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Lisa [10]
2 years ago
9

Which best describes the energy conversion that happens when windmills are

Chemistry
1 answer:
BaLLatris [955]2 years ago
6 0

C. kinetic energy to electrical energy.

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when hydrogen atom absorbs a photon, and an electron moves level 1 to level 2, what happens to the energy of the atom?
pychu [463]

Answer:

When an electron is hit by a photon of light, it absorbs the quanta of energy the photon was carrying and moves to a higher energy state. One way of thinking about this higher energy state is to imagine that the electron is now moving faster, (it has just been "hit" by a rapidly moving photon).

Explanation: pls mark brainliest :))

7 0
2 years ago
!: (a) 20 cm: 80
RoseWind [281]

Answer:

THE LENGTH OF THE AIR COLUMN IS 9.5 CM

Explanation:

Taking the atmospheric pressure to be 760 mmHg;

When the capillary tube is held horizontally, the pressure of the tube is 760 mmHg

when the capillary tube is held vertically, the pressure increases by 4 cm = 40 mm

The new pressure of the tube is hence, 760 + 40 mmHg = 800 mmHg

Using the pressure forlmula;

P1 V1 = P2 V2

P1 A1 L1 = P2 A2 L2

where A1 and A2 is the area of the capillary tube and it is equal, it cancels out.

P1 l1 = P2 l2

l2 = P1 l1 / P2

l2 = 760 * 10 / 800

l2 = 9.5 cm

The length of the air in the tube is 9.5 cm.

5 0
3 years ago
How many valence electrons does lithium (Li) have available for bonding?
Marina CMI [18]
Lithium has 1 valence electron available for bonding. So its A.
6 0
3 years ago
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What is 95°F on the Celsius scale?
GarryVolchara [31]
ºC = ( ºF - 32 ) / 1.8

ºC = 95 - 32 / 1.8

ºC = 63 / 1.8

= 35 ºC

hope this helps!

5 0
3 years ago
Choose the correct missing coefficient to balance the following equation:
ira [324]

Answer:

the answer is 2 hope this helps

6 0
3 years ago
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