What jobs use density?

Answer:

A chemical change occurred, so even if Cash heats it, the white solid will remain

Explanation:

There are two types of changes that occur in Chemistry viz; physical change and chemical change. Physical changes are those changes do not involve any change in the chemical composition of the substances involved while a chemical change involves a change in chemical composition.

In a chemical change, there are characteristics signs such as formation of gaseous bubbles, solid precipitates etc. as the information in this question depicts. According to this question, Cash mixes two clear liquids together which results in the formation of bubbles and a white solid that settles at the bottom. Hence, THIS REPRESENTS A CHEMICAL CHANGE

Most chemical changes are usually irreversible i.e. they don't return to their original form. Hence, even if Cash heats it, the white solid will remain.

Answer:

A chemical change occurred, so even if Cash heats it, the white solid will remain

The frequency of the object's motion is 1/19 Hz

Given that an object moves around a circle of radius 10 meters in 19 seconds.

We need to find the frequency of the object's motion.

Formula for the frequency of the object's motion

Frequency of the object's motion is defined as the number of cycles completed by an object in one second. It is denoted by "f" and measured in hertz (Hz).

f = 1/Twhere,T is the time taken by the object to complete one cycle.

We have the radius of the circle, not the diameter or circumference of the circle.

Therefore, we need to find the circumference of the circle using the radius of the circle.

Circumference of the circle = 2πr= 2 x π x 10 = 20π

The object completes one full cycle to come back to its original position after it moves around the circle.

So, the time taken by the object to complete one cycle (T) = 19 seconds

Therefore, the frequency of the object's motion,f = 1/T= 1/19 Hz

Let us know more about motion : https://brainly.com/question/12640444.

#SPJ11

Answer:

C

Explanation:

pgghikjbvxxasdgjkllpouyrwqscbnnkudyi

Answer:

the beaker contains 342.3 g (1 mole) of sucrose. this quantity of sucrose contains 6.02 × 1023 (avogandro's number) of sucrose molecules

Explanation:

i remember it

A brass axle with a volume of 0.318 cm weighs 2.7g.

Mass in physics is a quantitative representation of inertia, a fundamental property of all matter. Essentially, it relates to a substance's resistance to shifting its direction or speed in reaction to the application of a force.

You would use a balance as the tool to determine mass. The classic balance depicted here could aid in your understanding of what mass is, though you might also use a measuring cylinder or a triple beam balance in the lab to measure mass.

To know more about Mass visit:

brainly.com/question/17067547

#SPJ4

Answer:

1250

Explanation:

Answer:

Highly doubt something that requires great focus and mental strength exists

Explanation:

It is given that,

Length of the poster, l = 0.95 m

Breadth of the poster, b = 1 m

The poster is in the shape of rectangle. For a rectangular shape, perimeter is equal to :

P = 2(l+b)

P=2(0.95+1)

P=3.9 m

(b) One digits, P = 4 m

(c) Two digits, P = 3.9 m

(d) Three digits, P = 3.90 m

The characteristic of X-rays make them useful for creating images of the skeletons of humans and other animals. X-rays are absorbed by denser tissues. Hence option 1 is correct.

Skeleton system is defined as the skeleton that makes up the human body. At birth, it has about 270 bones; at adulthood, after certain bones have fused together, it has about 206 bones. It is made up of tendons, ligaments, cartilage, and bones that link the two.

The density of the substance that X-ray beams pass through as they move through your body affects how much of it is absorbed. Dense materials like bone and metal show white on X-rays. The air in your lungs seems to be black.

Thus, the characteristic of X-rays make them useful for creating images of the skeletons of humans and other animals. X-rays are absorbed by denser tissues. Hence option 1 is correct.

To learn more about skeleton system, refer to the link below:

https://brainly.com/question/1628011

#SPJ1

a 75 kg person can jump from a maximum height of approximately 5.1 meters and land rigidly upright on both feet without breaking their legs, assuming that all energy is absorbed by the leg bones in a rigid landing.

We can use the principle of conservation of energy to determine the maximum height from which a 75 kg person can jump and land rigidly upright on both feet without breaking their legs. At the maximum height, the person will have a potential energy of: PE = mgh.

When the person lands rigidly on both feet, all of their kinetic energy is absorbed by their leg bones. Therefore, we can set the potential energy equal to the energy required to break the leg bones:

PE = W, where W is the work done to break the leg bones.

The work done to break the leg bones depends on the material properties of the bones and the force applied. For the purposes of this calculation, we can use an average value of 4,000 Joules for the work required to break both leg bones.

Setting these two equations equal to each other, we can solve for the maximum height: mgh = W

h = W/m g

h = 4000 J / (75 kg x 9.81 m/s^2)

h ≈ 5.1 meters.

Learn more about kinetic energy here:

https://brainly.com/question/26472013

#SPJ11

\

Answer:

The simplest way to put it is that friction is a force in which there is a resistance between material elements when they slide against each other. There is no completely accurate answer as to why friction occurs, but scientists believe that it is because of tiny bumps on the surface of a material.

Due to the relative speed of the spacecraft with regard to the observer, information sent back from the spacecraft at a rate of 1400 kHz is received at a lower rate. The rate at which information is received is reduced due to time dilation, which is the slowing of time perceived by a moving object as seen by a stationary observer. The greater the temporal dilation, the faster the item moves.

Time dilation occurs in this example because the spacecraft is travelling at 0.95 times the speed of light. This means that time appears to move slower on the spacecraft than it does to a stationary observer. As a result, the frequency of information received from the spacecraft is likewise reduced. Because of this consequence, the rate at which we get information will be lower than 1400 kHz.

Finally, the rate at which information is received is affected by the speed of a spacecraft relative to an observer. When a spacecraft travels at a substantial fraction of the speed of light, time dilation causes the spacecraft to receive information at a decreased rate.

For more such questions speed.

https://brainly.com/question/28224010#

#SPJ11

Introduction:

The speed of light is a fundamental constant in physics and is considered to be the highest speed at which information can travel. It is the speed at which electromagnetic radiation (including light) propagates through a vacuum. In this scenario, a spacecraft is traveling at a speed close to the speed of light, sending back information at a certain frequency.

Explanation:

According to the theory of special relativity, objects moving at high speeds experience time dilation, which means that time appears to pass more slowly for the object relative to an observer at rest. The same goes for the frequency of electromagnetic radiation. When the spacecraft is traveling at a high speed, the frequency of the electromagnetic radiation it emits will appear to be lower to an observer at rest.

This effect is known as the Doppler shift, and it affects both the frequency and wavelength of the emitted radiation. The rate at which we receive the information from the spacecraft is given by the formula:

f' = f * (√(1 - v^2/c^2))

Where f is the frequency of the radiation as emitted by the spacecraft, v is the speed of the spacecraft relative to the observer, and c is the speed of light.

In this scenario, the spacecraft is traveling at a speed of 0.95c, so v = 0.95c. Plugging these values into the formula gives us:

f' = 1400 kHz * (√(1 - (0.95c)^2/c^2)) = 1400 kHz * (√(1 - 0.9025)) = 1400 kHz * (√(0.0975)) = 1400 kHz * 0.3117 = 436.8 kHz

So, we receive the information from the spacecraft at a rate of 436.8 kHz.

Conclusion:

This example illustrates the effect of time dilation and the Doppler shift on the frequency of electromagnetic radiation as seen by an observer at rest. It shows that when a spacecraft travels at high speeds, the frequency of the radiation it emits appears to be lower to an observer at rest, due to the effect of time dilation on the frequency.

Here you can learn more about electromagnetic radiation

https://brainly.com/question/10759891#

#SPJ11

Light is a form of B) electromagnetic radiation. The different wavelengths of electromagnetic radiation determine their properties, such as their ability to penetrate different materials or interact with different types of matter.

Light is a form of electromagnetic radiation. Electromagnetic radiation is a type of energy that travels through space and includes a wide range of wavelengths, including radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays

Visible light is the range of electromagnetic radiation that can be detected by the human eye and includes the colors of the rainbow.

To know more about electromagnetic radiation visit:-

https://brainly.com/question/10759891

#SPJ11

Answer:

The answer is below

Explanation:

Charlee's law states that the volume of a gas is directly proportion to the temperature of the gas at constant pressure. That is:

V = kT, where V = volume and T = temperature, k = constant. Therefore:

V / T = k

\(\frac{V_1}{T_1}=\frac{V_2}{T_2}\)

Given that: \(V_1=3\ m^3, T_1=20^oC=(20 + 273)K=293\ k,T_2=60^oC=(60 + 273)K=333\ k.\\\\\frac{V_1}{T_1}=\frac{V_2}{T_2}\\\\\frac{3}{293}=\frac{V_2}{333} \\\\V_2=\frac{3}{293}*333\\\\V_2=3.41\ m^3\\\)

The new volume is 3.41 m³. That is it expands by 0.41 m³

Answer:

0.02484

Explanation:

Trust me bro

While the flashlight light has no effect, the UV source's light discharges the electroscope.

According to Planck's formula, the energy of the particles that make up a beam of light is connected to their frequencies. The photons and atoms collide when that beam strikes a metal. The photoelectric effect is created by a collision when a photon's frequency is high enough to remove an electron.

One electron interacts with each photon. The incident photon's energy is employed to both liberate the surface-bound electrons and give the expelled electrons energy.

Because it offers insights into the properties of solids as well as the properties of atoms and molecules, the photoelectric effect is extensively researched in the fields of quantum chemistry, condensed matter physics, and solid-state chemistry.

To know more about the photoelectric effect, visit: https://brainly.com/question/2028272

#SPJ4

The tension is in each rope will be 230.535 N .

Tension also known as tensile force is the force developed in a rope, string, or cable when it is stretched by an applied force.

Mass of the gymnast = m = 47 kg

Acceleration due to gravity = g = 9.81 \(m/s^{2}\)

T = m*g

T = 47 * 9.81

T = 461.07 N

Since there are two parallel ropes attached to the ceiling, therefore tension will be equally divided into each rope respectively.

Tension in each rope = t

t = \(\frac{T}{2}\)

t = \(\frac{461.07}{2}\)

t = 230.535 N

The tension in each rope will be 230.535 N, when both the ropes are attached to the ceiling directly above the gymnast.

To know more about  tension,

https://brainly.com/question/14020001

#SPJ1

Out of 150 approved mortgage applications, a random sample may have variable or interest-only mortgages.

we are given that a random sample of 150 approved mortgage applications is either variable or interest-only mortgages. A variable mortgage, also known as an adjustable-rate mortgage (ARM), is a type of mortgage in which the interest rate fluctuates based on market conditions. An interest-only mortgage is a type of mortgage in which the borrower only pays interest on the loan for a certain period of time before beginning to make principal payments.To determine what percentage of the sample is variable or interest-only mortgages, we would need more information on the breakdown of the sample. However, we know that these are two different types of mortgages that borrowers can choose from when applying for a mortgage.

A home loan application is a report submitted to a bank when you apply for a home loan to buy land. The application is extensive and includes information about the borrower's employment history, financial situation, and the property being considered for purchase, among other things.

Know more about mortgage applications, here:

https://brainly.com/question/28222316

#SPJ11

Answer:

Explanation:

Three screens are placed one behind the other and light falls on all of them from a torch . In this case a mirror can be only the last screen . In case of first or second screen being a mirror , light would not have reached the last screen because the nature of mirror is to reflect the light back.

Hence , the only possibility is that , the last screen is mirror.

The product of charges and the inverse square of distance between the net force operating on 67.4N determine the attracted force or acting in a straight path between two electric charges.

The definition of force in physics is: The push and pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body.

The word "force" has a specific meaning in science. At this level, calling a force a push or even a pull is entirely appropriate. A force does not represent something an object "has in it" or that it "contains." One thing experiences a force from another. There is no distinction between living and non-living things in the concept of a force.

To know more about force visit:

https://brainly.com/question/13191643

#SPJ1

The sensor that would be most useful for helping a drone remain level as it flies is the Gyro sensor.

A Gyro sensor, also known as a gyroscope, measures the angular velocity or rate of rotation around an axis. This is particularly useful for drones as it can detect any changes in orientation and help the drone maintain its level flight. By measuring the rate of rotation around each of its axes, a Gyro sensor can detect any changes in the drone's orientation and provide feedback to the flight controller to adjust the drone's motors accordingly.

Accelerometers can also be used in drones to detect changes in acceleration and tilt, but they are not as effective as gyroscopes in detecting changes in orientation. Magnetometers are used for detecting magnetic fields and can be used for navigation purposes, but they are not as useful for maintaining level flight. Aero sensors are not commonly used in drones and are more useful for measuring atmospheric conditions.

Visit to know more about Drone:-

brainly.com/question/31654898

#SPJ11

Answer:

the matter is made into paper

Explanation:

The angular momentum of the mother around the center of the carousel is 263.84 kg·m²/s.

Angular momentum is a measure of rotation and is defined as the product of the moment of inertia and angular velocity. In this case, we need to calculate the angular momentum of the mother around the center of the carousel.

The angular momentum formula is:

L = Iω

where L is angular momentum, I is the moment of inertia and ω is angular velocity.

To calculate the moment of inertia, we need to know the mass of the object and its distance from the axis of rotation. The moment of inertia of a point of mass rotated along a distance r about an axis is given by:

I = mr²

where m is the mass and r is the distance from the axis of rotation.

In this case, the mass of the mother is 57 kg and the distance from the center of the carousel is 2.8 m. Therefore, the mother's moment of inertia is:

I = (57 kg) × (2.

8 m)² = 439.04 kg m²

The given angular velocity of 4.6 m/s.

Now L = Iω:

L = (439.04 kg m²) × (4.

6 m/s) = 2018.144 kg·m²/s ≈ 2018.14 kg·m²/s

Therefore, the angular momentum of the mother around the center of the carousel is approximately 2018.14 kg ·m²/s.

The angular momentum of the mom around the center of the carousel is 263.84 kg·m²/s.

To learn more about momentum, visit    

https://brainly.com/question/29512279

#SPJ11

Answer:

Scientific theories are explanations of some aspect of the natural world based on repeated observations.

Hope this helps!!!!

Answer:

The way that scientists use the word 'theory' is a little different than how it is commonly used in the lay public," said Jaime Tanner, a professor of biology at Marlboro College. "Most people use the word 'theory' to mean an idea or hunch that someone has, but in science the word 'theory' refers to the way that we interpret facts.

Explanation:

The prove of  Angle XYZ- Angle NYM is given below:

Note that from the image given;

Since ∠XYZ is said to be congruent to ∠NYM it can be proven by the use of the reflexive property.

The reflexive property is one that informs that any shape is regarded congruent to itself.

Since ∠NYM has a different way to call ∠XYZ that uses a different vertexes, but the sides are made up of the two angles which are said to be the same.

Therefore , ∠XYZ ≡ ∠NYM are proved by the reflexive property.

Since ΔXYZ is the same with Δ NYM, it can be proven by the AA (angle-angle) similarity theorem.

We have 2 angles Δ XYZ and Δ NYM:

Note that ∠YXZ ≡ ∠YNM

              ∠XYZ ≡ ∠NYM

So,  ΔXYZ is said to be the same to ΔNYM and it is proven by the AA similarity theorem.

Therefore, The prove of  Angle XYZ- Angle NYM is given below:

Learn more about triangles from

https://brainly.com/question/10468052

#SPJ1

Answer:

1. parrael

2. corresponding angles theorem

3. NYM

4. AA

Explanation:

just took it

Answer:

\(v = 23.88m/s\)

Explanation:

Given

\(r = 225m\)

\(\theta = 14.5^\circ\)

Required: Determine the speed of the train

To solve this question, we apply the concept of tension.

Let the tension on the cord be T.

Tension is calculated as:

\(T = mg\)

So, the tensions acting on the system are:

\(T*sin(\theta) = \frac{mv^2}{r}\) and

\(T*cos(\theta) = mg\)

Divide the equations by one another

\(\frac{T*sin(\theta)}{T * cos(\theta)} = \frac{mv^2}{mgr}\)

\(\frac{sin(\theta)}{cos(\theta)} = \frac{v^2}{gr}\)

\(tan(\theta) = \frac{v^2}{gr}\)

Make v^2 the subject

\(v^2 = grtan(\theta)\)

Take the square root of both sides

\(v = \sqrt{grtan(\theta)\)

Substitute values for g (9.8), r 225 and \(\theta\) (14.5)

\(v = \sqrt{9.8 * 225 * tan(14.5^\circ)}\)

\(v = \sqrt{9.8 * 225 * 0.2586}\)

\(v = \sqrt{570.213}\)

\(v = 23.88m/s\)

Hence, the trains' velocity is approximately 23.88m/s

Wavelength and frequency are inversely proportional to each other. as wavelength increases, the frequency will decrease.

Frequency is defined as the number of oscillations of a wave per unit of time. The SI unit of frequency is Hertz(H).

Wavelength is defined as the distance between two adjacent points also known as crests. The two points should be in phase. It is measured in meters and it is denoted by λ.

The relation between frequency and wavelength is inverse.

                                          F = 1/λ

If the frequency increases, the wavelength will decrease and vice versa.

If you need to learn more about wavelength and frequency, click here

https://brainly.com/question/18651058?referrer=searchResults

#SPJ4

Frequency is inversely proportional to wavelength. As wavelength increases, the frequency will decrease

Wavelength is inversely proportional to frequency, meaning that as one falls, the other rises, and vice versa. A high-frequency wave has a short wavelength and vice versa. The wavelength is the distance between one point and the same point in the next wave cycle. The frequency is defined as the number of times a point on a wave travels through another point in a given period.

The space between two neighboring crests of a wave is defined as its wavelength and in meters. The quantity of wavelengths that move through a specified point in one second is defined as the frequency.

To learn more about wavelengths and frequencies: brainly.com/question/12563701

#SPj4

If a document needs to be passed on to another person for assignment, the proper way to treat it is to Delegate it (option C).

Delegation is an integral aspect of managing teams effectively. It requires assigning responsibilities and authorities concerning specific activities such that leaders can focus more on crucial tasks while building their team's capacity simultaneously.

While passing on assignment documents, it's preferable that they are delegated rather than passed over through other means of communication channels available widely today.

Moreover, providing all necessary information along with required resources helps ensure efficient completion of assigned tasks by delegates involved in completing given workloads respectively allocated by respective leads from core teams within organizations across various sectors worldwide today!

Learn about delegation here https://brainly.com/question/27823193

#SPJ1

A zero net force acts on the ball at the highest point of its trajectory and at the moment it momentarily stops before changing direction.

When you throw a basketball straight up and catch it, there are two instances when a zero net force acts on the ball. Firstly, at the highest point of its trajectory, the ball momentarily comes to a stop before starting its descent. At this point, the force due to gravity acting downwards is balanced by an equal but opposite force exerted by your hand. Secondly, when the ball reaches its maximum height and starts to fall back down, it momentarily stops before changing direction. Again, at this moment, the upward force exerted by your hand is equal to the force of gravity acting downwards, resulting in a zero net force on the ball.

Learn more about zero net force

brainly.com/question/31495238

#SPJ11

When one speaker is driven at 569 Hz and the other at 559 Hz, the beat frequency is 10 Hz and the average beat frequency is 564 Hz.

The beat frequency is equal to the difference between the two frequencies.

Beat frequency = \(569 Hz - 559 Hz = 10 Hz\)

So the beat frequency is 10 Hz.

The average frequency is equal to the sum of the two frequencies divided by two.

The average frequency is calculated as follows

Average frequency = \((569 Hz + 559 Hz) / 2 = 564 Hz\)

So the average frequency is 564 Hz.

Therefore, the beat frequency is 10 Hz while the average frequency is 564 Hz when one speaker is driven at 569 Hz and the other at 559 Hz.

To learn more about 'beat frequency':

https://brainly.in/question/165884

#SPJ11