describe four uses of the heating effect of electricity in the home.

Answers

Answer 1

Answer:

Explanation:

Electric Bulb: In an electric bulb, the filament of bulb gives light because of heating effect of electricity. The filament of bulb is generally made of tungsten metal; having melting point equal to 3380°C.

Electric iron: The element of electric iron is made of alloys having high melting point. Electric heater and geyser work on the same mechanism.

Electric fuse: Electric fuse is used to protect the electric appliances from high voltage; if any. Electric fuse is made of metal or alloy of metals, such as aluminium, copper, iron, lead, etc. In the case of flow of higher voltage than specified, fuse wire melts and protects the electric appliances.


Related Questions

An aeroplane of mass 30000kg produced a force of 20kN to get it to accelerate to 50m/s so it could take off. Calculate the amount of time it was accelerating for


Will mark branliest! Need working out aswell!

Answers

Answer:

[tex]75\:\mathrm{seconds}[/tex]

Explanation:

The impulse-momentum theorem states that the impulse of an object is equal to the change in momentum of that object:

[tex]\Delta p=m\Delta v[/tex].

Impulse is also given by [tex]F\Delta t[/tex] where [tex]F[/tex] is the average net force and [tex]\Delta t[/tex] is change in time.

Therefore, we can set both equations equal to each other and solve:

[tex]\Delta p= F\Delta t[/tex].

Assuming that the airplane was initially at rest, its change in momentum is:

[tex]\Delta p =m\Delta v,\\\Delta p=30,000\cdot 50=1,500,000[/tex]

Impulse is represented using [tex]Ns[/tex]. Therefore, convert [tex]20\:\mathrm{kN}[/tex] to Newtons:

[tex]20\:\mathrm{kN}=20,000\:\mathrm{N}[/tex]

Thus:

[tex]1,500,000=20,000\cdot t,\\t=\frac{1,500,000}{20,000}=\fbox{$75\mathrm{s}$}[/tex].

If two 1000kg cars have a gravitational force of 1.067x10^-5 N towards each other, how far apart are they?

Answers

Answer:

6.25m

Explanation:

Given parameters:

Masses of the car  = 1000kg

Gravitational force  = 1.067 x 10⁻⁵N

Unknown:

Distance between them  = ?

Solution:

To solve this problem, we use the expression below from the universal gravitational law;

     Fg  = [tex]\frac{G x mass 1 x mass 2}{distance^{2} }[/tex]  

G = 6.67 x 10⁻¹¹

     1.067 x 10⁻⁵  = [tex]\frac{6.67 x 10^{-11} x 1000 x 1000 }{d^{2} }[/tex]  

             d  = 6.25m

MY BRAINS NOT WORKING

Describe how Newton's Third Law applies to the forces between the bike and
the trailer.

Answers

Answer:

Explanation:

The Earth pulls the bicycle downward through the force of gravity, and, in response, the bicycle pulls up on the Earth with a force of equal magnitude. Gravity "pushes" the Earth into the road, which pushes up with an opposite force, canceling gravity. Thus, action reaction forces do not cancel each other.

A water heater takes 2.5A at 230V. What is its hot resistance?​

Answers

Answer:

92 OHMS

Explanation:

The resistance will be "92 ohm".

According to the question,

Current,

2.5 A

Voltage,

230 V

As we know the formula,

→ [tex]I = \frac{V}{R}[/tex]

or,

→ [tex]R = \frac{V}{I}[/tex]

By substituting the values, we get

→     [tex]= \frac{230}{2.5}[/tex]

→     [tex]= 92 \ ohm[/tex]

Thus the answer above is right.

Learn more:

https://brainly.com/question/16841137

1. A net force of 13 Newtons acting north on an object for 4.0 seconds will produce an impulse of?

Answers

Answer:

48 kg m/s north

Explanation:

This is not the exact answer but if there's something really close choose that answer

please help, thank you !

Answers

Answer:

0.04658 m from the nut

Explanation:

Recall that torque is defined as the vector product of force (F) times distance (d). Then, given that the force is applied perpendicular to the wrench, gives the sine of the angle (90 degrees) equal to 1, simplifying the calculation which consists basically on solving for d in the equation:

2.25 N*m = 48.3 N * d

d = 2.25 /48.3  m ≈ 0.04658 m

Object 1 has a charge of -2.3 x 10^-6 and Object 2 has a charge of - 4.2 x 10 ^- 6 C. Calculate the electrostatic force between the two objects if they are 0.099 m apart.
A) 9.76 x 10^-11 N
B) 9.86 x 10^-10 N
C) 8.87 N
D) 0.878 N

Answers

Explanation:

i think it's A or C hope it helps

The phases of the moon are caused by which of the following

A. Earths rotation around its axis
B. Earths orbit around the sun
C. The moons orbit around the earth
D. Earths shadow falling on the moon

Answers

Answer: C: The moons orbit around the earth.

Explanation:

An electromagnetic wave is composed of electrical and magnetic energy.


Please select the best answer from the choices provided

T
F

Answers

Answer:

the answer is T!!

!!!!!!!!

Answer:

true

Explanation:

hope this helps


I NEED HELPP!!!
Calculating the Value of an Unknown Resistor

Answers

The answer to that would be gibberish times 5 minus 10

i need help cause i dont get it
I think it is wrong somehow

Answers

Across

3) biomass

5) fossil

6) dioxide

7) hydro

8) nuclear

Down

1)?

2)?

4) solar

Kinetic energy can be calculated using the formula KE = 1/2mv2. What is the kinetic energy of a bicycle that has a mass of 20 kg and is traveling at a velocity of 10 m/sec?​

Answers

Answer:

KE = 1000 J

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Physics

Energy

Kinetic Energy Formula: [tex]\displaystyle KE = \frac{1}{2}mv^2[/tex]

Energy is in Joulesm is mass (in kg)v is velocity (in m/s)Explanation:

Step 1: Define

m = 20 kg

v = 10 m/s

Step 2: Find KE

Substitute [KE]:                    [tex]\displaystyle KE = \frac{1}{2}(20)(10)^2[/tex]Exponents:                          [tex]\displaystyle KE = \frac{1}{2}(20)(100)[/tex]Multiply:                               [tex]\displaystyle KE = (10)(100)[/tex]Multiply:                               [tex]\displaystyle KE = 1000[/tex]

Q. IF THE SPEED LIMIT IS 22M/S, IS THE CAR TRAVELLING TOO FAST.

Answers

Answer:

yes its travelling at 79.2 km/h (49.2m/h)

If an oceanic plate and a continent plate converge, or push towards each other, which plate will sink under the other one?​

Answers

Answer:

The oceanic plate will sink under

Explanation:

Due to erosion over time and the sudden shift, the continental plate will rise causing earthquakes, tsunami’s, etc..

a person runs 15 kilometers in two hours what is his/her average speed ​

Answers

Answer:

[tex]\displaystyle V=7.5\ km/h[/tex]

Explanation:

Average Speed

If an object travels a distance d in a time t regardless of the direction, the average speed is the quotient of the distance over the time:

[tex]\displaystyle V=\frac{d}{t}[/tex]

It's known a person runs d=15 kilometers in t=2 hours, thus his/her average speed is:

[tex]\displaystyle V=\frac{15\ km}{2\ h}[/tex]

Calculating:

[tex]\boxed{\displaystyle V=7.5\ km/h}[/tex]

If there is a difference in air pressure between two locations, what happens?

Answers

Answer:

High in the atmosphere, air pressure decreases. ... A low pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet. As the air rises, the water vapor within it condenses, forming clouds and often precipitation.

Explanation:

Movement of air caused by temperature or pressure differences is wind. Where there are differences of pressure between two places, a pressure gradient exists, across which air moves: from the high pressure region to the low pressure region. This movement of air, however, does not follow the quickest straight line path hope this helps!

A car is traveling on the highway at 55 MPH. A slow moving truck cuts them off. He hits the gas pedal and speeds up to 78 MPH in order to pass him. It takes 6 seconds to complete the pass. What was his acceleration?

Answers

Answer:8 mph

Explanation:

Guidewords for the word “serpent” may be
a.
Serbia and service
c.
Seltzer and Saturday
b.
Seattle and section
d.
Solitude and second
THE CORRECT ONE IS A!!!!!!!!

Answers

Answer:

A. Serbia and service

Explanation:

A guide word is a word written on top of a page to indicate the first or last word entry on that page. For example in a dictionary, they indicate the alphabetical first and last words on the page.

In this example; the word ' serpent ' note the first three letters to guide you in the words that are on that page;

In this case : Serbia  and Service.

A 50kg person standing still in ice skates throws their helmet to the right at 25 m/s while on a frictionless surface. This gives the person a speed of 1.0m/s leftwards. What is the mass of the helmet?
Consider rightward as the positive direction.

Answers

Answer:

2.0 kg

Explanation:

Question 17 of 25
A sound wave from a brass bell passes through the air with a
wavelength of 3.5 m. When the sound wave originated in the
brass bell, its wavelength was 47 m. If the sound wave has a
constant frequency of 100 Hz, what was its speed as it
traveled through the brass bell? (The equation for wave speed
is v= f*1.)
A. 3,500 m/s
B. 4,700 m/s
C. 350 m/s
D. 470 m/s

Answers

Answer:

The speed of the wave as it travelled through the brass bell is;

B. 4,700 m/s

Explanation:

The given parameters are;

The wavelength of the sound wave produced from the brass bell, [tex]\lambda _{(air)}[/tex]  = 3.5 m

The wavelength of the wave in the brass bell, [tex]\lambda _{(brass \ bell)}[/tex]  = 47 m

The frequency of the wave in the brass bell, f = 100 Hz

The given equation for wave speed, v = f × λ

Therefore, the speed of the wave as it travelled through the brass bell, [tex]v _{(brass \ bell)}[/tex], is given as follows;

[tex]v _{(brass \ bell)}[/tex] = f × [tex]\lambda _{(brass \ bell)}[/tex] = 100 Hz × 47 m = 4,700 m/s  

The speed of the wave as it travelled through the brass bell =  [tex]v _{(brass \ bell)}[/tex] = 4,700 m/s

Answer:

B.) 4700 m/s

Explanation:

HELP PLEASE!

A 700 kg race car makes one lap around a track. It has a velocity of 20 m/s with a centripetal force of 5,600 N. What is the radius of the track?

A speed skater goes around a turn with a 25 m radius. The skater has a velocity of 15 m/s and experiences a centripetal force of 720 N. What is the mass of the skater?

A 900-kg car moving at 5 m/s takes a turn around a circle with a radius of 30 m. Determine the net force acting upon the car.

An 800 kg race car makes one lap around a track. It has a velocity of 40 m/s with a centripetal force of 16,000 N. What is the radius of the track?

PLEASE EXPLAIN AND SHOW WORK!

Answers

The centripetal force is the force that keeps a body moving in a circular path.

The centripetal force is given by; F = mv^2/r

1) We have;

F = 5,600 N

v = 20 m/s

r =?

m = 700 kg

Making r the subject of the formula;

r =mv^2/F

r = 700 × (20)^2/5,600

r = 50 m

2) F = mv^2/r

F = 900 × (5)^2/30

F = 750 N

3) Making r the subject of the formula;

r =mv^2/F

r = 800 × (40)^2/ 16,000

r = 80 m

Learn more: https://brainly.com/question/11324711

Marina walked 2km in half an hour, what was her average speed during her walk?

Answers

Answer:

4km/hr

Explanation:

A bucket is filled partly with water such that its combined mass is 2.5 kg. It is tied to a rope and whirled in a circle with a radius of 1.4 m. The speed at the top of the circle is 4.0 m/s and the speed at the bottom of the circle is 6.0 m/s. Determine the magnitude of the net force acting on the bucket at the bottom of the circle.

Answers

Answer:

1. Simply τ = m x g x r = 54kg x 9.8m/s² x 0.050m = 26 N·m

2. The bucket creates a torque

τ = 75kg x 9.8m/s² x 0.075m = 55 N·m,

so we must create the same torque with the handle.

55 N·m = F x 0.25m

F = 220 N

Explanation:

Hope this is helpful

Help Please! 5 questions for 25 points? seems fair? Thank you!

Answers

Answer:

1. where the skater turns and goes back in the opposite direction- point w

2. gravitational force of the object

3. point a

4. the bar representing sphere 4 should be twice as tall as the bar representing sphere 2

5. B; its mass is smaller (?)

yolo

Answer:

ABCDEFGHIJKLMNOPQRSTUVWXYZ

Explanation:

A 4.00 kg block is pushed along the ceiling with a constant applied force of 85.0 N that acts at an angle of 55.0 degrees with the horizontal. The block accelerates to the right at 6.00 m/s2. Determine the coefficient of kinetic friction between block and ceiling.

Answers

Answer:

0.35

Explanation:

According to Newton's second law;

\sum Fx = ma

Fm - Ff =ma

Fm is the moving force = Wsin theta

Fm = 4(9.8)sin55

Fm = 32.1N

Ff is the frictional force = nmgcos theta

Ff = n(4)(9.8)cos55

Ff = 22.48n

Acceleration a = 6.0m/s²

Substitute the given values into the formula and get the coefficient of friction

32.11-23.48n = 4(6)

32.11-24= 23.48n

8.11 = 23.48

n = 8.11/23.48

n = 0.35

Hence the coefficient of friction is 0.35

Help Please!

Think about how you can get the color white from using light versus how you can get the color white from using paint or dye. Now, think about how you can get the color black from using light versus from paint or dye. Using this, explain why we call coloring from light “additive” and coloring from paint or dyes “subtractive”.

Answers

Answer: Subtractive colors absorb OR subtract some lights causing it to reflect, and creating white.

Explanation:

Subtractive colors are created by completely or partially absorbing (or subtracting) some light wavelengths and reflecting others.

A softball and a baseball are launched from 2 different pitching machines at the same time.
th
Softball
182 g
165 m/sec
Baseball
143 g
112 m/sec
Which of these BEST explains what factors give the baseball and softball different velocities?
O mass and speed
O mass and direction
O speed and direction
O size and mass

Answers

The answer is Mass and speed

A 80 N horizontal force is applied to a 20.0 kg block at rest on a horizontal surface where µS = 0.6.? What is the magnitude of the force of friction on the block?

Answers

Answer:

The frictional force on the block is 118 N.

Explanation:

Given;

horizontal force applied on the block, f = 80 N

mass of the block, m = 20.0 kg

coefficient of friction, μ = 0.6

The frictional force on the block is calculated as;

F = μR

F = μ(mg)

F = 0.6(20 x 9.81)

F = 117.7 N

F = 118 N.

Therefore, the frictional force on the block is 118 N.

what’s the doing between high and low pressure systems.

Answers

High pressure systems entail sinking air, while lows entail rising air. High pressure systems form where air converges in the higher levels of the atmosphere. The converging air has nowhere to go and is forced to sink toward the ground. This sinking effect inhibits cloud formation and therefore precipitation.

PLEASE HELPP
Look at the picture

Answers

answer: It’s c
explaining: i guessed
It’s either C. Or B. but it’s most probably B. Sorry if I’m incorrect.
Other Questions
We can draw three inequivalent Lewis structures for the sulfite ion , SO32- . The concepts of formal charge and electronegativity can help us choose the structure that is the best representation. 1. Assign formal charges to the elements in each of the structures below. Note: Count oxygen atoms starting from the left for each structure. A B C Formal Charge S O1 O2 O3 2. The best Lewis structure for SO32- is Bob borrows $3000 at 6% interest, compunded anually. If he makes no payments, how much will he owe seven years from now? a$3049.42 b$3140.36 c$4510.89 d$4260.00 PLEASE HELP IM TIMED p.s its ok if you only answer the ones you know and skip the ones you dont know.1.What is habeas corpus?A. the principle that a persons property cannot be taken by the government without legislative approvalB. a written list of freedoms that a government promises to protectC. the principle that a person cannot be imprisoned without being charged for a specific crimeD. the idea that no monarch or other government leader can levy taxes without legislative approval2.Which were the upper class of colonial society?A. small planters, independent farmers, and artisansB. indentured servantsC. the gentryD. free African Americans3. In colonial times, how did a young man often learn a trade?A. by becoming an apprenticeB. by going to schoolC. by becoming an indentured servantD. by buying his own business4.Which is true of womens roles in colonial towns?A. 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Diego told hisneighbor that 3/9 represents a terminating decimal. Is Diego correct? Explainyour reasoning in a full sentence.Your answer I NEED HALP ASAP HALP Heres a short story I wrote. Tell me what you think :) (The main characters are kangaroos and since they live in Australia I had to type as if their Australian. Im American though so the accent is probably horrible lol)Willow And Kipper- A trip to the Juice BarGood day, mate! How about a little dash to the juice bar, eh? Willow the kangaroo asks his friend.Sounds jolly good, mate! Lets hop on over! Kipper the kangaroo replies.Righty-O then! Willow says.They hopped on over to Juice Smack, their typical hang-out spot. They were greeted by JoJo the koala.Ello mate! Whatll it be for you lads today? JoJo asks.Hmm, Ill take a Fresh Kiwi Bubbler Smoothie and a Traditional Davidsons Plum Scone. How about you, Kipper?Ill have the same as her.Righty then. There are benches next to the loo so have a seat over there.Thanks, mate. 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