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
qwelly [4]
3 years ago
6

Plzz Help easy quesion for 20 points Why does someone get burned if they touch an old filament bulb that has been on for a few h

ours? Plzz Help
Physics
2 answers:
fgiga [73]3 years ago
5 0
Incandescent lights get hot very quickly and therefore can easily burn u or catch fire
Sever21 [200]3 years ago
3 0

Answer:

In reality, the filament gets so hot it in a real sense bubbles off molecules and electrons. Now and again this material gathers as a dull spot at the highest point of the bulb. Eventually, the filament falls apart, gets frail, and breaks, subsequently finishing the life of the light. Lights radiate light by siphoning an electric flow through a dainty tungsten fiber. The filament warms and emits light. Over the long haul, the filament oxidizes and turns out to be increasingly fragile, until it splits up and the bulb goes out. ... Tungsten picks up obstruction as it warms.

Hope this helped :)

You might be interested in
A 15-ft3 tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank is rotated until the pressure insi
Nikolay [14]

Explanation:

Equation for energy balance will be as follows.

         \Delta E_{system} = E_{in} - E_{out}

        \Delta U = W_{in} - Q_{out}

Hence,    W_{in} = Q_{out} + mC_{v} (T_{2} - T_{1})

Therefore, we will calculate the final temperature as follows.

            \frac{P_{1}V}{T_{1}} = \frac{P_{2}V}{T_{2}}

       T_{2} = \frac{20 psia}{14.7}(638 R)

                   = 868.03 R

Now, we will calculate the mass as follows.

             m = \frac{P_{1}V}{RT_{1}}

                 = \frac{14.7 psia \times 15 ft^{3}}{0.3353 psi ft^{3}/lbm R \times 638 R}

                 = 1.031 lbm

Hence,

        W_{in} = Q_{out} + mC_{v} (T_{2} - T_{1})

Putting the values into the above equation as follows.

            W_{in} = Q_{out} + mC_{v} (T_{2} - T_{1})

    W_{in} = 20 Btu + 1.031 lbm (\frac{0.160 Btu}{lbm R})(735 - 540)R

            W_{in} = 655.2 Btu

Thus, we can conclude that work done by paddle wheel is 655.2 Btu.

6 0
3 years ago
Jana is observing a young autistic boy in a preschool classroom. Her job is to note each time the boy gets up from his chair wit
svp [43]
The answer is tallying
3 0
3 years ago
Why don't atoms get too close?
Lera25 [3.4K]

Answer:

I would have to go with A, or maybe....yea A

3 0
2 years ago
Read 2 more answers
Help<br> How much current will flow when a 120 V power supply is connected to a 30<br> resistor ?
AVprozaik [17]
Current= voltage divided by resistance
120/30=4
7 0
3 years ago
Which bone would a forensic anthropologist analyze to identify a victim as male or female?
noname [10]

the femmus is the answer
6 0
3 years ago
Other questions:
  • What information can be deduced by analyzing the graph?
    5·2 answers
  • 2. A car going 35 km/hr takes 23.0 s to come to a stop at the red light. What is it's
    5·1 answer
  • A bicyclist, initially at rest, begins pedaling and gaining speed steadily for 4.00s during which she covers 34.0m. What was her
    11·1 answer
  • 1. Complete the table with the appropriate equivalences
    10·1 answer
  • The air speed of a plane is defined as its velocity with respect to the surrounding air, or in other words how fast the plane wo
    8·1 answer
  • In a mall, a shopper rides up an escalator between floors. At the top of the escalator, the shopper turns right and walks 6.40 m
    12·1 answer
  • Help? 25 points and will give brainliest!
    13·1 answer
  • Using energy considerations, calculate the average force a 60.0-kg sprinter exerts backward on the track to accelerate from 2.00
    8·1 answer
  • A cylinder within a piston expands from a volume of 1.00 L to a volume of 2.00 L against an external pressure of 1.00 atm. How m
    10·1 answer
  • A heat pump receives heat from a lake that has an average winter time temperature of 6o C and supplies heat into a house having
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!