https://student.masteryconnect
Approved Sites
If the solar system were used as a model of an atom, what would the Sun MOST likely represent?
an ion
a nucleus
a neutron
an electron

The statement is false that Secret materials may be transmitted by the same methods as confidential materials is False.

There are three characterization levels for the information system in the US: Highly classified, Secret, and Confidential. The term "secret" should allude to data whose unapproved disclosure could sensibly be expected to significantly affect the public safety.

Data that could sensibly be anticipated to hurt public safety whenever unveiled without approval will be marked as "classified.". Confidential material might be sent by U.S. Certified mail as opposed to by U.S. Enlisted mail. It can't be shipped off workers for hire by means of Top of the line mail.Highly confidential data will not be replicated or repeated without endorsement from the Highly classified Control Official.

To know more about Confidential materials, visit here:

https://brainly.com/question/5547318

#SPJ4

Answer:

Acceleration is the rate at which an object changes its velocity.  an object is said to be in acceleration if there is a chang in its velocity.

Explanation:

i hope this helped a lot

if it did then pls mark brainliest

pls and thank you!!

The diver most likely refers to the ocean's surface when describing the squid's location. Option A is correct.

The vertical distance between the object's top and the bottom is defined as height. It is measured in centimeters, inches, meters, and other units.

The organism is shown as;

Seaweed = - 20 meters

Clownfish  =  - 23 meters

Squid = - 44 meters.

The given data is a reference from the surface of the ocean. The negative sign in the data shows that the given height is below the ocean surface.

The diver most likely uses the ocean surface as a reference point to describe the position of the squid.

Hence, option A is correct.

To learn more about the height, refer to the link;

https://brainly.com/question/10726356

#SPJ1

Answer:

A

Explanation:

Edge 2022

The centripetal acceleration of the cyclist is \(10 m/s^2\).The centripetal acceleration of the cyclist can be found by using the formula:

\(a = v²/r\) where, v is the speed of the cyclist and r is the radius of the circular track.Substituting the given values,

we get:

The centripetal acceleration of an object moving in a circular path is given by the formula:

Centripetal acceleration = \((Velocity)^2 / Radius\)

In this case, the velocity of the cyclist is given as 20 m/s, and the radius of the track is 40 m.

Substituting these values into the formula, we have:

Centripetal acceleration = \((20 m/s)^2 / 40 m\)

Calculating the expression:

Centripetal acceleration =\(400 m^2/s^2 / 40 m\)

Centripetal acceleration = \(10 m/s^2\)

Therefore,

to know more about centripetal acceleration visit :

https://brainly.com/question/17123770

#SPJ11

According to the law of supply, a cornerstone of economic theory, an increase in price causes a rise in the amount provided while other variables remain constant.

In other words, there is a direct correlation between price and quantity, with quantities responding to changes in price in the same manner. This indicates that manufacturers are prepared to increase output as a strategy to boost earnings by putting more of a product on the market for sale at higher prices.

The rising slope of the supply curve is caused by the law of supply, which is an association between the amount provided and the price that is positive.

To know more about Law of supply here

https://brainly.com/question/26374465

#SPJ4

The force between the two masses is 4.6  x 10⁻⁹ N.

The gravitational force between the two masses is calculated by applying Newton's law of universal gravitation as shown below.

F = Gm₁m₂/r²

where;

F = (6.67 x 10⁻¹¹ x 4054 x 7688) / (673²)

F = 4.6  x 10⁻⁹ N

Thus, the force between the two masses is determined from Newton's law of universal gravitation.

Learn more about gravitation force here: https://brainly.com/question/72250

#SPJ1

(a) Flowchart: A condenser process flowchart is provided, illustrating the inputs and outputs of the humid air stream, O₂, N₂, and the condensed liquid water. (b) Total flow rate: The total flow rate of the feed stream entering the condenser is 5.296F mol/s, considering the flow rates of water vapor, O₂, and N₂. (c) Enthalpy and heat transfer: The enthalpy changes for water vapor and O₂ are calculated, resulting in a heat transfer of -0.072 kF kW, indicating heat removal by the condenser. the heat transferred by the condenser is -0.072 kF kW.

(a) Flowchart:

(b) Total flow rate of the feed stream:

The flow rate of N2 leaving the condenser is given as 5.18 mol/s.

The flow rate of water vapor entering the condenser is 58.0 mol% of F.

80% of the above water vapor is condensed and removed, leaving 20% remaining.

So, 20% of the above water vapor remaining in the humid air after condensation is 0.116F mol/s.

The flow rate of O2 is given as 8.8 mol% of F.

The total flow rate of the feed stream is the sum of the flow rates of water vapor, O2, and N2:

Total flow rate = Flow rate of water vapor + Flow rate of O2 + Flow rate of N2

              = 0.116F + 0.088F + 5.18

              = 5.296F mol/s

(c) Inlet-Outlet Enthalpy Table:

To calculate the heat transferred by the condenser, we need to determine the enthalpy changes for water vapor (H3 to H4) and O2 (H5).

The enthalpy change for water vapor can be calculated as:

ΔH_vap = Enthalpy of water vapor at 30°C - Enthalpy of water vapor at 150°C

      = [40.657 + 0.119 × (30 - 0)] - [40.657 + 0.119 × (150 - 0)]

      = -13.607 kJ/kmol

Enthalpy of water leaving the condenser (H4) can be calculated as:

H4 = Enthalpy of water vapor at 30°C = 40.657 kJ/kmol

Enthalpy of O2 leaving the condenser (H5) can be taken as:

H5 = Enthalpy of O2 at 30°C = 0.102 kJ/kmol

The heat transferred by the condenser (q) can be calculated as:

q = Total flow rate × ΔH

 = (5.296F mol/s) × (-13.607 kJ/kmol) × 10⁻³ kW/J

 = -0.072 kF kW (where kF is the constant conversion factor 10⁶)

Therefore, the heat transferred by the condenser is -0.072 kF kW.

To know more about condenser click here:

https://brainly.com/question/13853336

#SPJ11

A leftward force of 50 N is applied to an 8 kg object to move it across a rough surface with a leftward acceleration of 5 \(m/s^{2}\) , its

gravitational force = 78.4 N

normal force = 78.4 N

frictional force = 10 N rightward

net force =  40 N leftward

coefficient of friction = 0.128

given

force = 50 N

mass = 8 kg

acceleration = 5 \(m/s^{2}\)

gravitational force = mg = 8 * 9.8 = 78.4 N

normal force = mg = 78.4 N ( as N= mg )

- F (applied) + frictional force  = - F (net )

F (applied)  - fr = F (net )

50 - fr = mass * acceleration

50 - fr = 8 * 5

fr = 10 N

Fnet = ma = 8 * (-5) = -40 N

Frictional force = mu * N

10 = mu * 78.4

mu (coefficient of friction ) = 10 / 78.4 = 0.128

To learn more about gravitational force here :

https://brainly.com/question/12528243

#SPJ1

Tangential speed of the tip of the bat is 2.2 m/s

Given:

angular speed = 2 rad/s

radius of ball = 1. 1-m

To Find:

tangential speed

Solution: Tangential velocity is the linear speed of any object moving along a circular path. A point on the outside edge of a turntable moves a greater distance in one complete rotation than a point near to the center.

The rate of variation in the matter's tangential velocity along a circular path is known as tangential acceleration.

A tangent line traced to the circle at the location of the object points in the direction of the velocity vector at any given time.

Here, v is Tangential speed t is the time ω is angular speed and r is radius

Vt = ω r

V = 2 x 1.1

V = 2.2 m/s

Hence the Tangential speed is 2.2m/s

Learn more about Tangential speed here:

https://brainly.com/question/19660334

#SPJ4

If an object has a balanced force on it, there is a possibility that the object may be in a position i.e. there is no change in speed and direction of the body.

If the forces acting on an object is balanced, it means that the net force acting on the body is zero.

According to Newton's law of motion, an object will continue in a state of motion in a straight line unless acted upon by an external force.

This external force might be a balanced or unbalanced force. Hence if an object has a balanced force on it, there is a possibility that the object may be in a position i.e. there is no change in speed and direction of the body.

Learn more here: https://brainly.com/question/20835245

Explanation:

improved saftey for children

Answer:

D. Improved safety for children

Explanation:

Answer:

The electrical energy consumed in boiling the water is 0.0788 kWh

Explanation:

Given;

mass of the water, m = 600 g = 0.6 kg

power rating of the kettle, P = 1500 W = 1.5 kW

specific heat capacity of water, c = 4,200 J/kg⁰C

density of water, = 1000 kg/m³

time taken to boil the water, t = 3 mins + 9 s = (3 x 60s) + 9 s = 180 s + 9 s = 189 s = \(189 \ s \times \frac{1 hr}{3.600 \ s} = 0.0525 \ hr\)

The electrical energy consumed in boiling the water is calculated as;

E = P x t

E = 1.5 kW  x 0.0525 hr

E = 0.0788 kWh

Therefore, the electrical energy consumed in boiling the water is 0.0788 kWh

Answer:

U = 66,150 J

Explanation:

Gravitational Potential Energy

Gravitational potential energy is the energy stored in an object because of its vertical position or height in a gravitational field.

It can be calculated with the equation:

U=m.g.h

Where m is the mass of the object, h is the height with respect to a fixed reference, and g is the acceleration of gravity or \(9.8\ m/s^2\).

The child of mass m=45 Kg is perched above a h=150 m ravine. His gravitational potential energy is:

\(U=45~Kg\cdot 9.8\ m/s^2\cdot 150\ m\)

U = 66,150 J

Answer:

R= v/I

R= 9/1.05=8.5714 ohms

As a detective investigating the incident, I would start by analyzing the evidence and gathering further information. Now, armed with this information, we can continue the investigation by considering factors such as the positioning of nearby flowerpots, the condition of the window.

Let's break down the given information and work through the investigation step by step:

Analysis of the smartphone video:

The video captured the falling flowerpot as it passed by a window.

In 8 frames, the flowerpot fell 0.84 of the height of the window.

The video was captured at 30 frames per second.

Window height measurement:

I visited the apartment and measured the window height to be 1.27 meters.

Based on this information, we can proceed with the investigation:

Calculate the distance the flowerpot fell in the 8 frames:

Since the video was captured at 30 frames per second, the total duration of the 8 frames is 8/30 seconds.

Let's denote the height of the window as H. In the 8 frames, the flowerpot fell 0.84 * H.

Therefore, the distance the flowerpot fell in those 8 frames is (0.84 * H) * (8/30) meters.

Calculate the actual height of the fall:

From the window height measurement, we know the height of the window is 1.27 meters.

The distance the flowerpot fell in those 8 frames is given by (0.84 * H) * (8/30) meters.

Setting this distance equal to the window height (1.27 meters), we can solve for H.

Let's perform the calculations:

(0.84 * H) * (8/30) = 1.27

Simplifying the equation:

0.224 * H = 1.27

H = 1.27 / 0.224

H = 5.669 meters

Therefore, the approximate height of the fall is 5.669 meters.

Now, armed with this information, we can continue the investigation by considering factors such as the positioning of nearby flowerpots, the condition of the window, any signs of foul play or tampering, and interviewing potential witnesses or residents who may have more information about the incident.

To know more about flowerpots here

https://brainly.com/question/13738911

#SPJ4

The correct answer is Upthrust= 0.7N and Volume = 1.02 x 10⁻² g

Solid weighs.09 N in air.

Solid weighs less than liquid because of an upward force operating on it (solid weighs in liquid =.02 N).

A solid body experiences an upthrust when it is partially or entirely submerged in a fluid, such as water. In this case, the fluid's weight (water) equals the fluid's weight that the water has displaced.

upthrust is = to.09 -.02 N = 0.7N.

Upthrust = displaced liquid's weight

so that weight of liquid equal to volume of solid = 0.7 N

Volume of solid times mass of liquid = 0.07/9.8 = 0.00714 =  7.14 x 10⁻³ kg

Volume = Mass / density

Volume = 7.14 x 10⁻³ / 700

= 1.02 x 10⁻⁵ kg= 1.02 x 10⁻² g

To learn more about upthrust refer the link:

https://brainly.com/question/24383048

#SPJ9

Braking up to -8 meters per second squared is more risky than the other one.

According to the definition of inertia, matter has the ability to remain at rest or to move uniformly in a single direction unless applied with an external force.

The ability of moving object to remain in moving  uniformly in a single direction  is called inertia of moving.

In this case, the car moving with certain velocity has inertia of moving. By certain applying brakes  of more deceleration is more risky as it works opposite to the  inertia of moving. Hence, braking up to -8 meters per second squared is more risky than breaking up to -3 meters per second squared.

As 8 meters per second squared acceleration or deceleration is larger compare to other; there may have no  situation where it can be the opposite.

Learn more about inertia here:

https://brainly.com/question/3268780

#SPJ1

Answer:

The density of  putty 2 g/cm³

Explanation:

Given:

V₀ = 25 ml = 25 cm³

V = 29 ml = 29 cm³

m = 8 g

______________

ρ - ?

The density of  putty:

ρ = m / (V - V₀)

ρ = 8 / (29 - 25) = 8 / 4 = 2 g/cm³

1 meter per second squared is equivalent to 0.001 kilometer per second squared.

To convert 1 meter per second squared (m/s²) into kilometer per second squared (km/s²), we need to consider the conversion factor between meters and kilometers.

1 kilometer is equal to 1000 meters, so we can use this conversion factor to convert the units.

First, let's convert the acceleration from meters per second squared to kilometers per second squared:

1 m/s² = (1/1000) km/s²

Therefore, 1 meter per second squared is equal to 0.001 kilometer per second squared.

So, 1 m/s² = 0.001 km/s².

Learn more about meter per second squared here :-

https://brainly.com/question/19308945

#SPJ11

Instantaneous velocity and Average acceleration are vectors. Hence, the correct options are (I) and (II).

The instantaneous velocity is a quantity that shows us how quickly an object is moving at any point along its path. The time between the two events approaches zero when the average velocity between two points on the path reaches a certain limit. Instantaneous velocity is a vector with a dimension of length per time, similar to average velocity.

The rate at which the velocity changes is known as the average acceleration vector. It moves in the direction of the velocity change, v. The rate at which a velocity is changing over time is called acceleration. Acceleration is also a vector quantity and must take into account changes in both the magnitude and direction of a velocity. Because velocity has both magnitude and direction, it is referred to as a vector quantity.

To learn more about Vector and Scalar quantities, refer to the answer below:

https://brainly.com/question/26044328

#SPJ1

Answer:

0.87 g per ml

Explanation:

D=M/V

43.5/50=0.87

There are 4 questions here that need to be solved.

a. The velocity of the astronaut & book system after the collision (using conservation of momentum) is 0.19 m/s

b. The initial kinetic energy of the system is 24J

c. The final kinetic energy of the system is 1.14J

d. The impulse exerted by the book on the astronaut is 11.43 kg.m/s

In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during acceleration, the body maintains this kinetic energy unless its speed changes.

Now, let's answer the question.

a.

m1 book = 3kg

m2 astronaut = 60kg

vi1 = 4m/s

vi2 = 0m/s

Vf = final speed after collision

Now, let calculate using conservation of momentum formula

ρi = ρf

m1 * vi1 + m2 * v2 = (m1 + m2) * vf

3 * 4 + 60 * 0 = (3 + 60) * vf

12 = 63vf

vf = 0.19 m/s (rounded)

So, the velocity of the astronaut-book system after the collision is 0.19 m/s.

b. Initial kinetic energy will be calculated using kinetic energy formula

KEi = 1/2 * m1 * Vi1^2

= 1/2 * 3 * 4^2

= 24J

So, the initial kinetic energy of the system is 24J

c. Final kinetic energy will be calculated as follows

KEf = 1/2 * (m1 + m2) * vf^2

= 1/2 * (3 + 60) * 0.19^2

= 1.137J

So, the final kinetic energy of the system is 1.137J

d. To calculate the impulse, it is basically the change in momentum of the book, calculated as follows

I (impulse) = m1 * (Vi1 - Vf)

= 3 * (4-0.19)

= 11.43 Kg.m/s

Therefore, the impulse exerted by the book on the astronaut is 11.43 Kg.m/s

Learn more about kinetic energy https://brainly.com/question/26472013

#SPJ4

At aphelion, the Earth is 96% of the Earth-sun distance at aphelion which means that the correct statement is that at aphelion, because the gravitational attraction is lower, the speed of the Earth is higher and is denoted as option B.

This is referred to as the  farthest point in the orbit of a planet such as the earth from the sun.

In a a scenario where the Earth is 96% of the Earth-sun distance at aphelion, then it means that the orbit has almost been completed which means that a high amount of speed was involved in the process.

This is as a result of the gravitational attraction being lower which has an inverse relationship with the speed of the Earth which is why it was higher and is therefore the reason why option B was chosen.

Read more about Aphelion here https://brainly.com/question/913716

#SPJ1

Answer:

Explanation:

Data:

mass = m = 24kg

force = F = 5 N

accelaration = a = ?

Formula:

 F = ma

Putting:

Customers are willing to pay what they think something is worth and don't really care about your costs. If your costs push prices above their perceived value, they simply won't buy. If the perceived value is much higher than your costs, they'll happily pay a price that gives you a huge margin. One of the best examples of this is in retail clothing.

Answer:

Answer: The answer is 40.

Explanation: There is a typo, they mean 5 minutes. Five minutes is the line between zero and 10, and the dot matches up at 5 and 200. 200 divided by 5= 40.

(i got this answer from: https://brainly.com/question/18253554)

Answer:

Efficiency of a machine is how well the machine works and what the machine is capable of doing.

Mechanical advantage=Load/Effort.

720/180=4

B 10,000 - 30,000 K Blue-white stars

A 7,500 - 10,000 K White stars

F 6,000 - 7,500 K Yellow-white stars

G 5,000 - 6,000 K Yellow stars (like the Sun)

The lowest temperature stars are red while the hottest stars are blue. Astronomers are able to measure the temperatures of the surfaces of stars by comparing their spectra to the spectrum of a black body.