true/false. the electromotive force has units of newtons (n).

Answer: Parfocal will be the answer.

Explanation:

The amount of work required to haul up the rope is 30.72 Nm. This can be calculated by multiplying the weight of the rope (0.624 N/m) by the length of the rope (50 m).

The work required to haul up the 50 m length of rope weighing 0.624 N/m is 30.72 Nm. This can be found by using the equation Work = Force x Distance.

The force is the weight of the rope, which is 0.624 N/m, and the distance is the length of the rope, which is 50 m. When multiplied together, the resulting work is 30.72 Nm.

Hauling the rope up will therefore require an expenditure of energy equal to 30.72 Nm.

Learn more about physics: https://brainly.com/question/25959744

#SPJ4

The correct answer is Option(C). The proper time between two events is measured by clocks at rest in a reference frame in which the two events are separated by the distance a light signal can travel during the time interval.

The concept of proper time is a fundamental concept in special relativity. It refers to the time interval measured by an observer who is at rest relative to the events being measured. According to special relativity, the passage of time can be affected by relative motion and gravitational fields.

The proper time between two events is independent of the reference frame from which it is measured. It is a fundamental property of the events themselves. In order to measure the proper time between two events, one must use clocks that are at rest relative to the events being measured.

Option (C)  states that the two events are separated by the distance a light signal can travel during the time interval. This is the correct choice because the speed of light is a fundamental constant in special relativity and is the maximum speed at which information can propagate. Using the distance traveled by light during a time interval ensures that the measurement of proper time is consistent with the principles of special relativity.

To know more about reference frame:

https://brainly.com/question/30078703

#SPJ4

--The question is incomplete, the complete question is:

"The proper time between two events is measured by clocks at rest in a reference frame in which the two events:  (A). occur at the same time  (B). occur at the same coordinates  (C). are separated by the distance a light signal can travel during the time interval  (D). occur in Boston  E. satisfy none of the above"--

The smallest sound power output of the airplane motor that can be listened to on the ground is  6.73 × 10^-6 W which has the lowest-intensity sound that is still loud and has an intensity of  10^-12 W/m^2.

The intensity of sound =  10^-12 W/m^2

Altitude =  6,500 m.

Calculate the smallest sound energy output of an aircraft motor that can be heard on the ground is done by using the formula:

I = P/(4πr^2)

Pythagoras' theorem is used for calculating the distance

d = (\(\sqrt{6500^2 + R^2}\))

I = 10^-12 W/m^2

d = \(\sqrt{6500^2 + R^2}\)

d = 6500 m

P/(4πd^2) = I

\(P/(4π(6500)^2) = 10^-12 W/m^2\)

\(P = 4π(6500)^2 × 10^-12 W\)

P = 6.73 × 10^-6 W

Therefore, we can conclude that the smallest sound power output of the aircraft engine that can be heard on the ground is  6.73 × 10^-6 W.

To learn more about the Intensity of sound

https://brainly.com/question/12937864

#SPJ4

What happens if you launch from a planet with so much angular velocity that the centrifugal force becomes significantly greater than the gravitational force is that you leave the planet's gravitational field which is therefore denoted as option D.

This is referred to as a model which is used to explain the influences that a massive body extends into the space around itself, producing a force on another massive body.

If you launch from a planet with so much angular velocity that the centrifugal force becomes significantly greater than the gravitational force is that you leave the planet's gravitational field and there is no gravitational force felt such as that in the moon etc and is therefore the reason why it was chosen as the correct choice.

Read more about Gravitational field here https://brainly.com/question/28437652

#SPJ1

To fully understand and compare the motion described by vectors A and B, it is important to consider both their magnitudes (speeds) and directions.

We can provide you with some general information regarding velocity vectors A and B and why they may not be appropriate for describing speed alone.

Velocity is a vector quantity that includes both magnitude (speed) and direction. In order to accurately describe motion, it is essential to consider both aspects. If a student creates two velocity vectors, A and B, it implies that they are representing both magnitude and direction.

If we focus solely on speed, which is the scalar quantity representing the magnitude of velocity, then comparing velocity vectors A and B may not be appropriate. Speed is the absolute value of velocity and does not take direction into account. It would not provide information about the direction of motion, which is crucial for a complete understanding of an object's movement.

For example, if vector A has a speed of 10 m/s and vector B has a speed of 10 m/s as well, we cannot conclude that the motion described by both vectors is the same. They could have entirely different directions, leading to distinct paths or trajectories. Vector A could be representing motion to the east, while vector B could represent motion to the west.

Therefore, to fully understand and compare the motion described by vectors A and B, it is important to consider both their magnitudes (speeds) and directions.

For more such questions on Vectors

https://brainly.com/question/30394406

#SPJ11

Answer:

Explanation:

Work = Force times displacement. Therefore,

W = 3150(75.5) so

W = 238000 N*m

So, the value of work that he had done is 900 J.

Hi ! Here I will discuss about the effort to raise an object. Previously, when we raised an object, the energy that we put out had to be equal to the change in potential energyHi ! Here I will discuss about the effort to raise an object. Previously, when we raised an object, the energy that we put out had to be equal to the change in potential energy that happened. This is because, the higher the height of an object, the greater value of potential energy. The equation that applies is as follows :

\( \sf{\bold{W = \Delta PE}} \)

\( \boxed{\sf{\bold{W = m \times g \times \Delta h}}} \) ... (i)

\( \boxed{\sf{\bold{W = m \times g \times (h_2 - h_1)}}} \) ... (ii)

With the following condition :

However, because the value of w (weight of the object) is already mass multiplied by gravity (w = m × g). So :

\( \sf{W = m \times g \times \Delta h} \)

\( \boxed{\sf{\bold{W = w \times \Delta h)}}} \)

With the following condition :

We know that :

What was asked :

Step by step :

\( \sf{W = w \times \Delta h} \)

\( \sf{W = 600 \times 1.5} \)

\( \boxed{\sf{W = 900 \: J}} \)

So, the value of work that he had done is 900 J.

Answer:

Filtration is a method for separating an insoluble solid from a liquid. When a mixture of sand and water is filtered: the sand stays behind in the filter paper (it becomes the residue ) the water passes through the filter paper (it becomes the filtrate )

Explanation:

Listo!

The volume of a sphere with radius r is V = (4/3)πr³, and the surface area of the sphere is S = 4πr². T

Given a sphere with radius r, the  answer is: The volume of the sphere is V = (4/3)πr³.

The surface area of the sphere is S = 4πr².

The volume of a sphere is the amount of space inside a sphere. To determine the volume of a sphere, we use the formula:V = (4/3)πr³Where "r" is the radius of the sphere.

So, the volume of the sphere is V = (4/3)πr³.

The surface area of a sphere is the sum of all of its surface areas. To determine the surface area of a sphere, we use the formula:S = 4πr²Where "r" is the radius of the sphere.

So, the surface area of the sphere is S = 4πr².\

In conclusion, the volume of a sphere with radius r is V = (4/3)πr³, and the surface area of the sphere is S = 4πr². The given sphere is a 3-dimensional object that has a circular boundary. To find the volume and surface area, we have used the above formulas, which involves only the radius "r" of the sphere.

To know more about volume of a sphere visit:

brainly.com/question/21623450

#SPJ11

Answer:

they are machined with shape characteristics which maximize the fatigue life of a metal.

Explanation:

they are highly polished to provide the surface characteristics which enable the best fatigue life.

Answer:420ms^-1

Conserving linear momentum (mv)=(MV)

Answer:

m v^2 / R = G M m / R^2       gravitational attraction = centripetal force

M = v^2 R / G       solving for M

period = 6 h 25 min = (6 * 3600 + 25 * 60) sec = 23,100 sec = T

v = 2 pi R / T

M = 4 pi^2 R^3 / (G T^2)

M = 39.5 * (8.6E7)^3 / (6.67E-11 * 2.31E4^2)

M = 39.5 * 636 / (6.67 * 5.34) * 10^24

M = 7.05 * 10^26 kg

The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N

The gravitaional force between two objects can be obtained by using the following formula:

F = GM₁M₂ / r²

Where

The following data were obtained from he question:

The gravitaional force can be obtained as shown below:

F = GM₁M₂ / r²

F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²

F = 1.63×10³ N

Thus, the gravitational force is 1.63×10³ N

Learn more about gravitational force:

https://brainly.com/question/24299568

#SPJ1

The time taken by the ball to hit the water is 3.22sec if it is dropped from a height of 51 meter .

We have height from which ball is dropped, now we need to find the time. So, we can use newton second equation of motion which states that displacement is equal to summation of the product of initial velocity with time taken plus the half product of acceleration with square of time taken.

S=ut+(1/2)at²

where S is the displacement of the body,

u is defined as the initial velocity of the body,

a is the acceleration due to gravity,

and t is the total time

We have S=51m,u=0m/sec, a=9.8m/sec²,t=?

So, putting the values, we get

=>51=(0×t) + (1/2)×(9.8)×(t)²

=>51=0 + 4.9×(t)²

=>(t)²=51/4.9

=>(t)²=10.40

=>t=√10.40

=>t=3.22sec

Hence, required time taken by ball is 3.22sec.

To know more about time, visit here:

https://brainly.com/question/82806

#SPJ4

Answer:

none of the above or screwdriver

Speeding tickets are not the best punisher for reducing speeding behavior because not everyone perceives tickets as bad .So  option C is correct.

Here are some other reasons why speeding tickets may not be the best punisher for reducing speeding behavior:

To learn more about enforcement visit: https://brainly.com/question/28831464

#SPJ11

Answer:

look in internet u can find online converter and there u will get a rel answer

Explanation:

Answer:

In this case the net force is zero.

According to Newton's third law of motion: For every action, there is an equal and opposite reaction. In this case the net force is zero.

Explanation:

Hope this helps!! :)

An object should be placed at a distance of 22 cm from a converging lens with a focal length of 22 cm to produce an image that is the same distance from the lens as the object.

According to the lens formula, 1/f = 1/v - 1/u, where f is the focal length, v is the image distance, and u is the object distance. In this case, the focal length of the converging lens is given as 22 cm, and we need to find the object distance u.

Since the question states that the image distance is the same as the object distance, we can set v = u. By substituting these values into the lens formula, we get 1/22 = 1/u - 1/u. Simplifying the equation, we have 1/22 = 0. Therefore, there is no real solution for u.

This means that there is no object distance at which the image distance will be equal to the object distance when using a converging lens with a focal length of 22 cm. It is not possible to place the object at a specific distance to achieve this condition.

Learn more about converging lens here:

https://brainly.com/question/29178301

#SPJ11

Potential energy is the energy that an object has based on its position is true .

What is the name for the potential energy created when an item contracts or expands?

Elastic potential energy is the potential energy resulting from an object's form. When a force stretches or compresses an elastic substance, this energy is produced. The potential energy of an item increases with the amount it is compressed or stretched.

Potential energy is a form of accumulated energy that is dependent on the relationship between different system components. When a spring is compressed or expanded, its potential energy increases. If a steel ball is raised above the earth as opposed to falling to the ground, it has more potential energy.

To learn more about potential energy  use :

https://brainly.com/question/14427111

#SPJ1

Answer:

15 units NE

Explanation:

Assuming the coordinate plane is a compass with N being the positive y-axis, we can use the Pythagorean theorem to find the magnitude of the vector. Since the vector is going up by 12 and right by 9 at the same time, it should form a diagonal line, aka the hypotenuse of a triangle. This triangle has both of its leg units as 12, and 9. Pythagorean theorem states that a^2 + b^2 = c^2, that is both of their legs squared is the hypotenuse of the triangle squared. 12^2 + 9^2 = c^2. c = 15. Now that we know the magnitude, let's go back to the quadrants as the compass. Since both units are positive, the vector goes in the positive direction on both sides, which is Quadrant 1. North and East would be the appropriate say for the vector's direction, thus the vector's direction will be 15 units North East.

Answer: B

Explanation: The higher temperature increases the reaction rate but also favors the reverse read on.

The higher temperature increases the reaction rate, but it also favors the reverse read on. So, option B.

The pace at which the products are created from the reactants in a chemical reaction is referred to as the rate of reaction.

Here,

Generally, reactions progress more quickly as the temperature rises.

The average kinetic energy of the reactant molecules will rise with a rise in temperature. The number of molecules having threshold energy rises, increasing the quantity of efficient collisions that actually occur.

Therefore, as the temperature of the reaction is increased, the rate of the reaction increases. But also favors the reverse reaction.

Hence,

The higher temperature increases the reaction rate, but it also favors the reverse read on.

To learn more about rate of reaction, click:

https://brainly.com/question/30546888

#SPJ5

We know, formula of capacitance in parallel plate capacitor is given by :

\(C = \dfrac{\epsilon_o A}{d}\)

Here, \(\epsilon_o = 8.85 \times 10^{-12} \ F.m^{-1}\)

So,

\(A = \dfrac{Cd}{\epsilon_o}\\\\A = \dfrac{1.11 \times 10^{-9}\times 8.89 \times 10^{-7}}{8.85\times 10^{-12}}\\\\A = 1.11 \times 10^{-4}\ m^2 \ or \ 1.11 \ cm^2\)

Hence, this is the required solution.

Answer:

7.09797297 • 10^-7

Explanation:

You just follow the formula:

C = εA/d

ε = 8.85 • 10^-12

A = 8.89 • 10^-7

D = 1.11• 10 ^-9

So:

C = (8.85 • 10^-12)(8.89• 10^-4)/1.11 • 10 ^-9 = 7.09797297 • 10^-7

Good Luck!  :)

Kinetic energy is half of the total energy when displacement is half the amplitude in simple harmonic motion.

In simple harmonic motion, a block attached to a spring undergoes back and forth oscillations on a horizontal frictionless surface.

The total energy of the system is 50.0 J.

When the displacement is half the amplitude, we need to find the kinetic energy of the block.

The amplitude is the maximum displacement from the equilibrium position.

At this point, the block's potential energy is maximum and kinetic energy is zero.

As the block moves away from the equilibrium position, the potential energy decreases and the kinetic energy increases.

When the displacement is half the amplitude, the potential energy is 25.0 J.

Therefore, the kinetic energy must also be 25.0 J, since the total energy of the system remains constant.

For more such questions on Kinetic energy, click on:

https://brainly.com/question/8101588

#SPJ11

In words, the R2 of 0.27 means that 27% of the variability in y (24-hour urinary Na) can be explained by x (estimated 24-hour urinary Na) obtained from casual urine specimens at one point in time.

The INTERSALT Study was designed to investigate the relationship between dietary sodium and blood pressure (hypertension) in populations worldwide.

The study included 10,079 men and women from 52 population samples in 32 countries. One of the goals of the study was to quantify the relationship between 24-hour urinary Na (y) and estimated 24-hour urinary Na (x) obtained from casual urine specimens at one point in time.

The investigators presented a simple linear regression of y on x, separately for men and women. The regression equation for men was: Y = 1.03x + 7.19, with R2 = 0.27, n = 1369.

The coefficient of determination, R2, is a statistical measure that represents the proportion of the variance for a dependent variable (y) that's explained by an independent variable (x) or variables in a regression model.

In this case, the R2 of 0.27 means that 27% of the variability in y (24-hour urinary Na) can be explained by x (estimated 24-hour urinary Na) obtained from casual urine specimens at one point in time. The remaining 73% of the variability in y is due to other factors that are not included in the regression model.

To know more about  linear regression visit:

https://brainly.com/question/32505018

#SPJ11

The center of mass is the point located in an average position concerning the objects' positions and their masses. (a/3;a/3) is the location of the COM.  

The center of masses of a given system of particles or objects is the position under which all external forces are acting. Any uniform force acts on this point.

This position is the average position of all the components of the system concerning their masses. It can be placed in one, two or three dimensions according to the system.

Coordinate X of the center of masses is given by the following formula,

Xcom = Σ(Ximi) / Σmi

This is the adition (Σ) of each particle position on the X-axis (Xi) multiplied by their mass (mi), and the result divided by the summation of all masses -total mass-.

In the same way, coordinate Y of the center of masses is given by the following formula,

Ycom = Σ(Yimi) / Σmi

This is the adition (Σ) of each particle position on the Y-axis (Yi) multiplied by their mass (mi), and the result is divided by the summation of all masses.

The center of masses is located in the position (X, Y).

According to this framework, we can get the coordinates of the center of masses for this bidimensional system. Coordinates can be expressed in meters or centimeters (m or cm).

Data:

     Particle ⇒ (X;Y)

Coordinate X  ⇒  Xcom =  Σ(Ximi) / Σmi

                             Xcom =  (0m) + (0m) +(am) / m +m +m

                             Xcom =  am / 3m

                             Xcom =  a/3

Coordinate Y  ⇒  Ycom =  Σ(Yimi) / Σmi

                             Ycom =  (am) + (0m) +(0m) / m +m +m

                             Ycom =  am / 3m

                             Ycom =  a/3

Coordinates of the center of masses, (X;Y) = (a/3 ; a/3)

(a/3 ; a/3) is the location of the center of mass in the proposed bidimensional system.

You can elarn more about the center of mass at

https://brainly.com/question/8662931

https://brainly.com/question/13123609

The current produced by the voltage of 240 V is 1200 A.

Current is the rate of flow of charge round a circuit.

To calculate the current through the resistance, we use the formula below

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence the current is 1200 A.

Learn more about current here: https://brainly.com/question/24858512

#SPJ1

Addiction takes away our ability to make informed decisions about our own bodies.

Addiction is defined as not having control over doing, taking, or using something to the point where it begins harmful to humans. Addiction is the neurophysiological symptoms engaged in maladaptive behavior providing immediate sensory rewards, despite their harmful consequences.

Addiction is most commonly associated with drugs, gambling, and smoking. Addiction is of two types: substance use disorders (SUD) and behavioral disorders. Addiction is treatable and it is crucial to seek help as soon as possible.

Hence, Addiction takes away our ability to make informed decisions about our own bodies.

To learn more about Addiction:

https://brainly.com/question/27951613

#SPJ1

One statement that is not true is that UV radiation is a type of electromagnetic radiation. It is also a type of ionizing radiation. UV radiation is actually a form of non-ionizing radiation.

UV radiation, or ultraviolet radiation, is a type of electromagnetic radiation that falls between visible light and X-rays on the electromagnetic spectrum. It is often categorized into three types: UVA, UVB, and UVC. Unlike ionizing radiation, such as X-rays and gamma rays, which have enough energy to remove tightly bound electrons from atoms or molecules, UV radiation lacks the necessary energy to ionize atoms or molecules. Instead, it primarily interacts with the outermost electrons of atoms or molecules, leading to chemical reactions and causing biological effects.

UV radiation is commonly associated with sunlight and has various effects on living organisms and materials. It can cause sunburn, premature aging of the skin, and an increased risk of skin cancer. Exposure to excessive UV radiation can also damage the eyes and impair the immune system. It is important to protect oneself from excessive UV exposure by wearing sunscreen, protective clothing, and sunglasses.

Learn more about UV radiation here:

https://brainly.com/question/4144192

#SPJ11