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valkas [14]
3 years ago
6

12 points. Change of state:

Physics
1 answer:
seraphim [82]3 years ago
3 0
Sublimation: A) an ice cube left in a freezer for a month becomes smaller.

Condensation: B) drops of water appear on the side of a glass of ice water.

Evaporation: C) a rainy morning turns sunny, and puddles disappear from a sidewalk.
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When do sunspots disappear?
dedylja [7]

Answer:

In 5 years or so, the sun will be awash in sunspots and more prone to violent bursts of magnetic activity.

Explanation

once the magnetic field weakens the area and cold plasma enters the area of the sunspot

8 0
3 years ago
At the time of the founding of the country, most Americans worked as
STatiana [176]

Answer:

Farmers

Explanation:

At the time of founding our country most soldiers in the revolutionary war were farmers who were inexperienced.

4 0
3 years ago
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Help me please!!!
lilavasa [31]
Both planets are similar in shape and have a rocky surface. Not sure about the phases though
7 0
3 years ago
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Suppose that you are headed toward a plateau 55 meters high. If the angle of elevation to the top of the plateau is 40degrees​,
Iteru [2.4K]

Answer:

x=65.55m

Explanation:

Let x be the distance to the shore

From trigonometry properties:

tan(40^{o} )=\frac{55m}{x} \\x=\frac{55m}{tan(40^{o} )} \\x=65.55m

3 0
3 years ago
calculate the frequency and time period of sound wave of 35 m wave length propagating at a speed of 3500m/s​
zheka24 [161]

Answer:

Frequency = 100 Hz

Time period = 0.01 sec

Explanation:

f= 3500/35 = 100

T = 1/f = .01

5 0
3 years ago
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