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3 years ago

Why is it recommended that windows face north in Alice Springs, Australia for passive solar heating?

1 answer:

4 0

The Passive solar heating uses free free heating direct from the sun to reduce the estimated forty percent of energy consumed in the average australian home for space heating and cooling. many heating and cooling design objectives overlap but different emphasis is required depends on your climate need.

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Which of these is an example of pseudoscience? chemistry astrology astronomy mathematics

Contact [7]

Astrology a common belief I. Society today that says the alignment of celestial bodies have some effect on the behaviour or future of a persons life. The opposite, in fact, has been proven in real science that the alignment of celestial bodies has no effect on how people act or on their future

6 0

3 years ago

What is the resistance of a 3.5m copper wire that has a cross-sectional area of 5.26 x 10-6 m2?

mestny [16]

R=ρ $\frac{L}{A}$

Where, R is resistance

ρ is resistivity,

L is length and

A is cross sectional area

Given, L= 3.5m

A=5.26 x 10⁻⁶ m²

ρ=1.68×10⁻⁸ ohms m

∴ R= $\frac{(1.68)(3.5)}{5.26*100}$

⇒ R=1.11×10⁻² ohms

3 0

3 years ago

Read 2 more answers

The only force acting on a 2.9 kg canister that is moving in an xy plane has a magnitude of 7.5 N. The canister initially has a

Elodia [21]

Answer:15.66 J

Explanation:

mass of block $\left ( m\right )=2.9 kg$

Force magnitude=7.5 N

Initial velocity = $3.9\hat{i} m/s$

Final velocity= $5.1 \hat{j} m/s$

Initial Kinetic Energy= $\frac{1}{2}mv^2$

= $\frac{1}{2}\times 2.9\times 3.9^2=22.05 J$

Final Kinetic Energy= $\frac{1}{2}mv^2$

= $\frac{1}{2}\times 2.9\times 5.1^2=37.714 J$

Work Done =Final -Initial Kinetic energy=37.714-22.056=15.66 J

7 0

4 years ago

Which list contains only objects that orbit the sun in our solar system?

Andre45 [30]

The answer would be C.

3 0

4 years ago

Every year, new records in track and field events are recorded. Let's take an historic look back at some exciting races.

Hitman42 [59]

First we need to turn Aouita's time for the race into seconds. There are 60 seconds in a minute, so 7 minutes and 29.45 seconds is (7 x 60) + 29.45 = 449.45. He ran 3000 meters in that time, so his average speed was 3000 meters divided by 449.45 seconds. 3000 / 449.45 = 6.67 m/s. So, on average, he covered 6.67 meters (more than 21 feet!) during each second of the race.

4 0

3 years ago