Which of the following represents energy in its most disordered form? Group of answer choices Chemical-bond energy Electromagnetic (light) energy Heat energy Potential energy The kinetic energy of a moving object

Answer:

The answer to the question is

The two balls, although of different masses, could be made to have the same demolishing force by setting the velocity of the 100 kg ball to 1.5 times the velocity of the 150 kg ball.

That is if V₁ is the velocity of the 150 kg ball and  V₂ is the velocity of the 100 kg ball then V₂  = 1.5×V₁ for the demolishing effect of the two balls to be equal.

Explanation:

To answer the we are required to explain the meaning of momentum and state its properties

Momentum is a physical property of an object in motion. It indicates the amount of motion inherent in the object.  An object in motion is said to have momentum

The types of momentum possessed by an object can be classified into either

1, Linear momentum or

2. Angular momentum

An object moving with a velocity, v has linear momentum while a spinning object has an angular momentum

The momentum is given by the formula

P = m × V

Where m = mass and

V = velocity

Newtons second law of motion states that, the force acting on an object is equivalent to the rate of change of momentum produced and acting in the direction of the force

Properties of momentum

From the above statements it means that the two balls can be made equivalent by having the appropriate amount of speed. That iis the two balls can have the same momentum thus for equal momentum effect, we have

150 kg × V₁ = 100 kg × V₂

or V₂ = 1.5×V₁

Answer with Explanation:

We are given that

Diameter of coil=d=0.115mm

Radius, r=[tex]\frac{d}{2}=\frac{0.115}{2}=0.0575mm=0.0575\times 10^{-3} m[/tex]

Using [tex]1mm=10^{-3} m[/tex]

Electric field=E=0.235V/m

T=55 degree C

[tex]T_0=20^{\circ} C[/tex]

[tex]\rho_0=2.82\times 10^{-8}\Omega m[/tex]

[tex]\alpha=3.9\times 10^{-3}/C[/tex]

(a).We know that

[tex]\rho=\rho_0(1+\alpha(T-T_0))[/tex]

Substitute the values

[tex]\rho=2.82\times 10^{-8}(1+3.9\times 10^{-3}(55-20))[/tex]

[tex]\rho=3.2\times 10^{-8}\Omega m[/tex]

(b).Current density,[tex]J=\frac{E}{\rho}[/tex]

Using the formula

[tex]J=\frac{0.235}{3.2\times 10^{-8}}=7.3\times 10^6A/m^2[/tex]

c.Total current,I=JA

Where [tex]A=\pi r^2[/tex]

[tex]\pi=3.14[/tex]

Using the formula

[tex]I=7.3\times 10^6\times 3.14\times (0.0575\times 10^{-3})^2[/tex]

I=0.076A

d.Length of wire=l=2m

[tex]V=El[/tex]

Substitute the values

[tex]V=0.235\times 2=0.47 V[/tex]

Answer:

Explanation:

Given that,

The initial point A=(0,-2)

And the final point B=(3,6)

O is a reference point (0,0)

OA=r1=(0,-2)

OB=r2=(3,6)

Then we want to find their combination vector i.e AB.

AB is given as position vector B - position vector A

So, AB=OB-OA

AB=r2-r1

AB=(3,6)-(0,-2). Note -×-=+

Then, AB=(3-0,6--2)

AB=(3,6+2)

AB=(3,8)

In vector form

AB=3•i +8•j

Answer:

Explanation:

Given that

Tangential acceleration (at) =3m/s²

The propeller blade starts from rest i.e. wo=0rad/sec

And also the change in time ∆t=5sec

Also radius of blade (r)=1.5m

We have the tangential acceleration, so we need the centripetal acceleration

Which is given as

ac=v²/r

Then we need to get the final velocity using equation of motion

v=u+at

Where (a) is the tangential acceleration = 3m/s²

And the is final time at t=5sec

v=0+3×5

v=0+15

v=15m/s

Then, ac=v²/r

ac=15²/1.5

ac=150m/s²

Then, the total acceleration is given as

a=√(at)²+(ac)²

Since at=3m/s² and ac=150m/s²

Then,

a=√3²+150²

a=√22509

a=150.03m/s²

The total acceleration is 150.03m/s²

Answer:

684J

Explanation:

So basically the formula for gravitational potential energy is Mass X Gravity X height. That is G.p.e = mgh

We don't have the mass but since we have the height, we multiply directly with the height since the quantity of weight is already given.

so G.p.e = 360 X 1.9 = 684J

Note that; The answer is in joules because g.p.e is work done.

Hope that was helpful!!

Answer:

a) The force between the two wires is attractive.

b) (F/L) = (μ₀I²)/(2πd)

Explanation:

a) According to Ampere's law, current in the same direction attract, while current in opposite directions repel. So, for this case of two wires carrying curremt in the same direction, the force between the wires is attractive.

b) The force of attraction between two current carrying wires carrying currents of magnitude I₁ and I₂ respectively, at some distance d, apart is given as

F = (μ₀ I₁ I₂ L)/(2πd)

(F/L) = (μ₀ I₁ I₂)/(2πd)

I₁ = I₂ = I

(F/L) = (μ₀I²)/(2πd)

Hope this Helps!!

(a) The force between the two wires is attractive.

(b) The force per unit length between the two wires is (μ₀I²)/(2πd)

(a) It is given that two wires carry current in the same direction, so the force between the wires will be attractive.

(b) The magnetic force between the two wires carrying currents I₁ and I₂ separated by a distance d, is given by:

dF = I₁dl × B₂ force on wire with current I₁ due to magnetic field of the wire with current I₂

dF = I₁dl ×  (μ₀I₂)/(2πd)

F = (μ₀ I₁ I₂ L)/(2πd)

(F/L) = (μ₀ I₁ I₂)/(2πd)

since I₁ = I₂ = I

(F/L) = (μ₀I²)/(2πd)

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Answer:

The angular velocity of the woman will decrease when she extends her arms outwards.

Explanation:

We know that the angular momentum of a body is the product of its angular velocity and the moment of inertia.

So, mathematically:

[tex]L=I.\omega[/tex]

where:

[tex]I=[/tex] moment of inertia (second moment of mass that depends upon the radial distance of the mass from the center of rotation)

[tex]\omega=[/tex] angular velocity

When the woman extends her arms she increases the radial distance of her mass form the axis of rotation thus increasing the moment of inertia of her body. As the angular momentum in this case remains constant so proportionately the angular velocity of her body increases.

[tex]I'\times \omega'=I\times \omega[/tex]

The angular velocity will  increase and angular momentum remains constant, when she extends her arms outward.

The given problem is based on the concept of angular momentum. The angular momentum of a body is the product of its angular velocity and the moment of inertia.  So, mathematically:

[tex]L = I \times \omega[/tex]

Here,

I is the moment of inertia.

[tex]\omega[/tex] is the angular velocity.

Note: - The moment of inertia (I) depends on the radial distance and mass of object.

So in the given problem, when the woman extends her arms she increases the radial distance of her mass and form the axis of rotation. Thereby increasing the moment of inertia of her body. As the angular momentum in this case remains constant so proportionately the angular velocity of her body increases.

Thus, we can conclude that the angular velocity increases and  angular momentum remains constant, when she extends her arms outward.

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Answer:

The time taken by the personal computer to 'surf' the internet is 11.13 h.

Explanation:

The expression for the energy in terms of current and time is as follows;

E= Vit

Here, V is the potential, i is the current and t is the time.

According to question, in doing a load of clothes, a clothes drier uses 18 A of current at 240 V for 41 min.

Convert time from minute to second.

[tex]t=\frac{41}{60}s[/tex]

Calculate the energy used by the clothes drier.

Put V= 240 V, [tex]t=\frac{41}{60}s[/tex] and i=18 A in the expression for the energy.

[tex]E= (240)(18)\frac{41}{60}[/tex]

E'= 2937.6 W

Therefore, the energy of a clothes drier is E'= 2937.6 W.

It is given in the problem that a personal computer, in contrast, uses 2.2 A of current at 120 V. With the energy used by the clothes drier, this computer is used to surf the internet.

Calculate the time taken by the computer to 'surf' the internet.

E'=V'i't'

Here, V' is the voltage used by the a personal computer, i' is the current and t' is the time taken by the personal computer.

Put E'= 2937.6 W, V= 120 V and i'= 2.2 A.

2937.6 = (120)(2.2)t'

[tex]t'=\frac{2937.6}{264}[/tex]

t'= 11.13 h

Therefore, the time taken by the personal computer to 'surf' the internet is 11.13 h.

Final answer:

The most appropriate biomaterials for artificial tendons are polymers, due to their high toughness, elasticity, and ability to mimic natural extracellular matrices.

Explanation:

For fabricating an artificial tendon, which requires the capacity to sustain substantial deformation at low forces and quickly return to its original dimensions after stress release, polymers would be the most appropriate class of biomaterials. Biopolymers like collagen are noted for high toughness and elasticity, vital properties for mimicking the natural structure and function of tendons. Modern bioengineering strategies also involve creating synthetic extracellular matrices (ECM) which utilize peptides and polymer conjugates to mimic natural ECM, providing both structural support and facilitating tissue integration and regeneration.

Metals and ceramics, while being strong and rigid, do not offer the same flexibility and elastomeric properties required by tissues such as tendons that undergo repeated and significant strain. Semi-flexible polymers and polymer gels on the other hand, have been engineered to possess a balance of strength and flexibility, similar to that of natural tendon tissue.

Answer:

(a) 0.1134 L

(b) 2.009 L

(c) 0.07 cm from the top

Explanation:

The volume of the aluminum container and the turpentine is 2.000 L at  23 °C.

(a) When the entire system is heated to from 23 °C to 91 °C. The volume of the aluminum container is:

Vf = Vi*(1 + 3α*ΔT)

where:

Vi is the initial volume, Vf the final volume, α is the linear expansion coefficient and ΔT is the temperature change.

Vf = 2*[1 + 3*2.4 *10^-5*(91 - 23)] = 2.009 L

The volume of the turpentine is

Vf = Vi*(1 + β*ΔT)

where:

β is the  volume expansion coefficient

Vf = 2*[1 + 9.0*10^-4*(91 - 23)] = 2.1224 L

The overflow is:

2.1224  - 2.009 = 0.1134 L

(b) the volume of turpentine remaining in the cylinder at 91 °C is the same volume of the hollow aluminum cylinder, that is, 2.009 L

(c) Cooling the system back to 23 °C means the aluminum container is back to 2.000 L. The  volume of turpentine is:

Vf = 2.1224*[1 + 9.0*10^-4*(23-91)] = 1.9925 L

The following proportion must be  satisfied:

Volume of turpentine / Volume of container = deep turpentine / deep of container

1.9925 / 2.000 = deep turpentine/19

deep turpentine = (1.9925 / 2.000)*19 = 18.93 cm

This is 19 - 18.93 = 0.07 cm from the top

Explanation:

The statement can become true by changing 'increase' to 'decrease'. Hence, when the velocity of a fluid increases, its pressure decreases as per Bernoulli's Principle.

The false statement can be rewritten to say 'Bernoulli's Principle indicates that an increase in the velocity of a fluid will cause its pressure to decrease.

This principle is utilized in various applications such as the lift on an aircraft wing and the functioning of a curve ball in baseball. It states that, in an inviscid flow of a non-conducting fluid, an increase in the speed of the fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid potential energy.

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Answer:

The answer to the question is

A 100 lb person would weigh 300.33 lbf at the upper atmosphere of Jupiter

Explanation:

To solve the question we note that

Mass of object = 100 lb =‪ 45.35924‬ kg

Mass of Jupiter = 300×Mass of Earth = 300×5.972 × 10²⁴ kg =1.7916×10²⁷ kg

Radius of Jupiter = 10× Radius of Earth = 10×6,371 km = 63710 km

Gravitational constant, G = 6.67408 × 10⁻¹¹ m³ kg-1 s-2

Gravitational force is given by [tex]F_G= \frac{Gm_1m_2}{r^2}[/tex]

Plugging in the values we get

[tex]F_G[/tex] = [tex]\frac{6.67408*10^{-11}*45.35924*1.7916*10^{27}}{63710^2}[/tex] = 1335.93 N

Converting into lbf gives 1335.93 N *0.2248 lbf/N = 300.33 lbf

On Jupiter, you would weigh 2.5 times more than on Earth due to its stronger gravity. Therefore, if you weighed 100 lb on Earth, you would weigh approximately 250 lb in the upper atmosphere of Jupiter though your weight may slightly vary with altitude. It is important to note that while weight changes with location, mass remains constant.

If you weighed 100 lb on Earth, it is interesting to calculate what you would weigh in the upper atmosphere of Jupiter. Since gravitational force is what we perceive as weight, and gravity varies with the mass of the planet and the distance from its center, we can determine the comparative weight. Jupiter has a mass approximately 318 times that of Earth and a radius about 11 times greater. However, for simplicity, the student question references Jupiter's mass as 300 times that of Earth and a radius 10 times that of Earth. This would normally impact the surface gravity calculation significantly.

Now, since it's stated that on Jupiter you would weigh 2.5 times more than on Earth, if you weigh 100 lb on Earth, you would weigh 250 lb on Jupiter. But note that in the upper atmosphere, your weight might be slightly less than this because you would not be at Jupiter's surface, and gravity decreases with altitude.

Lastly, remember the important conceptual distinction: While your weight changes depending on the gravity of the celestial body you are on, your mass remains constant. Your mass represents the amount of matter within you and does not change with location.

Answer:

The correct answer is Can be pronounced in many ways.

Explanation:

Typically a consultant is hired to solve a major business problem, carry out a major change and increase sales. The consultant, with experience of other companies, with methodology resources listens to the client's need, - the current situation and design an effective plan to implement, thus creating a positive impact on the business in a short time.

Answer: Antibody molecules

Explanation:

The immune system is categorised into two functional systems:

-Innate (natural) immune system and

-Acquired (adoptive) immune system.

The acquired immune system plays a major role against all the microbes capable of producing diseases and they are classified into two namely: Humoral and cell mediated immunity. The humoral immunity involves the B cells and the production of antibodies which are specific to invading antigens of disease causing organisms.

Antibodies are molecules of the adaptive defence system that provides humoral immunity by circulating freely in the blood and lymph.

Answer:

Explanation:

The package had the same velocity as the plane when it was dropped. Newton's 1st Law says that "an object in motion tends to stay in motion, at the same velocity, in a straight line unless acted on by an outside force".

There only outside force acting on the package was its weight -- that force is straight down. The horizontal velocity that the plane gave the package continued (as Newton said it would), so as it fell, horizontally it kept pace with the plane.

Explanation:

As we know that

time = distance/speed

The time used for firs half of the trip was

(1 mi)(12 mi/hour) = 1/12 hours = 5 minutes

The last half of the trip will took 10 minutes, 1/6 hour.

Speed = distance/ time

(1 mil) = (1/6h) = 6 mil/h

so the speed for last half of the trip was = 6mph

the average speed was

(2mil)(1/4 hour) = 8 mil/hour

So the ling's average speed was 8mph.

Answer:

The ball travels at a speed of 11.662 m/s, making a 30.96° angle from the horizontal ground.

Explanation:

If the ball is thrown horizontally with a speed of 10.0 m/s and the hot air balloon is rising at a speed of 6.0 m/s then we can make the following deductions:

1. The ball is ALSO rising at a speed of 6.0 m/s

2. The vertical speed of the ball is 6.0 m/s

Thus the ball travels with 10 m/s horizontal and 6 m/s vertical speed relative to the ground.

To find the total speed and direction:

Total speed = [tex]\sqrt{(V_X)^2+(V_Y)^2}[/tex]

Total speed = [tex]\sqrt{10^2 + 6^2}[/tex]

Total speed = 11.662 m/s

Angle from the horizontal:

Tan( Angle ) = Perpendicular / Base

Tan (Angle) = Vertical Speed / Horizontal Speed

Tan (Angle) = 6/10

Angle = 30.96°

The initial velocity of the ball thrown horizontally from the basket of a hot-air balloon relative to a person on the ground is 10.0 m/s in the horizontal direction.

The initial velocity of the ball relative to a person standing on the ground can be found by adding the velocities of the ball and the hot-air balloon together. Since the ball is being thrown horizontally outward, its initial velocity in the horizontal direction will be 10.0 m/s. The vertical velocity of the balloon is 6.0 m/s, but since the ball is not thrown vertically, this velocity does not affect its horizontal velocity.

Therefore, the initial velocity (magnitude and direction) of the ball relative to a person on the ground will be the same as its initial velocity when thrown from the basket, which is 10.0 m/s horizontally.

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Answer:

Conservation

Explanation:

She has observation conservation because If the temperature of the liquids stays constant and the container is insulated and not heat or cool the liquid much would not change the density of the liquid very much so that it's original volume could remain constant.

The interesting thing is not that the child assumes the taller glass holds more liquid but that they fail to understand conservation: the fact that the water from one glass is going to be the same amount after being poured into any other container. It's as if they did not realize the water came from the same glass.

Answer:

The resultant force is F=6i-j-14k while the resultant Moment is about point O (M_o) is 1.3i +3.3 j -0.45k.

Explanation:

As the complete question is not given, the complete question is attached herewith

The coordinates of the points from the Free-body diagram are given as

0=(0,0,0) m

A=(0.15,0,0.3) m

B=(0,-0.25,0.3) m

the position vector of OA is

roa=(0.15-0)i +(0-0)j +(0.3–0)k

= 0.15i +0j +0.3k

the position vector of OB is

rob =(0-0)i +(-0.25 - 0); +(0.3–0)k

= 0i -0.25j +0.3K

Now

The equivalent resultant force is expressed as,

F = F1+ F2

Substitute 6i - 3j -10k for  F1, and 2j -4K for F2.

F =6i -3j -10k +2j - 4k

= 6i - 1j -14k

So the resultant force is F=6i-j-14k.

Resultant couple moment at point O is expressed as,

[tex]M_o=r_{OA}\times F_1+r_{OB}\times F_2\\M_o=\left|\begin{array}{ccc}i&j&k\\0.15&0&0.3\\6&-3&-10\end{array}\right|+\left|\begin{array}{ccc}i&j&k\\0&-0.25&0.3\\0&2&-4\end{array}\right|\\M_o=0.9 i+3.3j-0.45 k+0.4 i+0 j+0k\\M_o=1.3 i+3.3 j-0.45 k[/tex]

The moment of the resultant force about point O (M_o) is 1.3i +3.3 j -0.45k.

Radiative energy

Explanation:

The light from polaris travels through space in the form of energy is called  

Radiative energy.

This energy is transferred by means of electromagnetic radiation like X-rays, gamma rays, light, heat radiation and so on. It can travel through space in the form of radiation. For instance, we get the heat through the sun, that is located far away from the Earth by means of radiation. Through the electromagnetic waves,  sun's heat is transmitted and not  through any kind of solid medium, but by means of vacuum.

Answer:

did you get the answer?

Explanation:

Answer:

did you get anything?

Explanation:

Answer: The Rate constant is 1.209

Explanation:

in the attachment

Explanation:

Below is an attachment containing the solution.

To find out after how many years the activity level of a sample with a half-life of 10 years decreases from 2 curies to 0.25 curie, we calculate that it takes 30 years.

The question asks, "A sample of radioactive waste has a half-life of 10 years and an activity level of 2 curies. After how many years will the activity level of this sample be 0.25 curie?" To solve this problem, we follow the basic principle of half-lives, which states that the amount of a radioactive substance decreases to half its initial amount after one half-life period.

In this example, the activity decreases from 2 curies to 0.25 curies. To go from 2 curies to 1 curie, it takes one half-life (10 years). To go from 1 curie to 0.5 curies takes another half-life (adding up to 20 years in total). Finally, to decrease from 0.5 curies to 0.25 curies requires a third half-life period, adding another 10 years, for a total of 30 years.

Therefore, it will take 30 years for the activity level of the sample to reduce to 0.25 curie.

Answer:

0.08kg

Explanation:

K.E = 1/2 mv^2

v = 970m/s

K.E = 3.9x 10^3J= 3900J

K.E = 1/2 mv^2

3900 = 1/2 m x 970x 970

3900 = 1/2 ×940900m

3900 = 470450m

m = 3900/470450 = 0.00828993516 = 0.008kg

I think the Answer is 0.08kg

The fundamental frequency of a piano wire can be calculated using the formula f = sqrt(T/(4L^2*m)). Plugging in the given values, the fundamental frequency of the piano wire is 116.6 Hz.

The fundamental frequency of a piano wire can be calculated using the formula:

f = √(T/(4L2m))

Where f is the fundamental frequency, T is the tension, L is the length, and m is the mass per unit length.

Plug in the given values:

T = 2030 N

L = 1.3 m

m = 0.003 kg/m

f = √(2030/(4*1.32*0.003))

Solving this equation gives the fundamental frequency f = 116.6 Hz.

Answer:

tan 75/350

Explanation:

the cliff is the height 75 and the length is 350 the other side is added to form a triangle . the tan rule is then used.

Explanation:

The number of subshell present are s, p, d, and f

The number of orbitals in each are as follows -

The number of orbitals can be calculated by the degeneracy,  2 l + 1 , where l denoted is angular momentum quantum number that determines the shape of an orbital. For s, p, d, and f the angular momentum quantum number is 0, 1, 2 3 respectively.

So, maximum number of f orbitals that are possible can be calculated as -

2 ×  l + 1  =  2  × 3  + 1  =  7

Answer 62.78mph

Explanation:

Answer:

The returning speed = 70 miles per hour (mph)

Explanation:

Answer:

Age

Depth

Explanation:

Viscosity is referred to as a measure of a material's resistance to flow

Rise in temperature or heat, burial, exposure to existing magmas, dissolved gases, exposure to mantle plumes, decreasing pressure, and high water content, crystal composition are factors that affect the viscosity of magma;

However, age and depth are two of the factors that do not affect the viscosity of magma/lava

Answer:

The question is incomplete because it lacked the options. These are the options..

a. composition

b. age

c. temperature

d. dissolved gases

Answer is B. Age.

Explanation:

Viscosity is simply described or explained as the resistance to flow.

Magma is known to be the molten rock material under the Earth's crust. It known to come out from the rock or mountain through the vent during volcano eruption.

All the other options except the age, that is , composition, temperature and dissolved gases  contribute to the viscosity of the magma.

Magma with higher SiO and, increase in temperature tends to increase viscosity of the magma.

Explanation:

∴  The Correct option is (b)