On cold winter mornings, Ellen's mother will frequently put a space heater in the kitchen. The space heater has coils that use electrical energy to make heat. When the heater is turned on, the coils glow bright orange and heat the room. What types of energy are given off by the space heater?

Answers

Answer 1

Answer:

C

Explanation:

It seems right.

Answer 2

answer

Think of it this way. Osmosis occurs when water flows to a different side given its a membrane or not. This is because it flows to a less dense area to reach equilibrium between the two sides. Heat is very similar. It will try to spread to places where there is not as much heat. Keeping the laws of heat travels up, the heat from the coils will reach the ends. We call this "Thermal Equilibrium"


Related Questions

A 2-m3 rigid insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a supply line that carries steam at 400°C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure in the tank rises to 2 MPa. At this instant the tank temperature is measured to be 300°C. Determine the mass of the steam that has e

Answers

Answer:

5.6449

9 mpa

Explanation:

we are to determine mass of steam that has entered and also the pressure of steam.

After solving

Mass of steam = m2 - m1

= 15.925-10.2901

= 5.6449kg

Then the enthalpy of steam was calculated to be 3109.26

Using steam table, tl = 400⁰c

Hl = 3109.26

Supply line pressure = 9mpa

Please refer to attachment for all calculations

how can philosophy help you become a productive citizen

Answers

Answer:

Philosophy is a study that involves the nature of knowledge and truth. It serves as a guide that helps an individual seek which things are valuable and essential in life. ... It gives you a sense of direction, knowing the weight of things, therefore making you more productive.

What is the difference between em waves and mechanical waves?

Answers

Answer:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

Explanation:

Since electromagnetic waves do not require a medium to pass through, they are faster in matter that has fewer particles. ... ~ Sound cannot travel in a vacuum because mechanical waves, such as sound waves, require a medium to propagate through.

Peter rides his bike 5 blocks north and then 10 blocks east. What is his displacement? What is his total distance traveled?

Answers

Answer:

5 blocks east. His total distance is 15 feet.

Explanation:

I hope that this helps! Have a good day!

A soccer player kicking a ball; the ball soaring through the air and landing on the ground

Answers

Yesssssssssssssssssssss

Which of the following is NOT a benefit of cool down activities?

Answers

Answer:

Blood is moved away from the brain

Explanation:

Took the test

Gibbons, small Asian apes, move by brachiation, swinging below a handhold to move forward to the next handhold. A 9.0 kg gibbon has an arm length (hand to shoulder) of 0.60 m. We can model its motion as that of a point mass swinging at the end of a 0.60-m-long, massless rod. At the lowest point of its swing, the gibbon is moving at 3.5 m/s. What upward force must a branch provide to support the swinging gibbon

Answers

Answer:

The correct solution will be "271.95 N".

Explanation:

The given values are:

velocity  

v = 3.5 m/s

mass

m = 9.0 kg

r = 0.6 m

According to the question:

⇒ [tex]F_{branch}=F_{gravity}+F_{centrifugal}[/tex]

⇒             [tex]=mg+\frac{mv^2}{r}[/tex]

On substituting the values, we get

⇒             [tex]=9\times 9.8+\frac{9\times (3.5)^2}{0.6}[/tex]

⇒             [tex]=88.2+\frac{110.35}{0.6}[/tex]

⇒             [tex]=271.95 \ N[/tex]

Given two vectors A= 4.00i + 7.00jand B= 5.00i-2.00ja.Find the magnitude of each vector.b.Find the vector differenceC= A –B, give its magnitude and direction. c.Draw the vector A, B and C.d.Find the scalar product of A.B e.Find the vector productD= A x B, draw D and give its magnitude.

Answers

Answer:

444.99

Explanation:

Explanation:

C=A-B

=(4.00i+7.00j)-(5.00i-2.00j)

= -1.00i+9.00j

A.B=AxBx+AyBy

=(4 x 5)+(7 x -2)

=20-14

=6

3- For given three vectors a, b and c, c = a x b, then the vector c is:​

Answers

Answer:

VB

Explanation:

What are the four basics for knowledge called "innate knowledge"?

Answers

Answer: The four basics of innate knowledge are as follows:

Explanation:

1. This knowledge is learned from birth and it is inborn knowledge. It is allows the organism to act naturally. For example, a dog is not taught to pant, but it pants to reduce heat from the body.

2. It is inherent.

3. It is essential for survival.

4. It arises from intellectual knowledge rather than being learned via experiences.

What are two different ways that resistors can be connected together in a circuit? Explain the difference between the two in terms of calculating equivalent resistance.

Answers

Explanation:

Resistors in circuits can either be connected in series or in parallel.

For a series connected resistors, the same current flows through the resistors while different voltages is passed across them. The formula for calculating effective resistances in a circuit is expressed as

[tex]R_T = R_1+R_2+R_3...+R_n[/tex] where R1, R2, R3 etc. are the resistances connected in series.

The effective resistances for series connected resistors is the sum of the individual resistors

For a parallel connected resistors, different current flows through the resistors while same voltage is passed across them. The formula for calculating effective resistances in a circuit is expressed as:

[tex]\frac{1}{R_T} = \frac{1}{R_1} +\frac{1}{R_2} +\frac{1}{R_3} +...\frac{1}{R_n}[/tex]

The effective resistances for parallel connected resistors is the sum of the reciprocal of the individual resistors

Listening to the radio, you can hear two stations at once. Describe this wave interaction.

A)
diffraction
B)
interference. C)
reflection
D)
refraction

Answers

Answer:

Answer is C or B

Explanation:

why the bodies of water important for recreation​

Answers

Explanation:

Recreational water activities can have substantial benefits to health and well-being. Swimming pools, beaches, lakes, rivers and spas provide environments for rest and relaxation, physical activity, exercise, pleasure and fun. Yet they also present risks to health.

pls make it the brainliest of it has helped you !!!!

Because the ice caps are running out of water

Omar observes that many buildings in his city were built using limestone. He has read that acid rain can damage limestone. He also knows that limestone reacts with acids and that chemical reactions are affected by temperature. With this in mind, he conducts an investigation to see how the amount of damage to the limestone is affected by the amount of acid on the stone.


Which statement describes the correct plan for his procedure?Rhonda watched a video taken by a camera that was lifted into the upper atmosphere by a weather balloon. She saw the balloon pop when it reached a certain height. Afterward, Rhonda wondered what effect the air pressure at high altitudes has on the volume of gas in balloons.


What scientific practice is Rhonda performing

Answers

Answer:he conducts the investigation to see the effect acidic water has on limestone

Explanation:

A ball is thrown upward from the ground with an initial speed of 20.6 m/s; at the same instant, another ball is dropped from a building 14 m high. After how long will the balls be at the same height above the ground?

Answers

Answer:

t= 0.68 s

Explanation:

Neglecting air resistance, both balls are only under the influence of gravity, so we can use the kinematic equation for vertical displacement for both balls.First of all, we define two perpendicular axes, coincidently with horizontal and vertical directions, that we denote as x-axis and y-axis respectively.Assuming that the upward direction is the positive one, g must be negative as it always points downward.Taking the ground as our zero reference for the vertical axis (y axis), the equation for the ball thrown upward can be written as follows:

        [tex]y = v_{o}* t -\frac{1}{2} * g * t^{2} (1)[/tex]

As the second ball is dropped, its initial velocity is 0. Taking the height of the building as the initial vertical position (y₀), we can write the equation for the vertical displacement as follows:

        [tex]y = y_{o} - \frac{1}2}*g*t^{2} (2)[/tex]

As the left sides of  (1) and (2) are equal each other (the height  of both balls above the ground must be the same), the time must be the same also.We can rearrange (2) as follows:

        [tex]y -y_{o} = -\frac{1}{2}*g* t^{2} (3)[/tex]

Replacing the right side of (3) in (1), we get:

       [tex]y = v_{o}*t + (y- y_{o})[/tex]

       ⇒ [tex]t =\frac{y_{o} }{v_{o} } =\frac{14 m}{20.6 m/s} = 0.68 s[/tex]

       ⇒ t = 0.68s

A box falls out of an airplane that is traveling horizontally at 100m/s. The plane is at an altitude of 300m.
Where does the box land relative to where it was dropped from?

Answers

Answer:

782.461 m

Explanation:

  [tex]a_{x}=0[/tex] [tex]v_{xo}=100[/tex] [tex]a_{y}=-g[/tex] [tex]v_{yo}=0[/tex]

X-direction        | Y-direction

[tex]x=x_{o}+v_{xo}t[/tex]      | [tex]y=y_{o}+v_{yo}t+\frac{1}{2} a_{y} t^2[/tex]

[tex]x=100(7.82461)[/tex] | [tex]0=300-\frac{1}{2}(9.8)t^2[/tex]

x= 782.461 m      | [tex]-300=-4.9t^2[/tex]

                           | [tex]\sqrt{\frac{-300}{-4.9} } =\sqrt{t^2}[/tex]

                           | [tex]7.82461=t[/tex]

The box is falling due the attraction of gravitational force (its weight) and it lands at approximately 782.1 meters further from where it was dropped

The reason why the above value of the location is correct is given as follows:

The known parameter of the box are;

Horizontal velocity of the box, vₓ = 100 m/s

The altitude of the plane, h = 300 m

Required:

The location where the box lands

Solution:

The time it takes the box to land is [tex]t =\sqrt{\dfrac{2 \cdot h}{g} }[/tex]

Where;

g = The acceleration due to gravity ≈ 9.81 m/s²

Therefore;

[tex]t =\sqrt{\dfrac{2 \times 300}{9.81} } \approx 7.821[/tex]

The time it takes the box to reach the ground, t ≈ 7.82 seconds

Horizontal distance covered by the by the box during free fall, d, = The distance the box lands relative to where it was dropped from and is given as follows;

d = vₓ × t

∴ d ≈ 100 m/s × 7.821 s = 782.1 m

Therefore;

The distance the box lands relative to where it was dropped from d ≈ 782.1 m

Learn more about free fall motion here:

https://brainly.com/question/20332799

Homeboy Joe is riding his skateboard and playing Among Us. Because he's distracted he doesn't notice he's about to skate right off the 69.0 m cliff he's on. If he lands 22.0 m from the cliff, how fast was he skating?

Answers

Answer: He wasn’t skating he was on Ice ;)

what is the force produced on a body of 30kg mass when a body moving with the velocity of 26km/hr is acceleted to gain the velocity of 54 km/hr in 4 sec​

Answers

Answer:

F = 58.35 [N]

Explanation:

To solve this problem we must use Newton's second law, which tells us that force is equal to the product of mass by acceleration. But first we must use the following equation of kinematics.

We have to convert speeds from kilometers per hour to meters per second

[tex]\frac{26km}{hr}*\frac{1000m}{1km}*\frac{1hr}{3600s}=\frac{7.22m}{s} \\\frac{54km}{hr}*\frac{1000m}{1km}*\frac{1hr}{3600s}=15\frac{m}{s}[/tex]

[tex]v_{f}=v_{o}+(a*t) \\[/tex]

where:

Vf = final velocity = 15 [m/s]

Vi = initial velocity = 7.22 [m/s]

a = acceleration [m/s^2]

t = time = 4 [s]

Note: the positive sign of the above equation is because the car increases its speed

15 = 7.22 + (a*4)

a = 1.945 [m/s^2]

Now we can use the Newton's second law:

F = m*a

F = 30*1.945

F = 58.35 [N]

Please help me with this

Answers

Answer:

7 Newton's East

Explanation:

when the force is going in the same direction in this case east, you add the forces.

7. A 1,500-N force is applied to a 1,000-kg car. What is the car's acceleration?

Answers

Answer:

1.5m/s^2

Explanation:

Answer:

1.5 m/s2. accerelation =force ÷mass

What (rather remarkable!) equation relates the speed of light to other fundamental electromagnetic constants?

Answers

Complete Question

The complete question is shown on the first uploaded image

Answer:

The equation is   [tex]c = \frac{1}{\sqrt{ \mu_o *  \epsilon_o} }[/tex]

The value of  c is [tex]c = 2.998 *10^{8} \  m/s  [/tex]

Explanation:

From the question we are told that

   Generally the equation that  relates the speed of light to other fundamental electromagnetic constants is

     [tex]c = \frac{1}{\sqrt{ \mu_o *  \epsilon_o} }[/tex]

Here  c is the speed of light

[tex]\mu_o[/tex] is the permeability of free space with value

    [tex]\mu_o = 4\pi *10^{-7} \ N/A^2[/tex]

and  [tex]\epsilon_o[/tex] is the permittivity of free space  with value  

      [tex]\epsilon_o  =  8.85*10^{-12} \ C/V \cdot m[/tex]

So

      [tex]c = \frac{1}{\sqrt{ 4\pi *10^{-7}  *  8.85*10^{-12}} }[/tex]

=>   [tex]c = 2.998 *10^{8} \  m/s  [/tex]

The latent heat of fusion of mercury is 11.8 J/g. The amount of energy, rounded to the nearest tenth, needed to change 8.00 grams of mercury to a liquid is

Answers

Answer:

94.4

Explanation:

it is

Answer:

94.4 i took the test and got it right :)

hope that helps

We recommend that our students get at least _____ hours of behind-the-wheel instruction.
A. 6
B. 10
C. 25
D. 50

Answers

A.6 bro is the right answer

It takes 525 J of work to compress a spring 25 cm. What is the force constant of the spring (in kN/m)?

Answers

Answer:

1.680kN/m

Explanation:

Work done by the spring is expressed as shown:

[tex]W = \frac{1}{2}ke^2[/tex] where:

k is the spring constant

e is the extension

Given

W = 525Joules

extension = 25cm = 0.25m

Substitute into the formula:

[tex]525 = \frac{1}{2}k(0.25)^{2} \\525 = \frac{0.0625k}{2}\\ 525 = 0.03125k\\k = \frac{525}{0.3125}\\k = 1680N/m\\k = 1.680kN/m[/tex]

Hence the force constant of the spring is 1.680kN/m

You are studying circular motion by placing pennies on a turntable and then turning it on so that it will spin. You keep increasing the speed until one of the pennies slips off. You repeat this procedure and observe that the penny close to the outer edge always slip off first. What is the best inference?

1.The penny near the edge has a greater tangential velocity than the one in the center, so it experiences more air resistance. It’s the effect of the air “blowing” it off.

2.The centripetal force required to keep the pennies in place increases with the distance from the center. Eventually, as the turntable spins faster, the friction force between the turntable and the penny near the edge is not enough to supply the required centripetal force.

3.The centrifugal force acting on the pennies is stronger on the one near the edge than the one near the center.

Answers

Answer:

2.The centripetal force required to keep the pennies in place increases with the distance from the center. Eventually, as the turntable spins faster, the friction force between the turntable and the penny near the edge is not enough to supply the required centripetal force.

Explanation:

centripetal force = m ω² R

here m is mass , ω is angular velocity and R is distance of penny from centre

So this force depends upon R

penny on the outer edge will require  greater centripetal force to move in circular path .

The centripetal force will be provided by frictional force of table which is same for both the coin . Hence the penny on the outer edge will slip off first the moment , frictional force reach its maximum value for it . But it will be sufficient to keep in balance the penny nearer to the centre .

A uniform solid sphere has a moment of inertia I about an axis tangent to its surface. What is the moment of inertia of this sphere about an axis through its center

Answers

Answer:

2I/7

Explanation:

Formula for moment of inertia through the centre of mass of a solid sphere is given as; I_sc = (2/5) mR²

Now, from parallel axis theorem, moment of inertia of solid sphere from tangent is given as;

I = (2/5) m R² + m R²

I = (7/5) mR²

Thus,mR² = 5I/7

Putting 5I/7 for mR² in first equation, we have;

I_sc = (2/5) × 5I/7

I_sc = 2I/7

PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer:

also choose D and E i belive those are also correct

D. and E are correct. i hope you get a good score happy halloween

g A particle moves according to a law of motion s = f(t), t ≥ 0, where t is measured in seconds and s in feet. f(t) = 0.01t4 − 0.03t3 (a) Find the velocity at time t (in ft/s). v(t) = 0.04t^3−0.09t^2 Correct: Your answer is correct. (b) What is the velocity after 1 second(s)? v(1) = -0.05 Correct: Your answer is correct. ft/s (c) When is the particle at rest? t = 0 Correct: Your answer is correct

Answers

Answer:

Explanation:

If a particle move with time and expressed according to the formula:

f(t) = 0.01t⁴ − 0.03t³

a) Velocity is the change in motion of the particle with respect to time and it is expressed as;

[tex]v(t) =\frac{d(f(t))}{dt}[/tex]

[tex]v(t) = 4(0.01)t^{4-1} - 3(0.03)t^{3-1}\\v(t) = 0.04t^3 - 0.09t^2[/tex]

Hence the velocity of the particle at time t is [tex]v(t) = 0.04t^3 - 0.09t^2[/tex]

b) To calculate the velocity after 1 second, we will substitute t = 1 into the function v(t) in (a) as shown:

[tex]v(t) = 0.04t^3 - 0.09t^2\\v(1) = 0.04(1)^3 - 0.09(1)^2\\v(t) = 0.04 - 0.09\\v(t) = -0.05[/tex]

Hence the velocity after 1second is -0.05

c) The particle is at rest when when the time is zero.

Initially, the body is not moving and the time during this time is 0. Hence the particle is at rest when t = 0second

A spring has natural length 16 cm. A force of 3 N is required to holdthe spring compressed compressed to 11 cm. Find the amount ofwork instretching the spring from 17 cm to 19 cm.

Answers

Answer:

W = 0.012 J

Explanation:

For this exercise let's use Hooke's law to find the spring constant

         F = K Δx

         K = F / Δx

         K = 3 / (0.16 - 0.11)

         K = 60 N / m

Work is defined by

         W = F. x = F x cos θ

in this case the force and the displacement go in the same direction therefore the angle is zero and the cosine is equal to 1

         W = ∫ F dx        

         W = k ∫ x dx

we integrate

         W = k x² / 2

          W = ½ k x²

let's calculate

         W = ½ 60 (0.19 -0.17)²

         W = 0.012 J

Question C) needs to be answered, please help (physics)

Answers

(a) Differentiate the position vector to get the velocity vector:

r(t) = (3.00 m/s) t i - (4.00 m/s²) t² j + (2.00 m) k

v(t) = dr/dt = (3.00 m/s) i - (8.00 m/s²) t j

(b) The velocity at t = 2.00 s is

v (2.00 s) = (3.00 m/s) i - (16.0 m/s) j

(c) Compute the electron's position at t = 2.00 s:

r (2.00 s) = (6.00 m) i - (16.0 m) j + (2.00 m) k

The electron's distance from the origin at t = 2.00 is the magnitude of this vector:

||r (2.00 s)|| = √((6.00 m)² + (-16.0 m)² + (2.00 m)²) = 2 √74 m ≈ 17.2 m

(d) In the x-y plane, the velocity vector at t = 2.00 s makes an angle θ with the positive x-axis such that

tan(θ) = (-16.0 m/s) / (3.00 m/s)   ==>   θ ≈ -79.4º

or an angle of about 360º + θ281º in the counter-clockwise direction.

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Which of the following is the best example of militarism?A: England building a powerful navyB the French singing their national anthemC France's alliance with EnglandD the British teaching English in India name the 5 nations that were in the Iroquis league Plz help Me 10 points!!! I need it done before 10:00 How many attempts to settle Virginia had failed before Jamestown? Follows a summary of Gold Corp.'s cash flows ($ in millions) for the year ended Dec. 31, 2020: Cash received from: Customers $ 3,150 Interest on investments 290 Sale of land 190 Sale of Rowdy's common stock 780 Issuance of debt securities 2,900 Cash paid for: Interest on debt $ 390 Income tax 170 Debt principal reduction 2,400 Purchase of equipment 5,800 Purchase of inventory 1,900 Dividends on common stock 470 Operating expenses 680 Gold Corp would report net cash inflows (outflows) from investing activities for the period of: will mark as brainliestSimplify 5 - 2 3 + 4. The Earth can gain or lose matter. True False Can somebody help me w this, please. I put agree but I dont know what to write. Please help Put the following equation of a line into slope-intercept form, simplifying allfractions.8x + 10y = 70 Read this line from the story: It all began with Effie's getting something in her eye. What does the phrase it all began tell us about the rest of the story? A tale is about to be told. A tale is about to end. The tale will have a happy ending. Things will not turn out well for Effie. Using the existing midpoints of each side of the triangle, create the three medians. What do you observe about the way the medians Intersect? what do the nucleus cell, mitohondira cell, cell wall, chloroplast cell, cyptoplasm cell, and cell mabrane do? 2 year ago I _______ learning Spanisha) wasb) werec) has HURRY FAST ANSWER 50 POINTSSelect the correct answer.Which function is nonlinear?A. 9y + 3 = 0B. y - 4r = 1C. y = 2 + 6r4D. r - 2y = 7E. r/y + 1 = 2 Helpppo now get luck for ever (Q005) Humans are unusual because our cultural practices can actually change our environmental circumstances. We can change the environment in which natural selection acts on our traits. Describe how this process has played out in the evolution of adult lactose tolerance. Describe how this process has played out in the maintenance of the sickle-cell trait. Can you hypothesize any similar situations where our future evolution may be influenced by cultural practices we have today? alfred drove 114 miles in 3 hours. if alfred drove at a constant rate, how fast did he drive in miles per hour? distinguish between tea and coffee cultivation Which statements best describe half lives of radioactive isotopes