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Olenka [21]
3 years ago
9

You are studying sunlight passing through the top layer of the atmosphere of venus to learn about its composition. what type of

spectrum would you see?
Physics
1 answer:
qaws [65]3 years ago
8 0
You would observe an absorption line spectrum.
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A rotating fan completes 1200 revolutions every minute. Consider the tip of a blade, at a radius of 0.15 m. (a) Through what dis
olga55 [171]

Answer:

(a) 0.942 m

(b) 18.84 m/s

(c) 2366.3 m/s²

(d) 0.05 s

Explanation:

(a) In one revolution, it travels through one circumference, 2πr = 2 × 3.14 × 0.15 m = 0.942 m.

(b) Its frequency, f, is 1200 rev/min = \dfrac{1200}{60}rev/s = 20 rev/s.

Its angular frequency, ω = 2πf = 2π × 20 = 40π

The speed is given by

v = ωr = 40π × 0.15 = 6π = 18.84 m/s

(c) Its acceleration is given by, a = ω²r = (40π)² × 0.15 = 2366.3 m/s²

(d) The period is the inverse of the frequency because it is the time taken to complete one revolution.

T = \dfrac{1}{f}

T = 1/20 = 0.05 s

6 0
2 years ago
If the mass of an object is 10 Kg and it experiences a Net force of 60 Newtons. What is the acceleration?
Solnce55 [7]

Answer:

6 m/s^2

Explanation:

F = ma

60N = (10 kg)a

a = 6m/s^2

3 0
2 years ago
A body that offers little resistance to the movement of free electrons from one point to another is a/an
Oksana_A [137]
It should be an Electrical conductor, since conductors allow for movement of electrons  from one point to another. 
3 0
3 years ago
Read 2 more answers
Does the construction of a high building slow down the rotation of the earth
omeli [17]
No, the building's size in comparison to the earth would have no change or change so increadibly miniscule, like if you were told to spin slowly and an and was placed on top of your head
5 0
3 years ago
Choose the pair of elements that will most likely have the greatest ionic character.
soldi70 [24.7K]

Answer:

K and N

Explanation:

Ionic character depends on the electronegativity difference between the bonding elements. The greatest the elctronegativity diffference the greatest the ionic character. The electronegativity difference between K and N is the greatest among the four options as N is one of the most electronegative elements.

7 0
2 years ago
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