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
Anuta_ua [19.1K]
3 years ago
13

Which were products that contained cfcs before 1987?

Physics
1 answer:
Doss [256]3 years ago
6 0
The answer is refrigerants
You might be interested in
A 13.4-mH inductor carries a current i = <img src="https://tex.z-dn.net/?f=I_%7Bmax%7D" id="TexFormula1" title="I_{max}" alt="I_
Digiron [165]

The voltage across an inductor ' L ' is

V = L · dI/dt .

I(t) = I(max) sin(ωt)

dI/dt = I(max) ω cos(ωt)

V = L · ω · I(max) cos(ωt)

L = 1.34 x 10⁻² H

ω = 2π · 60 = 377 /sec

I(max) = 4.80 A

V = L · ω · I(max) cos(ωt)

V = (1.34 x 10⁻² H) · (377 / sec) · (4.8 A) · cos(377 t)

<em>V = 24.25 cos(377 t)</em>

V is an AC voltage with peak value of 24.25 volts and frequency = 60 Hz.

6 0
4 years ago
A car drives for 30 km with a speed of 30m/s. How much time does it take the car to travel this distance?
Artist 52 [7]

                   Time  =  (distance)  /  (speed)

                           =  (30 km)  /  (30 m/s)

                           =  (30,000 m)  /  (30 m/s)

                           =  (30,000 / 30)  sec

                           =      1,000 seconds

                           =      16 minutes  40 seconds  
6 0
3 years ago
How does an airplane's kinetic energy and potential energy change as it takes off and lands
Hitman42 [59]
Mostly gravity voloume and sometimes what it is made of

3 0
3 years ago
Read 2 more answers
The rate at which energy is transferred is called
makvit [3.9K]

Answer:

The rate at which energy is transferred is called power and the amount of energy that is usefully transferred is called efficiency.

6 0
3 years ago
Read 2 more answers
The decomposition of water into hydrogen gas H2 and oxygen gas O2 can be modeled by the balanced chemical equation
Volgvan

2H2O->2H2+O2


This balanced chemical equation represents the decomposition of water into hydrogen gas and oxygen gas



3 0
4 years ago
Read 2 more answers
Other questions:
  • I will give you branilest
    15·1 answer
  • A security guard walks at a steady pace, traveling 190 m in one trip around the perimeter of a building. It takes him 260 s to m
    7·1 answer
  • Rob measures the solubility of three different salts in water at 22°C.
    6·2 answers
  • A centrifuge rotor (hollow disk) is rotating at 10,000 rpm is shut off and brought to rest by a constant frictional torque of 1.
    15·1 answer
  • When a 4kg mass is hung vertically on a light spring, the spring stretches 2.5cm. A.) How far will the spring stretch if an addi
    12·1 answer
  • Which object has unbalanced forces acting on it
    11·1 answer
  • A gas was compressed to 30.0 mL at 1.5 atm from 65<br>mL. What was the original pressure?​
    8·1 answer
  • Elizabeth .........................................................................
    10·2 answers
  • What is the phase of the moon when the moon is positioned between the sun and earth?
    8·1 answer
  • During the course of a concert, the temperature of a pipe organ gradually increases. As a result, the frequency of the sound fro
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!