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
zalisa [80]
3 years ago
8

El coeficiente de variación de la resistencia con la temperatura del carbón es -0.0005/°c.Si la resistencia de una resistencia d

e carbón es de 1000 a0°c , determine su resistencia a 120°c
Physics
1 answer:
Doss [256]3 years ago
3 0

Answer:

 R (120) = 940Ω

Explanation:

The variation in resistance with temperature is linear in metals

           ΔR (T) = R₀ α ΔT

where α is the coefficient of variation of resistance with temperature, in this case α = -0,0005 / ºC

let's calculate

            ΔR = 1000 (-0,0005) (120-0)

            ΔR = -60 Ω

            ΔR = R (120) + R (0) = -60

            R (120) = -60 + R (0)

            R (120) = -60 + 1000

            R (120) = 940Ω

You might be interested in
Even though you praise your dog for sitting inside on his bed and chewing the bone you gave him, your dog insists on going outsi
qwelly [4]

Answer:

dog

Explanation:

5 0
3 years ago
A laboratory experiment produces a single-slit diffraction pattern on a screen. If the slit is made narrower, the bright fringes
AlekseyPX

Answer:

fringes move farther

Explanation:

The relation between the distance between the fringes is given by

y = Dλ/d

where, D is the distance between the plane of slit and the screen

d is the width of slit, λ is the wavelength of light used.

As the slit made narrower, that means d decreases, the value of y increases, that means the fringes move farther.

8 0
2 years ago
Which sports are similar to the sport that you’ve chosen? How are the sports similar? How are they different?
White raven [17]

Answer:

sports are not that simular they are just diferrent ok bud

Explanation:

3 0
3 years ago
When driving through standing water at high speed water may build up beneath the wheels and cause the vehicle to skid is commonl
allochka39001 [22]

Answer: Hydroplaning

Explanation: Hydroplaning is the skiding of a high speed vehicle when water builds beneath the wheels when driving through standing water.

It is usually caused by factors such as High speed,Standing water,deflated tyres. It is strongly recommended that when driving in standing water a driver should drive at a slow and steady speed and always to ensure that the vehicle tyres are adequately inflated with air,this is one of the causes of vehicular accidents during rainy season or flood.

8 0
3 years ago
A 1056-hertz tuning fork is sounded at the same time a piano note is struck. You hear three beats per second. What is the freque
REY [17]

Answer:

f_2 = 1053 Hz

or

f_2 = 1059 Hz

Explanation:

As we know that the beat frequency is given as

|f_1 - f_2| = f_{beat}

here we know that

f_1 = 1056 Hz

f_{beat} = 3 Hz

now we have

|1056 - f_2| = 3

now we have

1056 - f_2 = \pm 3

so we have

f_2 = 1053 Hz

or

f_2 = 1059 Hz

5 0
3 years ago
Other questions:
  • How fast is the relay stick moving relative to Ingrid
    15·1 answer
  • Light-rail passenger trains that provide transportation within and between cities are capable of modest accelerations. The magni
    12·1 answer
  • If you were to walk toward a Van der Graaff generator, the effect of its electrical field would get weaker as you walked towards
    15·1 answer
  • Where is the best place to put pfds while you are out on your boat?
    7·1 answer
  • The same 100-cm 3 lead block is carefully submerged in a container of mercury. One cm 3 of
    5·1 answer
  • Express in words AND mathematically the relationship between…<br> Period and frequency
    14·1 answer
  • Valence electrons determine an atom’s __________. a. mass c. atomic number b. chemical properties d. period Please select the be
    15·2 answers
  • Which does not describe the relationship between the nucleus and the electron cloud of an atom?
    14·1 answer
  • What description refers to fog?
    6·1 answer
  • What is an inexpensive, portable, and common way to assess body fat in the fitness industry?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!