly, the wavelength of solar radiation determines the color and energy of the light. Different wavelengths have different effects on the environment and living organisms. For example, shorter wavelengths such as ultraviolet (UV) radiation can cause sunburns and damage DNA, while longer wavelengths such as infrared (IR) radiation produce heat.

Secondly, the photoperiod, which refers to the duration of daylight in a day, affects the growth and development of plants, animals, and other organisms. Photoperiod influences processes like flowering, migration, and hibernation. Changes in photoperiod can trigger specific biological responses in organisms, regulating their life cycles and behaviors.

Lastly, the intensity of solar radiation refers to the amount of energy received per unit area in a given time. Higher intensity levels provide more energy, which can affect photosynthesis, temperature regulation, and metabolic activities. Intensity variations also influence the distribution and abundance of species in an ecosystem, as organisms adapt to different energy levels.

In conclusion, the wavelength, photoperiod, and intensity of solar radiation all have significant impacts on the environment and living organisms, affecting various biological processes, behaviors, and ecological patterns.

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Answer:

2

Explanation:

To find force it's force = mass times acceleration so to find mass you would divide force by acceleration

Answer:

330 meters per second

Explanation:

Δx = vt

660 = 2v

Divide both sides by 2 to get 330 = v

The work done by a stock boy in 15 minutes to lift 60 boxes is 4.5kJ and the power to do this work is 300 W.

Work done in lifting the boxes = mgh

m =mass of the box

g = acceleration due to gravity

h = height

From the given,

m = 5 kg

g = 10m/s²

h = 1.5 m

Workdone = m×g×h

                  = 5×10×1.5

                  = 75 J

The work done by the boy to lift 4 boxes in a minute is 75 joule.

In 15 minutes, the boy can lift the box = 4×15 = 60 boxes

The work done to lift 60 boxes = 60 × 75 = 4500 J

Hence, the work done in lifing the 60 boxes in 15 minutes is 4.5 kJ.

Power is obtained by the ratio of workdone and time and the unit of power is watt (W)

Power = workdone/time

          = 4500 / 15

          = 300 W

The power for this job is 300 W.

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People may experience:

Headache: can be acute or persistent

Whole body: blackout, fatigue, or poor balance

Cognitive: amnesia, disorientation, or mental confusion

Sleep: sleep disturbances or sleepiness

Gastrointestinal: nausea or vomiting

Also common: irritability, mild depression, ringing in the ears, or sensitivity to light

Hopes this helps, please follow me. Thanks

Answer:

headache, dizziness, disorientation, and nausea.

Explanation:

A concussion is any sudden impact to the head or acceleration or deceleration without impact. A concussion disrupts normal brain activity and can be dangerous. The symptoms include headache, dizziness, disorientation, and nausea.

Answer:

8.45m/s = recoil speed

Explanation:

Momentum = mass • velocity

9.8kg • 88.03m/s = 102.1kg • recoil speed

862.694kg•m/s = 102.1kg • recoil speed

divide both sides by 102.1kg

8.45m/s = recoil speed

Answer:

C. sedimentary

Explanation:

Answer:

Sedimentary

Explanation:

Igneous rock- A rock that's formed through the cooling and solidification of magma or lava.

Metamorphic rock- A rock that starts out as another rock and often has a striped appearance.

Volcanic rock- A rock that's formed from lava that erupted from a volcano.

Sedimentary is the only right answer. A Sedimentary rock is a rock thats made from the deposition of lots of pieces of eroded rock particles.

Based on the observation that the air over the land is much warmer than the air over the water during the day, the students most likely observed the wind blowing from the water towards the land.

The movement of air from the water to the land is known as a sea breeze. During the day, the land heats up more quickly than the water due to differences in their heat capacities. As a result, the air over the land becomes warmer and rises, creating a lower pressure area. The cooler air over the water, which has higher pressure, then moves towards the land to replace the rising warm air, resulting in a wind blowing from the water to the land. Therefore, the wind is most likely blowing from the east to the west in this scenario.

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The acceleration of the quarterback and the lineman is 5.55m/s² and 4.16m/s² respectively in the same direction.

As, we know, the 120 Kg lineman is moving with a force of 500N.

His net acceleration will be in the same direction as his motion.

It is already known that, If M is the mass of the body and a is the acceleration of the body, then the force F on the body can be calculated by using the formula,

F = Ma.

The weight of the quarterback is 90 Kg. He is being hit by a force of 500N.

So, the acceleration can be calculated using the formula,

500N = 90kg x a

a = 5.55 m/s².

Now, the weight if the lineman is 120kg, the force applied by him is 500N.

So, from the formula, his acceleration A will be,

500N = 120Kg x A

A = 4.16 m/s².

both of them will have acceleration in the same direction,

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Answer:

A trees food and air source would be deprived because of this. Trees need leaves to perform photosynthesis, so besides their roots soaking up water and nutrients, they wouldn't have any other form of food until those leaves grow back. If they don't and the locusts continue to eat up the tree, it will eventually starve and die.

Explanation:

Imagine the trees trunk and roots as your body and the leaves as your mouth/food source. God Forbid you catch a cold or some sickness. You probably won't have the appetite to eat. Despite that, you'll still have to. But, if you get so sick to the point that eating just makes you throw it up before your body can take in the nutrients and beneficial stuff, you will eventually get to the point where eating is nearly impossible. This will lead up to the sickness taking over your body, as there's no energy going in to help it fight it off, and you would die.

(Gah, sorry for the dark theme... didn't think it would turn like that lol)

Anyways, hope this helped!

Source(s) used: N/A

Answer:

632.8 nm is the wavelength (in air) of red light from a helium neon laser.

The average force of air friction that acted on the stone as it fell is 8.72 N.

The resistance experienced by an object when passing through the air is known as air friction. The force of air resistance is proportional to the speed of the object moving through the air. The faster an object travels, the greater the resistance it experiences. It can be computed using the following formula:

F = 1/2pv²CdA,

Where F is the force of air resistance, p is the density of the air, v is the velocity of the object, Cd is the drag coefficient, and A is the surface area of the object.
The formula for gravitational potential energy is:
PE = mgh
where m is the mass of the object, g is the acceleration due to gravity (9.8 m/s²), h is the height the object was dropped from
Let us determine the velocity of the object upon impact. The formula for finding the velocity of an object that falls from a height is:
v² = u² + 2gh
where v is the final velocity, u is the initial velocity (which is zero in this case), g is the acceleration due to gravity (9.8 m/s²), h is the height the object was dropped from
Substitute the values into the formula:
v² = 0 + 2(9.8)(10)
v² = 196
v = √196
v = 14 m/s
Therefore, the final velocity of the object is 14 m/s.
Let us now calculate the force of air resistance using the formula:
F = 1/2pv²CdA
where F is the force of air resistance, p is the density of the air (1.2 kg/m³ at sea level), v is the velocity of the object (14 m/s), Cd is the drag coefficient (for a sphere it is 0.47), A is the surface area of the object (for a sphere it is πr²)
Substitute the values into the formula:
F = 1/2 × 1.2 × 14² × 0.47 × π(0.5²)
F = 8.72 N
Therefore, the average force of air friction that acted on the stone as it fell is 8.72 N.

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Answer: The charge that flows through the wire in 60 s is 14.87 C.

Explanation: The charge that flows through the wire in 60 s can be calculated using the formula:

Charge = Current x Time

The current can be calculated using Ohm’s law:

Current = Voltage / Resistance

Substituting the given values:

Current = 3.00 V / 12.1 Ohms = 0.2479 A

Charge = 0.2479 A x 60 s = 14.87 C

Hope this helps, and have a great day! =)

The force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface.

Answer:

I am pretty sure it is A!

:D

The air is warmer near Earth's surface because warm air is denser and sits on top of the Earth's surface. The correct option is B.

The mass of the air per unit volume is known as the air density. Its unit is kg/m³.

Due to the lower pressures in the air above, air expands when it rises. cooling air expands.

The hottest temperatures in the troposphere are often found at the earth's surface because the sun heats the atmosphere predominantly from the surface and because the air cools as it ascends.

Because warm air is denser and lies on top of the surface of the Earth, it is warmer near the surface of the earth.

Hence, the correct option is B.

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From around 6500 K at the bottom to 4000 K at the top, the photosphere's temperature changes (11,000 and 6700 degrees F, 6200 and 3700 degrees C). Granulation covers a large portion of the photosphere.

The results of these many techniques indicate that the Sun's surface actually has a temperature of about 5,800 kelvin (9,980 degrees Fahrenheit [5,520 degrees Celsius]). The photosphere contains areas of darkness known as sunspots, where the temperature is comparatively lower—about 3800K. The photosphere is therefore the layer that is the coldest. It is 15 million K inside the sun (27 million degrees Fahrenheit). It is 5780 K at the surface (9900 degrees Fahrenheit).

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Answer:

Explanation:

If the hippo is laying on the rock, I'm assuming that there is no movement going on at all, in either the hippo or the rock. If no movement occurs, there is no work being done.

Answer:

Length - meter (m)

Time - second (s)

Amount of substance - mole (mole)

Electric current - ampere (A)

Temperature - kelvin (K)

Luminous intensity - candela (cd)

Mass - kilogram (kg)

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The energy stored in a 2.60-cm-diameter, 14.0-cm-long solenoid that has 150 turns of wire and carries a current of 0.780 a is 0.016 joules.

The energy stored in a solenoid is given by the equation:

U = (1/2) * L * I²

where U is the energy stored, L is the inductance of the solenoid, and I is the current flowing through it.

The inductance of a solenoid can be calculated using the equation:

L = (μ * N² * A) / l

where μ is the permeability of the medium (in vacuum μ = 4π × 10⁻⁷ H/m), N is the number of turns of wire, A is the cross-sectional area of the solenoid, and l is the length of the solenoid.

First, let's calculate the inductance of the solenoid:

μ = 4π × 10⁻⁷ H/m

N = 150

A = πr² = π(0.013 m)² = 0.000530 m²

l = 0.14 m

L = (4π × 10⁻⁷ H/m * 150² * 0.000530 m²) / 0.14 m = 0.051 H

Now, we can calculate the energy stored in the solenoid:

I = 0.780 A

U = (1/2) * L * I^2 = (1/2) * 0.051 H * (0.780 A)² = 0.016 J

Therefore, the energy stored in the solenoid is 0.016 joules.

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Explanation:

Now,

By the third equation of motion, we have

These experiments have shown that the building blocks of life form easily and naturally under conditions that existed on early Earth.

Who proposed the idea of the nebular hypothesis?

The generally accepted model for the formation of the solar system is called the nebular hypothesis. It takes all the different kinds of information and merges them into one hypothesis that seems to match all the observations. The theory was proposed by French mathematician Pierre Simon Laplace more than 200 years ago.

What is astrobiology and what type of research does it involve?

Astrobiology is the study of life within the universe. Astrobiologists study how life forms and develops, and where life can be found. Astrobiology involves the search for life outside Earth, the study of planets and moons within our Solar System, and the search for habitable planets around other stars.

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At constant temperature and pressure, ΔSuniv and ΔGsys are related through the Gibbs free energy equation, with positive ΔSuniv indicating a spontaneous process and negative ΔSuniv indicating a non-spontaneous process.

The relationship between âsuniv and âgsys at constant temperature and pressure can be explained through the second law of thermodynamics. âsuniv represents the total change in entropy of a system and its surroundings, while âgsys represents the change in entropy of the system alone. Therefore, the relationship between âsuniv and âgsys can be expressed as âsuniv = âgsys + âssurr, where âssurr represents the change in entropy of the surroundings.

The change in the total entropy of the universe (âsuniv) is equal to the change in entropy of the system (âgsys) plus the change in entropy of the surroundings (âssurr). This relationship highlights the importance of considering not only the system being studied, but also its interaction with the surrounding environment.  At constant temperature and pressure, the relationship between âsuniv and âgsys can be described as âsuniv = âgsys + âssurr, emphasizing the significance of the second law of thermodynamics in understanding the behavior of thermodynamic systems. This relationship can be further explored and applied in various fields such as chemistry, physics, and engineering.

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Answer:

f = 459.8 Hz

Explanation:

When a trumpet is playing it is an open tube at both ends, therefore there is a belly in each one, the resonance occurs to

           λ = 2L             1st harmonic

           λ = 2L /2        2nd harmonic

           λ = 2L /3       3rd harmonic

the speed of the wave is

           v = λ f

           λ = v / f

we substitute in the third harmonic

            \(\frac{v}{f} = \frac{2L}{3}\)            (1)

            L = \(\frac{3}{2} \ \frac{v}{f}\)

            L = \(\frac{3}{2} \ \frac{343}{ 510}\)

            L = 1.009 m

indicates that to  add ΔL = 0.110 m, so the total length is

            L_total = L + ΔL

            L _total = 1.009 + 0.110

            L _total = 1,119 m

we use equation 1

            f =  \(\frac{3}{2} \ \frac{v}{L_{total}}\)

            f = \(\frac{3}{2} \ \frac{343}{1.119}\)

            f = 459.8 Hz

Answer:

probaby not

Explanation:

you might get thrown in jail tho

Answer:

a

Explanation:

are found in the nucleus and are locked in

Answer:

A

Explanation:

Thats what I think the answer is because protons and neutrons bond together in the nucleus.

Answer:

A pair of scales

Explanation:

Answer:

London Dispersion forces are a part of wan-der-vals forces. The instantaneous dipole–induced dipole attractions are called London dispersion forces.

London’s dispersion force < dipole-dipole < H-bonding < Ion-ion

London dispersion forces are the weakest intermolecular force.

The unequal distribution of electrons about the nucleus in an atom induces a dipole in the atom. When another atom or molecule comes in contact with this induced dipole, it can be distorted and leads to an electrostatic attraction between atoms or molecules.

C) A small amount of mass can be turned into a large amount of energy. This is the principle behind nuclear reactions and the development of nuclear energy.

E=mc2 is Einstein's equation that connects energy (E) to mass (m) and light speed (c). According to this definition, energy is determined by multiplying an object's mass by its square of the speed of light. This formula emphasises the relationship between mass and energy.

The equation demonstrates how a little bit of mass may yield a lot of energy. The figure "c," which stands for the speed of light, is enormous—it is roughly 3 x 108 metres per second. This value gains considerably more significance when squared.

Because the speed of light is such a huge number, it produces a massive quantity of energy when multiplied by the mass of an object, even a modest amount of mass. This phenomenon is seen in nuclear reactions, where a sizable amount of energy is released but only a small portion of the mass of the atomic nuclei is changed. This idea underlies the operation of nuclear power plants and nuclear weapons.

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