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
nasty-shy [4]
2 years ago
9

How does cool roofs help the co2?

Physics
1 answer:
Hoochie [10]2 years ago
7 0

Answer:

These cool down not only the house but even helps with the potential of canceling the heating effect of up to two years of worldwide carbon dioxide emissions. Which would over help the co2 rates.

You might be interested in
a car travels at 50 m/s for first 20 seconds , 30 m/s for next 30 seconds and finally 20 m/s for next 10 seconds . find its aver
kaheart [24]

The average speed traveled by car is 35m/s.

1^{st} case

  • Speed=50m/s\\
  • Time =20s

       Distance = speed*time= 50*20=1000m

2^{nd} case

  • Speed=30m/s
  • Time=30s

       Distance=30*30=900m

3^{rd} case

  • Speed=20m/s
  • Time=10s

       Distance=20*10=200m

Now, The total distance=(1000+900+200)m=2100m

        Total time=(20+30+10)s=60s

       Average distance =\frac{total distance}{total time} = \frac{2100}{60}=35m/s

To learn more about Average speed, refer to:

  • brainly.com/question/21097620

3 0
2 years ago
A square coil of wire of side 3.95 cm is placed in a uniform magnetic field of magnitude 2.25 T directed into the page as in the
Len [333]

Answer:

Explanation:

In this case we shall calculate rate of change of flux in the coli to calculate induced emf .

Flux through the coil  = no of turns x area x magnetic field perpendicular to it

=34 x  2.25 x (3.95 )²x 10⁻⁴ Weber

= 1193.4  x 10⁻⁴Weber

Final flux through the coil after turn by 90°

= 1193.4 x 10⁻⁴ cos 90 ° =0

Change of flux

= 1193.4 x 10⁻⁴ weber.

Time taken = 0.335 s .

Average emf= Rate of change of flux

= change in flux / time

=1193.4 x 10⁻⁴ / .335

= 3562.4 x 10⁻⁴

356.24 x 10⁻³

=356.24 mV.

Current induced = emf induced / resistance

= 356.24/.780

= 456.71 mA.

8 0
3 years ago
) A physics student wants to measure the stiffness of a spring (force required per cm stretched). He knows that according to Hoo
Maurinko [17]

Answer:

Explanation:

find the solution below

3 0
3 years ago
What is nuclear energy​
suter [353]

Answer:

Nuclear energy, also called atomic energy, energy that is released in significant amounts in processes that affect atomic nuclei, the dense cores of atoms. It is distinct from the energy of other atomic phenomena such as ordinary chemical reactions, which involve only the orbital electrons of atoms.

Explanation:

7 0
3 years ago
Read 2 more answers
What isthe correct 1/4=20%
anzhelika [568]

Answer:

25

Explanation:

5 0
3 years ago
Other questions:
  • A single slit forms a diffraction pattern, with the first minimum at an angle of 40.0° from central maximum, when monochromatic
    8·1 answer
  • Light with a wavelength of 576 3. ×10−9 m passes through two slits and forms an interference pattern on a screen 8.85 m away. if
    10·1 answer
  • A 24.1 N solid sphere with a radius of 0.151 m is released from rest and rolls, without slipping, 1.7 m down a ramp that is incl
    12·1 answer
  • The North Pole of a magnet points toward the geographic North Pole, yet like poles repel. Explain this seeming discrepancy
    12·1 answer
  • Assume the light wave directed at the paper is white light and the paper contains pigments that absorb the wavelengths of red-or
    6·2 answers
  • What is the distance from one crest to the next crest?
    10·1 answer
  • I need help finding the acceleration.
    11·2 answers
  • What makes psychology a science
    10·1 answer
  • Which is the independent variable in the graph of the U.S. population 1800-1900?
    10·1 answer
  • A wave created by shaking a rope up and down is called a.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!