1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rus_ich [418]
2 years ago
14

An electric iron of resistance 20Ω takes a current of 5A. Calculate the heat developed in 30seconds?

Physics
1 answer:
Komok [63]2 years ago
6 0
<h2>ANSWER:-</h2>

The amount of heat (H) produced is given by the joule’s law of heating as H= Vlt

Where,

Current, I = 5 A

Time, t = 30 s

Voltage, V = Current x Resistance = 5 x 20 = 100V

H= 100 x 5 x 30 = 1.5 x 10⁴ J.

Therefore, the amount of heat developed in the electric iron is 1.5 x 10⁴J.

Please mark me as a BRAINLIST

You might be interested in
What description refers to fog?
wolverine [178]
I think the answer is D
4 0
2 years ago
If you adjust the brightness of a light until it matches the intensity of sourness of the taste of a lemon, you are engaging in
Butoxors [25]
Unrestricted Submarine Warfare
6 0
3 years ago
Grindstone: Rotational Dynamics and Kinematics You have a grindstone (a disk) that is 133.0 kg, has a 0.635 m radius, and is tur
Colt1911 [192]

Answer:

Ff = 839.05 N

Explanation:

We can use the equation:

Ff = μ*N

where <em>N</em> can be obtained as follows:

∑ Fc = m*ac   ⇒   N - F = m*ac = m*ω²*R    ⇒  N = F + m*ω²*R

then if

F = 32 N

m = 133 Kg

R = 0.635 m

ω = 95 rev /min = (95 rev / min)(2π rad / 1 rev)(1 min / 60 s) = 9.9484 rad /s

we get

N = 32 N + (133 Kg)*(9.9484 rad /s)²*(0.635 m) = 8390.53 N

Finally

Ff = μ*N = 0.10*(8390.53 N) = 839.05 N

3 0
3 years ago
What kind of gas is fart
mihalych1998 [28]
The answer is methamphetamine
3 0
3 years ago
Read 2 more answers
A train traveled 350km in 2.5h. what was the average speed of the train?
MaRussiya [10]
Speed equals distance divided by time, so 350 divided by 2.5 equals 140 kilometers per hour.
3 0
3 years ago
Read 2 more answers
Other questions:
  • How are surface temperature and length of year on a planet related to the planet’s distance from the Sun?
    12·1 answer
  • Item 13You have four $10 bills and eighteen $5 bills in your piggy bank. How much money do you have?
    11·1 answer
  • Hermal energy is a form of... A. Potential energy. B. Kinetic energy. C. Chemical energy.
    7·1 answer
  • 4. What relationship between gravitational
    9·2 answers
  • the velocity of a curling stone is due east. what will be the direction of the momentum of the curling stone as it moves?
    15·2 answers
  • a horizontal force of 50N acts on a body of mass 20KG initially at rest and displaces it by striking it along the entire 20m pat
    10·1 answer
  • The environment between the outer and inner nuclear membranes is most accurately referred to as the:
    11·1 answer
  • Match each chemical name with the correct chemical formula.
    10·1 answer
  • Am object of mass in a circular path of radius 100metres with the speed of 10metres/second.calculate the acceleration towards th
    13·1 answer
  • Suppose that a tiny space invader (m=0.47 kg) and the new space station orbit Earth at the same height from Earth’s surface. Whi
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!