A 2-kg object is moving at 3m/s. A 4-n force is applied in the direction of motion and then removed after the object has traveled an additional 5m. The work done by this force is:.

The acceleration of free fall on the planet is given by 39.2 m/s².

The acceleration of free fall is the acceleration at which a body falling freely experiences the gravitational pull of a single planet. It is also known as a gravitational acceleration.

Value of  the acceleration of free fall on earth is 9.8 m/s².

The formula of acceleration of free fall on any planet is given by:

g₁ = GM/R²

As the extrasolar planet appears to be rockier and denser than earth. it is 16 times as massive as earth, but its diameter is only twice that of earth, the acceleration of free fall on any planet is given by:

g₁ = GM/R² = 16GMe/(2Re)² = 4 GMe/Re = 4g = 4× 9.8 m/s² = 39.2 m/s² .

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The maximum speed of the mass is Vmax = 1.69m/s.

E = 10 J and m = 7kg

Vmax = [tex]\sqrt{\frac{2 * 10}{7} } = 1.69[/tex]

Vmax = 1.69 m/s

The maximum device electricity takes place when the vibrating mass reaches its maximum top and the item's velocity is maximum. while the pendulum hits its lowest factor, capability power is converted into kinetic power.

This is because the pendulum is accelerating because it hits its lowest factor. consequently the kinetic power of the pendulum is maximum at the lowest factor. the entire electricity of the block and spring device is identical to the sum of the ability electricity saved within the spring and the kinetic energy of the block proportional to the rectangular of the amplitude.

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A student weighed a chunk of solid carbon dioxide as 1.82 gram.[tex]\frac{0.85 L}{0.0011667 L}[/tex] (728.55 ) is the gas-to-solid volume ratio if the sublimated chunk produced gaseous carbon dioxide with volume 0.85 liter at atmospheric pressure.

The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure. It is the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.

density of [tex]CO_{2}[/tex] = 1.56g/[tex]cm^{3}[/tex]

density =[tex]\frac{mass}{volume}[/tex]

volume of solid  [tex]CO_{2}[/tex]

[tex]\frac{1.56g}{1cm^{3} }[/tex]=[tex]\frac{1.82 g}{?}[/tex]

? = [tex]\frac{1.167 }{cm^{3} }[/tex]

volume of [tex]CO_{2}[/tex] from  [tex]cm^{3}[/tex] to L

1 [tex]cm^{3}[/tex]= 1 mL

1.167[tex]cm^{3}[/tex]  × [tex]\frac{1 mL }{ 1cm^{3} }[/tex]× [tex]\frac{1L}{1000mL}[/tex]= 0.0011667 L

Ratio:   [tex]\frac{V gas}{V solid}[/tex]

([tex]\frac{0.85 L}{0.0011667 L}[/tex]) = 728.55

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A. The average speed of the flea is 0.52 m/s

B. the centripetal acceleration of the flea is 1.8 m/s²

A. How do I determine the average speed?

We'll begin by obtaining the angular velocity. This can be obtained a follow:

ω = 2π/ T

ω = (2 × 3.14) / 1.8

ω = 3.49 rad/s

Finally, we shall determine the average speed. This is shown below:

v = ωr

v = 3.49 × 0.15

v = 0.52 m/s

Thus, the average speed is 0.52 m/s

B. How do I determine the centripetal acceleration?

Haven obtain the average speed in the calculation made above, we can determine the centripetal acceleration as follow:

a = v² / r

a = (0.52)² / 0.15

a = 1.8 m/s²

Thus, the centripetal acceleration is 1.8 m/s²

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The final pressure of a sample of a gas (5.0 mol) at 1.0 atm is expanded at constant temperature from 10 l to 15 l is 0.67 atm

Boyle's law states that at constant temperature of a given mass of confined gas, the product of its pressure and volume is also constant. Let P1 and V1 be the initial pressure and volume of the gas and P2 and V2 be the final pressure and volume of the gas.

P1 = 1 atm

V1 = 10 l

V2 = 15 l

According to Boyle's law,

P1 V1 = P2 V2

1 * 10 = P2 * 15

P2 = 10 / 15

P2 = 0.67 atm

Therefore, the final pressure is 0.67 atm

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A baseball is thrown vertically upward and feels no air resistance. As it is rising its momentum is not conserved, but its mechanical energy is conserved.

Momentum may be defined as a unique property of a moving body that the body has by virtue of its mass and motion and that is equal to the product of the body's mass and velocity.

According to the context of this question, as an object typically moves along the vertical direction, the gravitational potential energy, and the kinetic energy change. So, due to this, its momentum is not conserved, but its mechanical energy is conserved.

Therefore, a baseball is thrown vertically upward and feels no air resistance. As it is rising its momentum is not conserved, but its mechanical energy is conserved.

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The answer to the given question is 1.90084 mm and the antenna was compressed to 19 cm respectively.

calculations;

assuming;

m = 400 kg be the total mass compressing the antenna,

h = 610 m be the height of the antenna,

g = 9.81 m/s² be gravitational acceleration,

E = 200 GPa = 2×108 N/m² be Young's modulus of steel.

The mass m applies vertical force F = mg

The cross-section of the antenna is S = πr²

Let Δh be the compression of the tower to be calculated.

By the definition of Young's modulus

Δh/h = F/(S×E)

Therefore

Δh = (h×F)/(S×E) = (h×m×g)/(πr²×E)

Substituting actual numbers

Δh = (610×414×9.81)/(π×0.15²×2×108) = 0.190084 mm

The antenna was compressed about 19 cm.

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The correct answer is pyruvate to oxaloacetate.

Enzymatic activation of pyruvate kinase increases cytosolic oxaloacetate to inhibit the Warburg effect is a research paper written by Elizabeth K Wiese, Sadae Hitosugi, Sharon T Loa, Annapoorna Sreedhar, Lindsey G Andres-Beck, Kiran Kurmi, Yuan-Ping Pang, Larry M Karnitz, Wilson I Gonsalves and Taro Hitosugi.

Avidin is a glycoprotein,  four identical subunits are there in avidin. It is found in white part  of the egg of reptiles, amphibians, and birds.

Avidin binds in specific manner with biotin.

Avidin  is resistant to some of the enzymes like  pancreatic enzymes.

Therefore, the conversions of Pyruvate into glucose and  and the conversion of  Pyruvate  into oxaloacetate would be blocked if  the  avidin is added  to a cell homogenate.

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Amplitude of wave at power of 50 W is 7.07 cm and the average power of the wave after increasing the temperature 8 times the initial power.

(a) Length of the string (l) = 8 m

Mass of the string (m) = 6 g

Wavelength of the string (λ) = 0.2 m

Wave speed (v) = 30 m/s

Average power (P) = 50 W

Mass per unit length (μ) = (6 × 10⁻³ ) / 8 = S  ×  v

Angular speed (ω) =  2 × π × f

= (2 × π × v ) / λ

= (2 × π × 30) / 0.2

Now, Average power (P) = (1/2) ×  ρ × ω² × A² × S × v,

Thus, Amplitude (A) =

= (1/ω)  × √((2 × P)/  (ρ × μ))

= A = [ (0.2) / 2×π × 30 ] √ ((2×50×8)/ (6 × 10⁻³ × 30 ))

= A = 0.0707 m

= A = 7.07 cm

(b) Average power = P

Wave speed = V

Using the equation of Power = (1/2) ×  ρ × ω² × A² × S × v,

We can see that P ∝ ω² × v

= P ∝ v² × v

= P ∝ v³

Thus, when wave speed of string is doubled, the average power will be 8 times.

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In Charle's law, volume occupied by a fixed amount of gas is directly proportional to its absolute temperature, if the pressure remains constant.Hence, correct options are A , B and C.

Gases have a tendency to expand when heated, according to the experimental gas law known as Charle's law. The Kelvin temperature and the volume will be directly proportional when the pressure on a sample of a dry gas is held constant, according to a modern interpretation of Charles's law. According to Harles' Law, a gas's volume at a constant pressure is directly proportional to its Kevin temperature for a given mass. V1/T1=V2/T2 is how the relationship between temperature and volume is expressed mathematically. The balloon will revert to its original shape once you are back in a warm environment, though. This is due to Charles' Law, which states that a gas, in this case, helium, occupies more space when it is warm.

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Answer:

[tex]\huge\boxed{\sf F = 0.28\ N}[/tex]

Explanation:

Mass = m = 68 kg

Velocity = v = 30 m/s

Time = 2 hours = 2 × 60 × 60 = 7200 s

Force = F = ?

[tex]\displaystyle F = \frac{mv}{t}[/tex]

[tex]\displaystyle F = \frac{(68)(30)}{7200} \\\\F = \frac{2040}{7200} \\\\F = 0.28 N\\\\\rule[225]{225}{2}[/tex]

A thermal infrared sensor camera detects infrared radiation and uses this information to create a picture.

In thermal or infrared detection systems, sensors are used to detect radiation in the infrared region of the electromagnetic spectrum. The thermal energy or heat produced by the scene being watched is detected by an infrared camera, which then transforms it into an electrical signal. After that, this signal is processed to create an image. An infrared camera's ability to detect heat can be quantified very precisely. Infrared cameras can be used to assess thermal performance and gauge the intensity of heat-related issues. In general, bodies and objects produce more radiation when they are heated up. Walls and other solid things cannot be seen through infrared cameras. They are limited to measuring heat.

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The answers to the questions are (a) 3.17J, (b) -13.75J, and (c) -16.7J, respectively.

The degree to which a person taking the appropriate, intellect, wisdom, insight, empathy, etc., as demonstrated by their actions or by some other mental product, such as a scholarly paper, argument, piece of art, etc. a substantial amount of such wisdom, understanding, etc. usually depths.

Utilize U=mgy, wherein y is evaluated in relation to a standard. Here, y is calculated relative towards the well's top edge, where y is set to zero.

(a) y = 1.2m: U=mgy = (0.27kg)(9.80m/s²)(1.2m)=+3.17J

(b) y = –5.2m: U=mgy = (0.27kg)(9.80m/s²)(–5.2m) = −13.75J

(c) ΔU = Uf − Ui = (−13.75J)−(3.17J) = −16.92 = −17J

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Explanation:

First person:

First person is like you telling a story. It uses words like I or we. For example "I walked to the library after school," would be an example of first person. You are talking about yourself and what you did.

Second person:

Second person is referring to someone else. It uses words like you. This is like in a choose your own adventure book, with a sentence like "You advanced to the next level," or "You opened the door cautiously." You are talking about someone else, usually the person reading what you are righting.

Third person:

Third person is like you referring to someone in general. Common words for third person are she, he, they, them, or it. It is not always you talking about yourself or someone else. Some common examples are "The girl in the red coat then ate the cookie," or "They were in trouble!"

Hope this helps!

The force, net force exerted was found to be 2000N

Define force ?

In mechanics, force is any action that seeks to sustain or modify the motion of a body or to deform it. The idea of force is usually defined in terms of Isaac Newton's three laws of motion, as stated in his Principia Mathematica (1687). Newton's first principle states that a body at rest or moving at a regular pace in a straight line will continue in that condition unless some force is applied to it.

The second law states that when an external force applies on a body, it causes the body to accelerate (change in velocity) in the direction of the force. The acceleration is related to the magnitude of the external force and inversely proportional to the amount of matter in the body. According to Newton's third law, when one body exerts a force on another, the second body exerts an equal force on the first.

the cars weigh was =1250kg

trailer weight was = 550 kg

acceleration=1.60

a) F=ma

=(550)(1.60)

=880 N

b) F=ma

The net force was found to be =880 N

c) F = ma

(1250) (1.6)

=2000N

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The induced electromotive force in the bar is 0.206 volt.

It is the creation of a potential difference in a coil as a result of variations in the magnetic flux flowing through it. To put it another way, it is said that electromotive force, or EMF, is induced when the flux connecting with a conductor or coil changes.

Given parameters:

Length of the bar: l = 0.12 meter

Speed of the bar: v = 29.6 m/s.

Magnetic field: B = 58 mT = 58 × 10⁻³ T.

Hence,  the induced electromotive force in the bar: ε = lvB

= 0.12 × 29.6 × 58 × 10⁻³ Volt

=0.206 volt.

Hence, the induced electromotive force in the bar be 0.206 volt.

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For having a perfect fronts armhole one need to measure the armhole depth.

How to measure armhole depth?

To measure armhole depth one trick is to wrap a measuring tape from the shoulder to the armpit.

One can take measuring tape  down over the front of the shoulder and arm, pausing once it hits the center of armpit. This measurement is referred to as your Armhole depth.

Formula for measuring the correct armhole

An armhole is a sleeve that joins body and shoulder by which the sleeve meets the body at the underarm.

There is a Formula for measuring the correct sleeve and each specific site has its own table to measure the perfect armhole

In Centimeters the formula is

Bust/6 + 3.5 to 6cm

In inches the formula is

Bust/6 + 1.37 to 2.3 in

The usual width of the armhole is 4-6cm  

If a person is XS -S most likely they will have 4cm of width for their sleeve

And if the person is M, L or XL, most likely they will have width of 5-6cm

Hence this can also be taken as reference.

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The distance to the concession booth is 1.386 kilometers, or kilometers per hour. A swim meet's length is influenced by a number of variables.

Explanation:

d = 0.18 * 7.7 = 1.386km/hr.

The distance to the concession booth is 1.386 kilometers, or kilometers per hour.

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The energy dissipation should be 65 Kilo joule.

Power is nothing but measurement the rate of electrical energy transfer by an electric circuit per unit of time. It is denoted by P and measured using the SI unit of power which is watt or one joule per second. Electric power is commonly supplied by electric batteries and produced by electric generators.

So, P = ΔE/Δt

here P = 1 megawatt and time is 65 x 10^-3 sec

putting the values we get that

1 x 10^6 =  ΔE/ 65 x 10^-3

ΔE = 10 ^ 6 x 65 x 10 ^-3

ΔE = 65 x 10 ^3

ΔE = 65 K Joule

hence the energy dissipation should be 65 Kilo joule.

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Density and refractive index are class characteristics and match does not meet the criteria for individualizing glass fragment to a common source is true.

The only way to individualize glass fragments at a crime scene to a single source is to assemble the fragments and physically fit them together just like a jigsaw puzzle.

Glass is physical and class evidence. Glass can be considered as an individual evidence if the pieces of broken glass can be reassembled & can help in identifying location, sequence of events & object identity

Forensic glass samples can be analyzed by comparing refractive index of the sample to the possible source.

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The two independent components of Projectile motion in 2D plane are horizontal and vertical.

Projectile motion is nothing but a form of motion experienced by an object or particle that is projected in a gravitational field, such as from Earth's surface, and moves along a curved path under the action of gravity only. It means the object is thrown from earth and due to the gravity object is again coming back to earth.

When object is moving up, the velocity it has can be derived into  its components horizontally and vertically because velocity is a vector quantity.

V = Vx + Vy

where V is the resultant vector and Vx and Vy are the horizontal and vertical components of the velocity.

Hence the two independent components of Projectile motion in 2D plane are horizontal and vertical.

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This statement is untrue. A pseudo force is centrifugal force. It's not true. Since there is a hole in the spin dryer's drum, there is nothing to cause the water to move in a circular motion or exert a high centripetal force.

The force that pushes an item rotating away from its axis of rotation is known as centrifugal force. The propensity of an object travelling in a circle to move away from the circle's center is known as centrifugal force. When viewed from a rotating frame of reference, the centrifugal force in Newtonian mechanics appears to act on every object. It is pointed away from the origin of the coordinate system, along an axis that is perpendicular to the axis of rotation.

When rotating coordinate systems are used to analyze rotating objects, such as centrifuges, centrifugal pumps, centrifugal governors, and centrifugal clutches, as well as centrifugal railways, planetary orbits, and banked curves, the concept of centrifugal force can be applied.

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When scientists refer to the cosmos as expanding, they indicate that it has been expanding ever since the Big Bang, when the universe first began.

Everything in the cosmos is all the matter and energy that are present in space are included. Additionally, it naturally encompasses you and time itself. The other planets and their numerous moons, in addition to Earth and the Moon, make up the cosmos.

Due to their frequent confusion, it's also critical to understand the distinction between space and the universe. All celestial bodies, matter, energy, galaxies, solar systems, and other such physical entities are collectively referred to as the universe. Space, on the other hand, describes the bare space in between all of these things.

As of right now, there is no evidence to support the existence of multiple universes; instead, what we can see points to the existence of just one, namely, our own.

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Supernova debris moves about 100 times faster than the Sun. The gravity of galaxy alone would not retain the supernova debris.

A planet's orbital velocity modifications, depending on how far it's far from the solar. The closer a planet is to the solar, the more potent the sun's gravitational pull on it, and the quicker the planet actions. The farther it's far from the sun, the weaker the Solar's gravitational pull, and the slower it moves in its orbit.

Hubble's law, which says certainly that a galaxy's speed is directly proportional to its distance, additionally tells us some thing important approximately the country of the universe. If the universe is static and unchanging, there should be no correlation among distance and pace.

They must come to be greater turbulent. It produces so much visible light that it is opaque and blocks our view of anything beyond it. It reflects most light from far distances of the galaxy away from our line of sight. A star starts offevolved its time on the principle sequence with 10 solar loads.

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kinematics can answer all the following questions except, Why does a baseball drop to the ground down after being thrown?

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The acceleration of the block moving upward is 5.15g.

The two blocks of mass 5 kg and 4.71 kg are connected by a massless rope, that goes over a frictionless, stationary pulley.

The acceleration of the 5 kg block is 34g in downwards direction.

So, if the tension is the rope is T, then we can write,

For the 5 kg block,

5g - T = 34g

For the 4.71 kg block,

T - 4.71g = 4.71a

Where, a is the upward acceleration of the block of mass 4.71 kg,

Solving the above 2 equations,

We get,

5g - 4.71(a-g) = 34g

Solving further,

9.7g - 4.71a = 34g

4.71a = -24.3g

a = -5.15g

So, the upward acceleration of the 4.71kg block is -5.15g.

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The separation between two plates of parallel capacitor is 8.51 mm and when the separation is doubled the capacitance is reduced to halve.

Magnitude of Charge (Q) = 290 pc

Potential difference between plates (V) = 41.0 V

Let capacitance be = C

Using the relationship between charge and potential difference,

= Q = C × V

= C = Q / V

= C = 290 × 10⁻¹² / 41

= C = 7.07 × 10⁻¹² F

Now, we know that C = (ε × A) / d

Here, Area (A) = 6.80 cm² and

Distance = d

Thus, distance =

= d = (ε × A) / C

= d = (8.85 × 10⁻¹² × 6.80 × 10⁻⁴) / (7.07 × 10⁻¹²)

= d = 8.51 × 10⁻⁴ m

= d = 8.51 mm

Using Q = C × V,

= V = Q/C

If the separation between the two plates is doubled, then the capacitance is halve of the original value.

Thus, new V =

= 41 × 2

= 82 V

Hence, the new capacitance is 82 V when the distance of plates is doubles and the original separation between plates is 8.51 mm.

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The range of the wavelength 650-740 nm is of the colour red, 390-420 nm is of the colour violet, 510-550 nm is of the colour green, 450-480 nm is of the colour blue, 570-600 nm is of the colour yellow, 600-640 nm is of the colour orange.

The visible region of the electromagnetic spectrum ranges from higher frequency (violet) to lower frequency (red).

All the forms of electromagnetic radiation fall within the electromagnetic spectrum.

Electro magnetic energy travels in waves that contains a broad spectrum from radio waves to gamma rays. The human eye can detect a very small portion of this spectrum known as visible light ranging from 380-700 nano metres.

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The two sound waves should have a rhythm in order to create beats.

Option d). slightly different frequencies

The frequency of an event is its repetitions per unit of time. In contrast to spatial frequency, it is also sometimes referred to as temporal frequency, and in a contrast to angular frequency, it is also referred to as ordinary frequency. Hertz (Hz), which equals one (event) per second, is the unit of frequency. The reciprocal of frequencies is period, which is defined as the length of time for one cycle of a recurring occurrence. For instance, if a heart beats 120 times per minute (2 hertz), its period (T), or the space between beats, is half a second (60 seconds divided by 120 beats). In science and engineering, frequency is a crucial specification parameter.

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The term is growth.

This term is used to define the physical development of height and weight in an individual.

The growth depends on an individual.

During the growth the hands and feet are likely to grow. This develops the height of any individual and the weight is also defined as the individual grows.

It is the continuously changes of the characteristics of the body, most noticeable in height and weight.  

The ages 13-15 and 17-18 the two major brain growth spurts occur. In times of growth spurts the changes is visible during the first year of puberty.

Therefore, the term for periods of accelerated physical development with associated changes in height and weight is growth.

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