Will a 5g piece of platinum sink or float in water

Answer:

a) 1.19 x 10^7 N/C

b) 2 x 10^-12 N

Explanation:

field due to Cl on (9.0xE¡)(1.6x10-19 C) (1.5Å—10-9m) -6.4x10 N/C field due to Ca+3 ion, 2(90x10 (1.6x10-19c) ((4.5-1.5)Å—10-9 m)' magnitude of net field at given point without dielectric E E+E 6.4x108 +3.2x108-9.6x10 N/C magnitude of net field at given point with di electric K 80.4 the force on sodium ion at this point, F-Edq= (1.19å—107 N/C)(1.6å—10-19C)= 2.0Å—10-12 N

The nature of the image formed by the convex lens is virtual, the position of the image is 30 cm away from the lens on the same side as the object, and the size of the image is twice the size of the object. The magnification is 2, meaning the image is magnified.

Given:

Object height (h) = 5 cm

Focal length of the convex lens (f) = 10 cm

Object distance (u) = 15 cm (positive since it's on the same side as the incident light)

To determine the nature, position, and size of the image, we can use the lens formula:

1/f = 1/v - 1/u

Substituting the given values:

1/10 = 1/v - 1/15

To simplify the equation, we find the common denominator:

3v - 2v = 2v/3

Simplifying further:

v = 30 cm

The image distance (v) is 30 cm. Since the image distance is positive, the image is formed on the opposite side of the lens from the object.

To find the magnification (M), we use the formula:

M = -v/u

Substituting the values:

M = -30 / 15 = -2

The magnification is -2, indicating that the image is inverted and twice the size of the object.

For more such information on: convex lens

https://brainly.com/question/30010355

#SPJ8

The radius of the sphere decreases by 11 mm when the pressure on its surface is increased by 200 MPa.

To determine the decrease in radius of the spherical volume of water when the pressure on its surface is increased, we can use the equation relating pressure to the radius of a sphere:

ΔP = K/R

Where ΔP is the change in pressure, K is a constant, and R is the radius of the sphere.

In this case, we're given that ΔP (change in pressure) is 200 MPa and the initial radius R is 20.0 cm. We need to find the change in radius ΔR.

We can rearrange the equation to solve for ΔR:

ΔR = K/ΔP

Now, we need to determine the value of the constant K. The constant K depends on the bulk modulus of the material, which is a measure of its resistance to compression. For water, the bulk modulus is approximately 2.2 GPa (gigapascals).

Substituting the values into the equation, we have:

ΔR = (2.2 GPa) / (200 MPa)

To simplify the calculation, we need to convert the units so that they are consistent. Let's convert GPa to MPa:

ΔR = (2.2 GPa * 1000 MPa/GPa) / (200 MPa)

ΔR = 11 mm

Therefore, the radius of the sphere decreases by 11 mm when the pressure on its surface is increased by 200 MPa.

For more such questions on sphere,click on

https://brainly.com/question/30271191

#SPJ11

The correct answer is 2.9 m/s.

Average speed combines two concepts into a single word: speed, which is a change in position, and average, which refers to a mean determined from many different data points.

By dividing the distance an object travels in one unit by the amount of time it takes to travel that distance, one may determine the speed of the object. The speed of the item on this voyage, denoted by the letter "s," is equal to s = D/T if "D" is the distance traveled in some time "T."

Given,

time = 6.2 seconds

distance = 60 feet

speed = distance/time

speed = 60/6.2

speed = 9.67 feet/s

speed = 2.9 m/s

To learn more about average speed refer the link:

https://brainly.com/question/9834403

#SPJ9

Answer:

Electron groups could be considered as  Lone pair electrons and bonded pairs of electrons.

Answer: Option D & B

Explanation:

The two or more electrons can be bonded by single bond, double bond, covalent bond of electrons can simply be lone pair of electrons. Unshared pair of electrons are generally termed as lone pair of electrons in an atom which are generally present in the outermost shell of atoms. Hence electron groups can be determined by bonded pairs and lone pairs of electrons.

I got this from another brainly user

It is female (XO).A karyotype can be used to diagnose a chromosomal disorder by examining the number and arrangement of a person's chromosomes.

Chromosomes are thread-like structures located in the nucleus of cells that carry genetic information in the form of genes. They are composed of DNA and proteins and are responsible for directing the development and functioning of cells. In humans, chromosomes come in pairs of 23, with one copy of each pair inherited from each parent.

For example, Down Syndrome is caused by an extra chromosome 21, Klinefelter Syndrome is caused by an extra X chromosome in males (XXY), and Turner Syndrome is caused by a single X chromosome in females (XO).

To learn more about chromosomes

https://brainly.com/question/3577797

#SPJ1

Answer:

1.4 m/s2

Explanation:

i took the test

Answer:

amplitude:1m

period:10s

Explanation:

The government derive its power according to the Declaration of Independence is the document that declare the freedom of the people. The document was approved by the Continental Congress on July 4, 1776.

Below are the main messages of the declaration of independence.

(1) God made all men equal and gave them the rights of life, liberty, and the pursuit of happiness.

(2) The main business of government is to protect these rights.

(3) If a government tries to withhold these rights, the people are free to revolt and to set up another government.

Learn more about declaration of independence here

https://brainly.com/question/9515546

#SPJ1

Assessing your fitness level is important because it help in tracking your progress and determine if you are making improvements. Regular assessments can help you identify areas where you may need to make adjustments to your fitness routine to achieve your goals. By assessing fitness level, you can identify areas where you may be weaker or less flexible. This information can help you design a fitness routine that addresses these areas and reduces our risk of injury.

Regular physical activity and exercise can improve overall health and reduce the risk of chronic diseases such as heart disease, diabetes, and obesity. By understanding your fitness level, you can design an exercise routine that helps you achieve optimal health and wellness.

Answer:

Sound travel faster through the medium of solid.

The dog starts from rest and has a speed of 2.10 m/s at the bottom. The height of the slope will be 0.225 m

Friction is a type of force that resists or prevents the relative motion of two physical objects when their surfaces come in contact.

The friction force prevents any two surfaces of objects from easily sliding over each other or slipping across one another. It depends upon the force applied to the object.

As there is almost zero friction between the total potential energy height is equal to the kinetic energy

m*g*h = 1/2* m*v²

Where m is the mass of the dog

g is the acceleration due to gravity,h is the height of the slope

v is the velocity of the sliding dog

g*h = 1/2* v²

9.81*h = 0.5* 2.1²

           =0.225 m

The height of the slope would be 0.225 m.        

Learn more about friction from here

https://brainly.com/question/24186853

#SPJ2

Transmission coefficients are used in physics and electrical engineering when considering wave propagation in discontinuous media. The snells law is n₁sinθ1 = n₂sinθ2

The transmission coefficient describes the amplitude intensity or total power of the transmitted wave relative to the incident wave. The transmission coefficient is defined as the ratio of the transmitted particle flux to the incident particle flux and depends on the incident energy.

The sum of the reflected and transmitted energy must equal the total incident energy, so the transmission coefficient is calculated simply by subtracting the reflection coefficient. The ratio of the reflected wave amplitude to the incident wave amplitude is called the reflection coefficient.

Learn more about The transmission coefficients here:- https://brainly.com/question/9323897

#SPJ4

Answer:

C

Explanation:

C is correct

Ok!

151617

Answer:

Fundamental quantities are quantities that were created to measure a object/substance which are the basis on which derived quantities are formed, where as derived quantities are created by extracting variables from the fundamental quantities.

The 99% confidence interval for the average maximum HP for the experimental engine is (610.12, 689.88).

To calculate the confidence interval for the experimental engines' average maximum HP, we can use the following formula:

To find the z-score for α=0.01, we can refer to a standard normal distribution table or use a calculator. The z-score is approximately 2.58.

Substituting the given values into the formula, we get:

CI = 650 ± 2.58*(60/√25) CI = 650 ± 30.96

Rounding to two decimal places, the confidence interval for the experimental engines' average maximum HP is:

CI = [619.04 HP, 680.96 HP]

Therefore, we can say with 99% confidence that the true average maximum HP for the experimental engines falls between 619.04 HP and 680.96 HP. Thus, we can conclude that the experimental engines' average maximum HP is likely to be within this range. However, note that this range does not include the manufacturer's claimed maximum HP of 630 HP, which may indicate that the engines are performing below expectations.

for more such questions on engine

https://brainly.com/question/28206778

#SPJ8

The earthquake would occur 13 minutes before 10:05 a.m. which will be at 9.52 am.

The p-waves travel with a constant velocity of 7 km/s

The time can be calculated by using the formula

t = d / v

where

T1 =  10:05 a.m

d is the distance they take to travel from the epicenter

v is the speed of the p-waves

On average, the speed of p-waves is

v = 7 km/s

d = 5600 km (given)

Substituting the values in the formula;

t = d / v

t = 5600 ÷ 7

t = 800 seconds

Converting into minutes,

t = 800 ÷ 60

t = 13.3

≈ 13 mins

T1 -  13 mins = T2

10:05 - 13 mins = 9.52 am

It means the earthquake occurred prior 13 minutes, that is at 9.52 am.

Therefore, the earthquake occurred at 9.52 am.

Learn more about earthquakes from the given link.

https://brainly.com/question/25843505

Answer:

1:54

Explanation:

The torque on the loop increases by a factor of 16.

option D.

The torque on a wire loop in a magnetic field is given by the equation:

τ = NIABsinθ

Where;

If the radius of the wire is doubled, then the area of the loop becomes four times larger.

Also, if the current flowing through the wire is quadrupled, then the torque becomes four times larger.

The torque on the loop increases by a factor of 4 x 4 = 16.

Learn more about torque here: https://brainly.com/question/14839816

#SPJ1

The period of Jupiter is known to be 11.9 years then the average distance of Jupiter to the Sun is given to be  5.21 AU.

Kepler's laws of planetary motion :

According to this law, the semi-major axes of the planets' orbits are directly proportional to the squares of the planets' orbital periods.

period of the Jupiter = 11.9 years

radius of the earth = 1 AU

orbital period of the earth = 1 year

According to the Kepler's 3rd law of planetary motion :

T² ∝ R³

T² = k R³

k = T²/ R³

\(k = \frac{T^2_j}{R^3_j} = \frac{T^2_e}{R^3_e}\)

T² /(R)³ = (1)² /(1)³

Rj  =  \(T^{\frac{2}{3}}\)

T = 5.21 AU

The period of Jupiter is known to be 11.9 years then the average distance of Jupiter to the Sun is given to be  5.21 AU.

To know more about  Kepler's law:

brainly.com/question/1608361

#SPJ1

The vector with a magnitude of 5 and in the direction of the vector 4i - 3j + k is approximately (20/√26)i + (-15/√26)j + (5/√26)k.

The given vector can be normalized before being multiplied by the desired magnitude. This is how to locate the vector:

The vector that has been provided should be normalized by dividing each of its components by its magnitude. The Pythagorean theorem can be used to determine the magnitude of the vector 4i - 3j + k:

Magnitude = √(4² + (-3)² + 1²) = √(16 + 9 + 1) = √26

Normalize the vector by dividing each component by the magnitude:

Normalized vector = (4/√26)i + (-3/√26)j + (1/√26)k

Multiply the normalized vector by the desired magnitude:

To obtain a vector with a magnitude of 5, multiply each component of the normalized vector by 5:

Desired vector = 5 * ((4/√26)i + (-3/√26)j + (1/√26)k)

Simplifying the expression gives:

Desired vector ≈ (20/√26)i + (-15/√26)j + (5/√26)k

So, the vector with a magnitude of 5 and in the direction of the vector 4i - 3j + k is approximately (20/√26)i + (-15/√26)j + (5/√26)k.

Learn more about Pythagorean theorem here : brainly.com/question/28981380

#SPJ1

Here are five potential-kinetic energy conversions that could be shown in the construction of a device: Pendulum, Roller Coaster, Wind-up Toy, Elastic Slingshot, Windmill.

Pendulum: A pendulum consists of a weight attached to a string or rod, suspended from a fixed point. When the weight is lifted to a certain height, it possesses gravitational potential energy.

As the weight is released, it swings back and forth, converting the potential energy into kinetic energy. At the highest point of each swing, the weight briefly comes to a stop and has maximum potential energy, which is then converted back to kinetic energy as it swings downward.

Roller Coaster: In a roller coaster, potential-kinetic energy conversions occur throughout the ride. When the coaster is pulled up to the top of the first hill, it gains gravitational potential energy.

As the coaster descends, the potential energy is converted into kinetic energy, resulting in a thrilling and high-speed ride. Subsequent hills and loops continue to convert potential energy into kinetic energy and vice versa as the coaster moves along the track.

Wind-up Toy: Wind-up toys typically have a spring mechanism inside. When the toy is wound up, potential energy is stored in the wound-up spring. As the spring unwinds, it transfers its potential energy into kinetic energy, causing the toy to move or perform actions. The kinetic energy gradually decreases as the spring fully unwinds.

Elastic Slingshot: With an elastic slingshot, potential-kinetic energy conversions are evident when the slingshot is stretched. As the user pulls back on the elastic band, potential energy is stored.

Windmill: Windmills harness the kinetic energy of the wind and convert it into other forms of energy. As the wind blows, it imparts kinetic energy to the blades of the windmill. The rotating blades then transfer this kinetic energy into mechanical energy, which can be used for various purposes such as grinding grains or generating electricity.

For more such questions on Pendulum visit:

https://brainly.com/question/27187715

#SPJ8

This question involves the concepts of density and mass.

The mass of water, displaced is "B. 20 g".

First, we will find out the volume of the woodblock by using the density of wood:

\(\rho_{wood} =\frac{m}{V}\)

where,

Therefore,

\(1\ g/cm^3 = \frac{20\ g}{V}\\\\V=\frac{20\ g}{1\ g/cm^3}\)

V = 20 cm³

Now, this is the same volume as the volume of water displaced by this block of wood. Hence, using the density of water, w can find the mass of water displaced:

\(\rho_{water}=\frac{m}{V}\\\\\rho_{water}(V)=m\\m= (1\ g/cm^3)(20\ cm^3)\)

m = 20 g

Learn more about density here:

https://brainly.com/question/952755

The word or phrase that should be emphasized in the given step to convey order is "Immediately after you pop." Hence, option B  is correct

The phrase "Immediately after you pop" indicates the precise timing for the next step, which is to drag the front foot up and jump forward. It is important to follow this sequence of actions in order to execute the trick correctly.

By emphasizing "Immediately after you pop," the reader or listener will understand that this is a crucial step that should not be delayed or performed out of order. This will help them focus on the timing and make sure they do not miss this important step.

While the other phrases are also important, emphasizing "Immediately after you pop" will ensure that the reader or listener understands the correct sequence of actions and is able to execute the trick properly.

Correct answer is Option B) Immediately after you pop.
for more questions on word
https://brainly.com/question/29287094
#SPJ11

Answer:

The total amount of energy, kinetic plus potential, remains the same.

Explanation:

Answer:

126 mWb

Explanation:

Given that:

length (L) = 50 cm = 0.5 m, radius (r) = 5 cm = 0.05 m, current (I) = 10 A, number of turns (N) = 800 turns.

We assume that the magnetic field in the solenoid is constant.

The magnetic flux is given as:

\(\phi_m=NBAcos(\theta)\\Where\ B\ is\ the\ magnetic\ field\ density,A\ is \ the\ area.\\But\ B =\mu_onI.\ n \ is\ the\ number\ of\ turns\ per\ unit \ length=N/L\\Therefore,B=\frac{\mu_oNI}{L} \\substituting\ the\ value\ of\ B\ in\ the\ equation: \\\phi_m=\frac{NAcos(\theta)*\mu_oNI}{L} .\ But \ \theta=0,cos(\theta)=1\ and\ A=\pi r^2\\ \phi_m=\frac{N^2\pi r^2\mu_oI}{L} \\Substituting\ values:\\\phi_m=\frac{800^2*(\pi*0.05^2)*(4\pi*10^{-7})*10}{0.5}=0.126\ Wb=126\ mWb\)

The rumble feature on a video game controller is driven that turns electrical energy into mechanical energy. This device is best referred to as a motor.

An electric motor converts electrical energy into mechanical energy.

Thus, the option (D) is correct.

A parallel circuit is an electrical circuit with more than one current path and all circuit components are connected between the same two sets of electrically common points. The current supplied by the source in a parallel circuit is equal to the sum of all branch currents in the circuit.

For such more question on parallel circuit

https://brainly.com/question/19929102

#SPJ8