Children become increasingly finicky about food ___ years of age

The examples of elements with similar properties in the same group are fluorine, chlorine, bromine and iodine.

The groups in periodic table is the same as vertical columns in the periodic table

These groups represent a group or family of elements that have the same number of valence electrons by having similar electron configurations elements in the same group have similar properties.

Examples of elements found in the same group with similar chemical properties include;

group 7 elements.

The valence electron of elements found in the group 7 of periodic table is negative 1 (-1).

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Answer:

The third structure is a bent geometry of a molecule as it consists of one atom of B(boron)and 3 atoms of Cl(chlorine) linked to the atom of and the bond angle is 120°

Answer:

The first one.

Explanation:

The voltage across the capacitor is VC=qC since the formula for capacitance is C=q/V. Ohm's law states that the current is defined as I=dq/dt and the potential drop across the resistor is VR=IR.

What happens when a capacitor and a resistor are connected in series?

A series connection between a resistor and a capacitor creates an RC circuit, which charges the capacitor progressively through the resistor until the voltage across it equals the supply voltage. The time needed to fully charge the capacitor is about equal to 5 time constants, or 5T.

How can a capacitor with a resistor issue be fixed?

Simply use V=IR, where V is the battery voltage and R is the resistor resistance, to determine the current flowing through the circuit, and then solve for I. When the capacitor is finished charging, the current has progressively decreased and is getting close to zero.

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Answer:

0.1667 meters/second.

Explanation:

To find Jibari's average velocity for the trip, we need to first calculate his average velocity for each leg of the trip. To do this, we need to divide the distance he traveled by the time it took him to travel that distance.

For the first leg of the trip, Jibari walked 40.0 meters east in 120.0 seconds. His average velocity for this leg of the trip is therefore 40.0 meters / 120.0 seconds = 0.3333 meters/second east.

For the second leg of the trip, Jibari walked 30.0 meters west in 60.0 seconds. His average velocity for this leg of the trip is therefore 30.0 meters / 60.0 seconds = 0.5000 meters/second west.

To find Jibari's average velocity for the entire trip, we need to add the velocities for each leg of the trip, taking into account their direction. Since the first leg of the trip was east and the second leg was west, we can simply add the two velocities together to find the overall average velocity.

Jibari's overall average velocity for the trip is therefore 0.3333 meters/second east + 0.5000 meters/second west = 0.1667 meters/second.

Therefore, Jibari's average velocity for the trip was 0.1667 meters/second.

Jibari's average velocity for the trip is 0.7 m/s east.

To solve for Jibari's average velocity, we will first need to find his total displacement. We can do this by adding the magnitudes of his eastward and westward displacements. The magnitude of Jibari's eastward displacement is 40.0 meters, and the magnitude of his westward displacement is 30.0 meters. So, his total displacement is

40.0 - 30.0 = 10.0 meters east.

We can then find Jibari's average velocity by dividing his total displacement by the total time it took him to complete the trip. The total time it took Jibari to complete the trip is

120.0 + 60.0 = 180.0 seconds.

So, his average velocity is

10.0 / 180.0 = 0.7 m/s east.

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Answer: EASY BROOOOOOOOOOOOOOOOOOOOOOOOO

Take a look inside your heart

Is there any room for me?

I would have to hold my breath

'Til you get down on one knee

Because you only want to hold me

When I'm looking good enough

Did you ever fault me?

Would you ever picture us?

Every time I pull my hair out

Was only out of fear

That'd you find me ugly

And one day you'll disappear

Because what's the point of crying?

It was never even love

Did you ever want me?

Was I ever good enough?

If I were a passenger in a convertible car traveling at a constant velocity and threw a ball straight up into the air, neglecting air resistance, the ball would follow a parabolic path and would eventually fall back into the car.

When the ball is thrown straight up, it will initially have a vertical velocity of 0 at the top of its trajectory. This means that it will begin to fall back down at the same speed that it was thrown up, due to the force of gravity. Since the car is moving at a constant velocity, the ball will appear to fall back into the car from the perspective of someone inside the car. However, from an outside perspective, the ball will be seen to fall to the ground at a point ahead of the car.

It's important to note that this scenario is based on the assumption that there is no air resistance. In the real world, air resistance would cause the ball to slow down as it moves through the air, which would affect the trajectory of the ball and would likely cause it to fall outside of the car.

You must concentrate on the catch to win a water balloon contest without breaking the balloon. Momentum, impulse, force, and impact time are all important factors in the catch's success. The key to catching a water balloon without breaking it is to reduce the balloon's impact force. The momentum of the balloon, the impulse applied to the balloon, and the impact time all contribute to the impact force.

The product of an object's mass and velocity is its momentum. As it is thrown towards you, the water balloon has a certain mass and velocity. The greater the balloon's momentum, the more difficult it will be to catch it without breaking it.

In order to catch a water balloon, you must apply an impulse to the balloon. The higher the impulse, the more effectively you can stop the balloon. To catch a water balloon without breaking it, apply a large impulse to the balloon in a short period of time. This reduces the impact force on the balloon and keeps it from breaking.

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Energy and angluar momentum quantity is conserved for plant orbiting a star in a circular orbit.

Energy is ability to do the work.scientist defines energy as the ability to do work.

Energy and angular momentum, arter all other factors- change.

In the Earth-Satellite system, a gravitational force acts to the  join the two bodies. Thus, there is no torque due by  to gravitational force. Hence, the angular velocity is conserved.

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The magnitude of the frictional force the road applied to the car in stopping it is 8,232 N.

The acceleration of the car is the rate of change of velocity of the car with time.

The acceleration of the car is determined by applying Newton's second law of motion as follows;

ma = μmg

a = μg

where;

the coefficient of static friction between the car and the asphalt road  = 0.7

a = 0.7 x 9.8 m/s²

a = 6.86 m/s²

The magnitude of the frictional force the road applied to the car in stopping it is calculated as follows;

Ff = ma

where;

Ff = 1200 kg x 6.86 m/s²

Ff = 8,232 N

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Saturn's atmosphere is substantially less active than Jupiter's because it is twice as far away from the sun.

how many moons are there for saturn ?

Saturn's moons are many and diverse, ranging from small moonlets barely tens of metres wide to Titan, which is bigger than Mercury. Saturn has 83 verified moons with proven orbits that are not contained in its rings, with just 13 having diameters more than 50 kilometres, as well as thick rings with millions of embedded moonlets and uncountable smaller ring particles. Only one or two of Saturn's moons, Titan and maybe Rhea, are massive enough to have collapsed into a relaxed, ellipsoidal form. Titan, the second-largest moon in the Solar System (after Jupiter's Ganymede), has a nitrogen-rich Earth-like atmosphere and a terrain that includes dry river networks.

Smaller moons "shepherd" or retain particles in their rings in the ring system.

Saturn's atmosphere is substantially less active than Jupiter's because it is twice as far away from the sun.

Saturn's rings are largely comprised of ice particles.

Saturn is not the only planet with a ring system, despite being the most extensive.

Some ring particles are miniature moons separated by tidal forces.

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With the use of formula, the magnitude of the gravitational field strength is 8.83 m/s²

Gravitational Field Strength at any point in a gravitational field is defined as  the gravitational force per unit mass on any object placed at that point.

To calculate  the value of g, the gravitational field strength, at the surface of the planet Venus, we will use the formula below

g = GM/r²

Where

Substitute all the parameters written above into the formula

g = ( 6.67 × [tex]10^{-11}[/tex] × 4.88 × [tex]10^{24}[/tex]) / (6.073 × [tex]10^{6}[/tex])²

g = 3.255 × [tex]10^{14}[/tex] / 3.688 × [tex]10^{13}[/tex]

g = 8.83 m/s²

Therefore, the value of g, the gravitational field strength, at the surface of the planet Venus is 8.83 m/s²

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During a summer midday, warping strains are produced in reinforced cement concrete pavements that are tensile in the bottom fibre and compressive in the top fibre.

There is a temperature difference between the top and bottom layers

the pavement when it is nighttime because the top surface is colder than the bottom surface. which results in the pavement warping.

Internal tensile tensions form at the top as the top slab attempts to contract but is unable to do so.

bottom-up compression stress

There is a temperature difference between the top and bottom layers of the pavement when it is nighttime because the top surface is colder than the bottom surface. This results in pavement warping

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Amid a summer late morning, warping strains are delivered in strengthened cement concrete asphalts that are ductile within the bottom fibre and compressive within the best fibre.

There may be a temperature contrast between the best and foot layers the asphalt when it is nighttime since the beat surface is colder than the foot surface. which comes about within the asphalt warping. Internal pliable pressures form at the best as the best piece endeavors to contract but is incapable to do so.

bottom-up compression stress There could be a temperature distinction between the beat and foot layers of the asphalt when it is night time since the best surface is colder than the foot surface. This comes about in asphalt distorting

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According to the given information amount of water supply required for fire extinguishment Fire flow.

According to the idea of fire extinguishment, the fire can be put out by removing one or several of the four components of the fire tetrahedron. ELIMINATING THE HEAT Something has to be applied toward the fire that absorb the temperature or serve as a heat exchanger in order to evacuate the heat.

Basic operating principles for fire extinguishers: -Smouldering: This includes either removing oxygen or reducing its presence. - Cooling: This procedure involves removing heat or lowering heat. -Starvation: This entails removing fuel from the fire's site.

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Answer:

Hope this helps!

Explanation:

The time elapsed before the cannon ball strikes the ground can be found by using the equation for kinematic vertical motion,

t = (2*d)/g

Where d is the vertical distance and g is the acceleration due to gravity (9.8 m/s^2).

t = (2*61)/9.8

t = 12.24 seconds

The time elapsed is 12.24 seconds, rounded to the nearest hundredth is 12.24 seconds.

The net force acting on the future space vehicle be 81750 Newton.

The definition of force in physics is: The push or pull on a mass-containing item changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

Given parameters:

Mass of the  future space vehicle: m =  250,00 kilograms.

Net acceleration of the   future space vehicle: a = 3.27 m/s^2.

Hence, according to Newton's 2nd law of motion:

Net force acting on the future space vehicle: F = mass × acceleration

= 25000 × 3.27 Newton

= 81750 Newton.

Hence, net force acting on the future space vehicle be 81750 Newton.

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a) Image distance of truck v = -1.49m/s

b)  magnification for this object distance m = +0.643

Image distance and focal length of a convex mirror is negative.

a) Calculating the image distance using the mirror formula;

[tex]\frac{1}{f} = \frac{1}{u} + \frac{1}{v}[/tex]

f = the mirror's focal length, which is 5.90 meters,

u = the object's distance from the mirror, which is 2.00 meters, and

v = the image's distance from the mirror.

[tex]\frac{1}{-5.90}[/tex] = [tex]\frac{1}{2}[/tex] + [tex]\frac{1}{v}[/tex]

[tex]\frac{1}{v}[/tex] = [tex]\frac{1} {-5.9}[/tex] - [tex]\frac{1}{2}[/tex]

[tex]\frac{1}{v}[/tex] = - 0.169 -0.5

  = -0.669

v = [tex]\frac{1}{-0.669}[/tex]

v = - 1.49m/s

What are convex mirrors used for?

All automobiles have convex mirrors in their rearview mirrors. They provide a wider vision than flat mirrors. To span the breadth visible via a convex mirror of a considerably smaller size, we will require enormous plane mirrors. Additionally, convex mirrors are utilized for security in storefronts, corridors of buildings, etc.

b) Magnification is equal to the image/object distance.

Magnification is 1.49/2.

magnifying glass = +0.74

Note that we do not compute the object's magnification using the image distance's negative value.

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The listener must be 0.67 meters away from the speaker in in order to hear that speaker's voice.

to shout or make a loud sound, typically out of anger, discomfort, or excitement: This morning, our neighbors were shouting (using expletives) at one another. The youngster screamed in agony.

difference in sound level is-

Δβ=βf −βt =(10dB)log( If/It)

Thus, if Δβ=5.0 db, then log(I f /I t )=1/2, which implies that It = √10 It.

The intensity, however, is lower at a separation r from of the source because

I= P/4πr²

where P represents the source's power.

A fixed P implies that Itrt²=Ifrf². Thus, with

rt =1.2 m, we obtain

rt =( If/It ) ∧1/2 rt

​=(1/10) ∧1/4 (1.2 m)

=0.67 m.

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The complete question is -

Party hearing. As the number of people at a party increases, you must raise your voice for a listener to hear you against the backgrounds noise of the other partygoers. However, once you reach the level of yelling, the only way you can be heard is if you move closer to your listener, into the listener's "personal space". Model the situation by replacing you with an isotropic point source of fixed power P and replacing your listener with a point that absorbs part of your sound waves. These points are initially separated by r1 =1.20 m. If the background noise increases by Δβ=5 dB, the sound level at your listener must also increase. What separation rf is then required?

The frequency of a sound wave with a 1-meter wavelength propagating through air at 75° F be 345 Hz.

In physics, frequency is the number of waves that pass a fixed point in a unit of time as well as the number of cycles or vibrations that a body in periodic motion experiences in a unit of time.

After moving through a sequence of situations or locations and then returning to its initial position, a body in periodic motion is said to have experienced one cycle or one vibration.

At 75° F velocity of sound in air be = 345 m/s.

Given that, wavelength of sound be = 1 meter.

Hence, frequency of sound be = velocity/wavelength

= 345 m/s / 1 m

= 345 s⁻¹

= 345 Hz.

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This value is close to the experimental value of approx. 1011 A/m2

Super conductivity, or current flow with zero electric resistance, is the ability to conduct electricity without suffering energy losses.

The superconductivity is quenched when current through the wire causes the critical magnetic field at the wire surface.

Given that,

B = 0.2T

R = 0.001m (R = r/2)

a. Maximum current, critical current density

Ic = B*2πr / μo

Ic = {0.2 * 2 * (22/7) * (0.001/2)} / 4 * (22/7) * 10-7

Ic = 500A

Thus, maximum current Jc=Ic/A = 6.363 * 108 A/m2

It turns out that the critical current density for TYPE I superconductors is indeed in the range of this magnitude. The superconductivity is destroyed by a current that produces a field on the conductor surface that is equivalent to B.

b. Type II superconductor, Nb3Sn

Critical field is the upper critical field, B2

Ic = B*2πr / μo

Given that, B = 24.5T,   Thickness = 0.001m

 Ic = {24.5 * 2 * π * (0.001/2)} / 4 * π *10-7

 Ic = 61250A

Thus, Maximum Current Jc= Ic/A = 7.795 * 1010 A/m2

This value is close to the experimental value of approx. 1011 A/m2

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Although the exact location of the liquid/gas transition is not known, Jupiter is likely totally liquid a few thousand kilometers below the planet's cloud tops. Therefore, even if we removed all of the gases from Jupiter, it would still be larger than Saturn.

From Earth, how huge would Jupiter appear?

Io and Ganymede would frequently emerge in the sky and would appear to be more than 1.5 times larger than our Moon does in the sky above Earth. In the sky above Earth, Jupiter would appear to be almost 24 times larger than our Moon.

Is Jupiter an ailing star?

The same elements as the Sun (hydrogen and helium), Jupiter is referred to as a failed star because it lacks the mass required to have the internal pressure and temperature required to cause hydrogen to fuse to helium, the energy source that powers the sun and most other stars.

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Weight of a body is defined as the force with which it is attached to the earth.

mass is the total quantity of matter present.

the weight of something is given as mass * acceleration

weight of an object is directly proportional to the mass of the object.  so, if mass doubles, weight will also double.

hope this helps :)

- jeron

(a) The height above point A will be the tray when the metal ball leaves the tray is 29.24 cm.

(b) The total time elapses between releasing the system at point A and the ball leaving the tray is 0.09 seconds.

(c) The speed of the ball moving just as it leaves the tray is 1.16 m/s.

A) F= gx

ma=gx

(2.295)(9.8)=190x

X= 11.84 cm

B) h= 11.84+17.4 = 29.24 cm

Y=Acos√kt/m-0

T= 0.09s

C) ½ mv² + ½ ky² = ½ kA²

v² = 1.16m/s

What is speed?

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Answer:

• Gravitational potential energy is always negative while the elastic potential energy is always positive.

• Gravitational potential energy depends on the mass of the object, but elastic potential energy does not depend on the mass.

The correct answer choice which is correct about the description of a neutral posture from above is: A boy sitting on an examination chair whose knees are at the same height.

The correct answer choice is option a.

Neutral posture can simply be defined as that position which an individual is that he or she finds comfort in and that can be in that position for a prolonged time. However, the part of the mammalian brain which controls our body postures is known as what we call the cerebellum.

From the context of the task, the body is sitting on a chair with his two knees at the same height is a neutral posture because he will be eased and comfortable to be in this position for a long while.

So therefore, we can now deduce from all said and done above that good posture helps us to maintain balance.

Complete question:

Which of the following would be included in a neutral posture:

a. A boy sitting on an examination chair whose knees are at the same height

b. An examiner sitting on a chair whose knees are at heights far above each other apart

c. A man standing on the stairs whose elbows are lifted upward for long

d. None of the above.

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The resistance band's elasticity (stretchiness) dictates how easily it can be stretched or can be flexible.

It is the proportion of tensile stress to strain, where strain is the amount of deformation and tensile stress is the tension force applied to a surface area (amount of stretch of the resistance band).

Instead than requiring you to hold additional weight per se, resistance bands function by providing an external resistance force that can be imposed. They are flat, occasionally looping bands that might be thin or thick.

Both rubber bands and springs have a unique quality. The stretch distance affects how hard a band pulls back. The spring constant, denoted by the symbol k (in units of N/m), is a proportionality constant.

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C is the finest statement to describe the Coriolis effect. The apparent route of ocean currents curves due to the rotation of the Earth.

What is the effect of Coriolis?

This is an evident force, relative to the earth's surface, that causes moving things to the right within the Northern Hemisphere and to the left within the Southern Hemisphere as a result of the earth's rotation.

The Coriolis effect is an apparent force, relative to the earth's surface, that causes moving objects to deflect to the right within the Northern Hemisphere and to the left within the Southern Hemisphere as a result of the earth's rotation.

C is the finest statement to describe the Coriolis effect. The apparent route of ocean currents curves due to the rotation of the Earth.

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The distance separating these two charges is 2.3 m. Hence, option (B) is correct.

Electric force is the attracting or repulsive interaction between any two charged particles.

Given that: the two charges are 2.4 × 10^-6 C and -4.1 × 10^-6 C.

Force experienced by it =  1.7 × 10^-2 N.

Let the distance between them = r, then

F = kQq/r²

1.7 × 10^-2  = {9×10^9×2.4 × 10^-6×4.1 × 10^-6 }/r^2

r =√[ {9×10^9×2.4 × 10^-6×4.1 × 10^-6 }/ 1.7 × 10^-2  ]

=2.3 m.

Hence, the distance between two charges is 2.3 m.

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The result of a calculation with the Drake equation is estimating the number of worlds in the galaxy on which: C. The number of worlds in the galaxy on which civilizations are transmitting signals now.

The Drake equation, which is also known as the Green Bank equation, is used to estimate the number of communicative extraterrestrial civilizations in the Milky Way galaxy. This equation is based on electromagnetic emissions that are detectable from Earth. Hence, the correct answer is: C.

This question is incomplete. The complete options for the query are as follows:

“The result of a calculation with the Drake equation is intended to be an estimate of:

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