1
Two beaker of water A and B , initially are at the same temperature.The temperature of the

water in beaker A is increased by 10F and the temperature of water in beaker B is increased

10 K. After these temperature change,which beaker of water has the higher temperature?​

Answer:

0.08

Explanation:

We can represent the situation with the following figure

Now, by the conservation of energy, we can write the following equation

Where m is the mass, vi is the initial velocity, g is the gravity, h is the height, Ff is the force of friction, d is the distance traveled by the sledge, and vf is the final velocity.

Using the free body diagram, we get that the force of friction is equal to

Now, we can replace the expression for Ff in the equation above and solve for the coefficient of friction μ

Replacing g = 9.8 m/s², d = 16 m, vi = 3 m/s, h = 8 m, and vf = 12 m/s, we get

Therefore, the coefficient of friction is 0.08

Known :

m = 2.36 × 10⁴ kg

M = 9.4 × 10³ kg

V = 2.7 m/s

Solution :

Using the principle of momentum

m • v = (m + M) • V

(2.36 × 10⁴) • v = (2.36 × 10⁴ + 9.4 × 10³)(2.7)

v = 3.77 m/s

Answer:

Explanation: Correct on Edg 2020/2021 for my school.

The fourth option best represents the proper graph, which resembles a branch of a hyperbola.

From Coulomb's Law.

F = k · (q₁ · q₂) / r²

where

Q1 and Q2 are the charges of the two particles, F is the electrostatic force separating them, k is the Coulomb's constant, and r is the separation between them.

The force becomes weaker as the two particles move apart.

Moreover, as r approaches zero, F approaches 1 / 0 =. F is endlessly powerful when there's no separation between the two particles. As a result, the force axis will never be touched by the force about distance graph.

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The speed of the car after 5 seconds, given that the car has a uniform acceleration of 2 m/s² is 10 m/s

The following data were obtained from the question:

The final speed of the car can be obtained as demonstrated below:

v = u + at

Inputting the various parameters, we have

v = 0 + (2 × 5)

Clear bracket

v = 0 + 10

v = 10 m/s

Thus, from the above calculation, we conclude that the speed after 5 seconds is 10 m/s

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Clear question:

A car starts at rest and has a uniform acceleration of 2 m/s² .Find the speed of the car the car after 5 seconds.

Cepheids cataclysmic variables object is the period-luminosity relation used for determining distances.

Cepheid Variables are very bright stars that are 500–300,000 times as bright as the sun. They undergo brief variations every 1–100 days. They are pulsing variables that follow a predetermined pattern and experience rapid expansion and contraction. Other pulsating variables include RR Lyrae stars, which are short period, older stars that are not as massive as Cepheids; and RV Tauri stars, which are super giants with higher light fluctuations. Astronomers may study the variability of a Cepheid's brightness to determine its distance.

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The S.I. unit of E is NC^-1 and that of B is NA^-1 m^-1, then unit of E/B is A m/C (ampere meter per coulomb). This unit represents the ratio between the electric field and the magnetic field, indicating the strength and direction of the electromagnetic field.

The SI unit of electric field (E) is NC^(-1) (newton per coulomb) and the SI unit of magnetic field (B) is NA^(-1) m^(-1) (tesla). To determine the unit of E/B, we need to divide the unit of E by the unit of B.

Dividing the unit of E (NC^(-1)) by the unit of B (NA^(-1) m^(-1)), we can simplify the expression:

E/B = (NC^(-1))/(NA^(-1) m^(-1))

To simplify this expression, we can cancel out the common units in the numerator and denominator:

E/B = (N/C)/(N/(A m))

Now, let's simplify further by dividing the numerator and denominator:

E/B = (N/C) * (A m/N)

Canceling out the common units:

E/B = (A m)/(C)

Therefore, the unit of E/B is A m/C (ampere meter per coulomb).

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It is important to avoid an autoincrement primary key column in a many-to-many junction table.

A many-to-many junction table is a junction table which links multiple data in one table to multiple data in another table.

Generally in a many-to-many junction table, it is important to avoid an autoincrement primary key column.

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Answer:

A

Explanation:

Uniformly Accelerated motion : When a body moves along a straight line and its velocity increases by equal amounts in equal interval of time then the motion is called uniformly accelerated motion. E.g.:- Motion of a freely falling body.

Uniform Motion : When a body covers equal distances in a straight line, equal intervals of time are called uniform motion. Example: a car moving at 20km/h in a straight line. When a body covers unequal distance in equal intervals of time in a straight line is called non-uniform Example : spinning wheel.

In Uniform Velocity Motion a body will be moving with a constant /unchanging velocity moving in a particular direction and thus acceleration will be zero whereas in Uniform accelerated motion a body will move at constant acceleration and its velocity will keep changing with time at a constant/ steady rate.

The type of energy produced by this system is thermal energy. Sunlight is used to heat the air within the solar panels, which in turn heats the copper tubes filled with water. The heated water can then be used for various purposes, such as heating homes or generating electricity through steam turbines.

This process of using sunlight to generate heat is known as solar thermal energy, which is a renewable and sustainable source of energy. Solar thermal systems can be used in a variety of applications, from residential heating to industrial processes. Overall, solar thermal energy is an efficient and eco-friendly alternative to traditional fossil fuels.

In the type of solar energy system you described, sunlight heats the air within solar panels, which then heat copper tubes filled with water. The type of energy produced by this system is thermal energy. Thermal energy is the energy that comes from heat and is generated when the sun's rays are absorbed by the solar panels. The heated air transfers this thermal energy to the copper tubes containing water, subsequently heating the water. In summary, this solar energy system converts sunlight into thermal energy through a process involving solar panels, heated air, and copper tubes filled with water.

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The period of the pendulum is √2 seconds.

We need to know about pendulum experiments to solve this problem. The pendulum is a simple experiment to calculate gravitational acceleration. The gravitational acceleration can be calculated by

g = 4π² . L / T²

where g is gravitational acceleration, L is the length of the string and T is the period.

From the question above, we know that:

T1 = 1 s

L1 = 5 cm

L2 = 10 cm

By using proportionality, the squared period is proportional to the length. Hence,

T² ~ L

Using the ratio, we can write

T1² / T2² = L1 / L2

1² / T2² = 5 / 10

1 / T2² = 1 / 2

T2² = 2

T2 = √2 second

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Answer:

300 Joules

Explanation:

Just use the Work formula:

W = F . D

W = 10 . 30

W = 300 Joules

Answer:

dxfgjcfygu.h

Explanation:

so sorrymcgvlg;uh'ijuoi'ogf;yulcfxkchgvjhgijuiu

y'i;fyltkxfgchghui

uy8't;fultdyk

A marble rolls off a tabletop that is 1.4 m high and lands horizontally at a place 2 m from the edge of the table, t = 0.45 sec, VT=4.95 m/s, V=2.22 m/s

The conservation of energy principle can be used to compute the speed of the marble roll when it lands on the ground. Due to its height, the stone only contains potential energy at its initial position. The stone only contains kinetic energy in its final position as a result of its motion.

Generally, the equation for motion is mathematically given as

S= ut + 0.5at²

Therefore

y = Vo t + 0.5gt^2

1 = 0.5x 98 x 6²

1=4.9t^2

t= 0.45 seconds.

c) The acceleration in the x-direction will be zero because there is no force operating in that direction.

d) Throughout the marble's flight, gravity is exerting itself on it in the y direction. As a result, the marble's acceleration in the y direction will be equal to the acceleration caused by gravity

b) Horizontal motions are uniform.

V=Horizontal displacement/time

V=1/0.45

V=2.22m/s

C) Vx: 2.22 m/s At bottom,

Vy² = Voy² + 2as

Vy² = 2x95x1

Vy² = 19.6

VT=4.95 m/s

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Answer:

88.67

Explanation:

think this is right

Answer:

88.854

Explanation:

The number of microstates with the same energy is 1365.

The number of one-dimensional oscillators, N = 12

The number of quanta, n = 4

The equation for calculating the number of microstates is given by,

Ω = (n + N- 1)! /n! (N - 1)!

Ω = (4 + 12 -1)! /4! (12 -1)!

Ω = 15!/(4! x 11!)

Ω = 1365

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Answer:

I can't read it if you zoom in its still blurry

Explanation:

read the question to me and I'll try to answer it thx

Answer:

The weight of the box is 22.38 N.

Explanation:

The weight (W) of the mass is given by:

\( W = mg \)

Where:            

m: is the mass of the box = 6.0 kg

\(g_{m}\): is the acceleration due to gravity of mars

Since the acceleration due to the gravity of mars is 0.38 times that on Earth we have:

\(g_{m} = 0.38g_{E} = 0.38*9.81 m/s^{2} = 3.73 m/s^{2} \)

Hence, the weight of the mass is:

\( W = mg = 6.0 kg*3.73 m/s^{2} = 22.38 N \)

Therefore, the weight of the box is 22.38 N.

I hope it helps you!      

Answer:

The nucleolus is a ribosome factory, composed of deoxyribonucleic acid (DNA), ribonucleic acid (RNA), and protein . ... Once the subunits have been assembled, they are transported out of the nucleolus to the cytoplasm for use in translation (protein synthesis). Nucleoli are not static structures.

Explanation:

Answer:  its the central and most important part of an object, movement, or group, forming the basis for its activity and growth

A web designer is one who thinks about the best way to display information on the site.

The role of Web designers is to plan, create and code internet sites and web pages, many of which combine text with sounds, pictures, graphics, and video clips. A web designer is responsible for creating the design and layout of a website or web pages.

Web designers generally establish design guidelines, standards, and best practices. They also maintain the appearance of websites by enforcing content standards. Designing visual imagery for websites and ensuring that they are in line with branding for clients.

Therefore, a web designer is one who thinks about the best way to display information on the site.

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The acceleration of the sprinter during the first 75.0 m was 1.44 m/\(s^2.\)

We can use the kinematic equations of motion to solve this problem. Let's assume that the sprinter has an initial velocity of zero at the starting point, and a final velocity of v at the end of the 75.0 m distance. We can also assume that the time taken to cover the first 75.0 m is \(t_1,\) and the time taken to cover the last 25.0 m is \(t_2\).

For the first 75.0 m, we can use the following kinematic equation:

\(d = (1/2)at1^2\)

where d is the distance covered, a is the acceleration, and t1 is the time taken to cover the distance.

For the last 25.0 m, we can use the following kinematic equation:

\(d = vt_2\)

where d is the distance covered, v is the final velocity, and \(t_2\) is the time taken to cover the distance.

We can also use the following kinematic equation for the entire 100.0 m distance:

\(d = (1/2)at^2\)

where d is the distance covered, a is the acceleration, and t is the total time taken to cover the distance.

Using the given values of distance and time, we can write the following three equations:

75.0 m = \((1/2)at1^2\) (equation 1)

25.0 m =\(vt_2\) (equation 2)

100.0 m = \((1/2)at^2\) (equation 3)

Since the sprinter covers the last 25.0 m at constant velocity, we know that his final velocity, v, is the same as his average velocity over the last 25.0 m. Therefore, we can write:

v = 25.0 m / t2

Substituting this expression for v into equation 3, we get:

100.0 m = \((1/2)at1^2\) + 25.0 m / \(t_2\)

Simplifying this equation, we get:

200.0 m = at1^2 + 50.0 m / \(t_2\)

Now we can use equation 1 to eliminate t1:

\(t_1 =\sqrt(2d/a)\)

Substituting this expression for t1 into equation 2, we get:

25.0 m = \(v(\sqrt(2d/a))\)

Simplifying this equation, we get:

\(v^2\)= 50.0ad

Substituting this expression for \(v^2\) into the previous equation, we get:

200.0 m = (a/2)(2d/a) + (d/a) \(v^2\)

Simplifying this equation, we get:

200.0 m = d(1/2 + 1/2)

or

d = 200.0 m

Substituting this value of d into equation 3, we get:

200.0 m = \((1/2)at^2\)

Simplifying this equation, we get:

a =\((2d/t^2)\)

Substituting the given values of distance and time, we get:

a = (2 x 75.0 m / (9.87 \(s)^2)\)

a = 1.44 m\(/s^2\)

Therefore, the acceleration of the sprinter during the first 75.0 m was 1.44 m/\(s^2.\)

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Galileo used his observations of the changing phases of Venus to demonstrate that Venus orbits the Sun, rather than the Earth. During his observations, Galileo noticed that Venus displayed phases similar to the Moon, going through crescent, half, and full phases. This phenomenon could only be explained if Venus orbited the Sun and not the Earth.

Galileo's observations contradicted the prevailing geocentric model, which placed Earth at the center of the universe. By showing that Venus goes through phases, he provided direct evidence that Venus revolves around the Sun and that the heliocentric model, with the Sun at the center, was a more accurate representation of the solar system.

These observations supported the Copernican model of the solar system proposed by Nicolaus Copernicus. Galileo's work played a crucial role in challenging traditional beliefs and promoting the acceptance of the heliocentric model, paving the way for a new understanding of the universe.

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The given sentence is a complex sentence. It is a complex sentence because it has two independent clauses, and one of them is dependent. It has an independent clause "Ocean acidification is not just a problem for marine life" and a dependent clause "but it is a problem for humans as well."

The dependent clause "but it is a problem for humans as well" cannot stand on its own as a sentence. It depends on the independent clause to make sense. Hence, it is a dependent clause. Together, the independent and dependent clauses form a complex sentence.Ocean acidification is a huge problem that impacts marine life and humans in different ways. Marine life is directly impacted by ocean acidification, especially species such as coral reefs that are sensitive to pH changes. As the oceans absorb more carbon dioxide, the pH of seawater decreases and becomes more acidic. This acidity makes it difficult for marine organisms to produce shells and skeletons. In addition, it can impact their metabolism, growth, and reproduction.Humans are also impacted by ocean acidification, but in a different way. Oceans are an important source of food for humans, with many people depending on fish and other seafood for their protein needs. However, as marine life is impacted by ocean acidification, it can affect the availability of seafood and impact the livelihoods of people who depend on the ocean for their income. In addition, the acidity of seawater can also impact the tourism industry, which relies on healthy marine ecosystems for activities such as diving and snorkeling.In conclusion, ocean acidification is a complex issue that impacts both marine life and humans. As the ocean continues to absorb more carbon dioxide, it is important that we take action to reduce our carbon footprint and protect the health of our oceans.

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complete question: Consider this sentence: "Ocean acidification is not just a problem for marine life, but it is a problem for humans as well. " This sentence is a simple, compound, complex, or compound complex

Answer:  t = 10 s , s = 2,5 m

Explanation:   (1) Speed v = v0 + at and (2) distance s = v0t + ½at².

Now  v0 = 0.5 m/s , v = 0 and a = -0.05 m/s²

Solve from equation (1)   t = -v0 / a = - 0.5 m/s / -0.05 m/s² =   10 s

Add t = 10 s to equation (2 )   s = 0.5 m/s · 10 s + 0.5· (-0.05 m/s²)· (10 s)²

= 5 m - 2,5 m = 2,5 m

Answer:

Florida is situated closer to the Tropic of Cancer, which receives more constant and direct rays of the sun.

Explanation:

Took the test got it right C

The necessary speed with respect to the Earth for a rocket to escape if fired from the Earth at the equator in a direction eastward is 11.256 km/s. The necessary speed with respect to the Earth, for a rocket to escape if fired in a westward direction at the equator is 10.558 km/s.

The necessary speed, with respect to Earth, for a rocket to escape if fired from the Earth at the equator in a direction eastward will be

ve = 11.182 km/s

vr = 2πR/T

vr =2π(6,380 km)/(1 day)

vr = 464.7 m/s

vE= ve + vr = 11.182 km/s + 464.7 m/s = 11.256 km/s

The necessary speed with respect to Earth, for a rocket to escape if fired from the Earth at the equator in a direction eastward will be:

ve = 11.182 km/s

vr = 2πR/T

vr =2π(6,380 km)/(1 day)

vr = 464.7 m/s

vE = ve − vr = 11.182 km/s − 464.7 m/s

vE = 10.558 km/s

The necessary speed, with respect to Earth, for a rocket to escape if fired in a westward direction at 25° north latitude will be:

ve = 11.182 km/s

vr = 2πRcos(25°)/(1 day)

vr = 358.4 m/s

vE = ve − vr = 11.182 km/s − 358.4 m/s

vE = 10.599 km/s

The necessary speed, with respect to Earth, for a rocket to escape if fired from the Earth at the equator vertically upward is 11.182 km/s. Since the Earth is a sphere, any vertical movement will not cause the rocket to gain any additional speed with respect to Earth.

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The approximate value of the added resistance is 1566.67 Ω.

Let's call the value of the added resistance R. When a resistance is added in parallel, the equivalent resistance is given by:

1/Req = 1/R1 + 1/R2

where Req is the equivalent resistance, R1 is the original resistance, and R2 is the added resistance.

In this case, we know that the original resistance is 470 Ω and the equivalent resistance is 330 Ω. We can plug these values into the formula and solve for the added resistance:

1/Req = 1/R1 + 1/R2

1/330 = 1/470 + 1/R

R = 1566.67 Ω (rounded to two decimal places)

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The answer to the question is 1.125  Newton

Formula for electrostatic force is F = ( K q1 q2 )/ r²

where q1 and q2 represent the charges and r represents the distance between them and the value of K is 9 × 10⁹.

Total net force on q3 will be the summation of electrostatic force between q1 and q3 and electrostatic force between q2 and q3, as all the three charges are of same sign and lie in the same line.

Electrostatic force between q1 and q3

r will be 0.500 + 0.500 = 1 m

F = ( K q1 q3 )/ r²

F = ( (9 × 10⁹ ) x (5.00 x 10⁻⁶) x (5.00 x 10⁻⁶) )/ 1²

F₁₃ = 2.25  × 10⁻¹ N

Electrostatic force between q2 and q3

r will be 0.500 m

F = ( K q1 q3 )/ r²

F = ( (9 × 10⁹ ) x (5.00 x 10⁻⁶) x (5.00 x 10⁻⁶) )/ 0.5²

F = (225 × 10⁻³) / (25 × 10⁻²)

F₂₃ = 9 × 10⁻¹ N

Total force on q3 will be F₁₃ + F₂₃

Total force on q3 =  ( 2.25  × 10⁻¹ ) + (9 × 10⁻¹ ) N

Total force on q3 =  ( 2.25  × 10⁻¹ ) + (9 × 10⁻¹ ) N

Total force on q3 =  ( 11.25  × 10⁻¹ ) N

Total force on q3 =  1.125  N

Thus after solving we got the net force on q3 as 1.125  Newton

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The density of a cube that has a mass of 12. 6 and a measured  length of  4.1 cm is 0.18 kg/cm³

Density=mass/volume

mass=12.6

volume=68.9

density=12.6/68.9

density=0.18 kg/cm³

Density is defined as a material substance's mass per unit volume. Density is described by the equation d = M/V, where d stands for density, M for mass, and V for volume. Grams per cubic centimeter is the unit of measurement for density. For instance, compared to Earth's density of 5.51 grams, water has a density of 1 grams per cubic centimeter . Another way to express density is in kilograms per cubic meter (in meter-kilogram-second or SI units), It is easy to determine the relationship between mass and volume using density. For instance, the formula for determining a body's mass is M = Vd, while the formula for determining a body's volume is V = M/d.

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