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Gala2k [10]
2 years ago
11

Calculate the surface area of a circle with radius 3.5 CM​

Physics
1 answer:
Sedaia [141]2 years ago
5 0

........loke above in the picture

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When a gas is cooled, the particles begin to move more______(Quickly/slowly). When the temperature drops below the____ (melting
bija089 [108]
Slowly; Boiling Point; Decrease; Decrease; Vibrate in place.

As temperature drops, so does thermal energy, and particle motion drops. The same trends in temperature, thermal energy, and motion applys to phases in decreasing order: gas>liquid>solid. The particle motion is always vibrations in place for solids because they are very tightly packed compared to liquids and gases.
6 0
3 years ago
You make a(n) _____ by fastening together usually perpendicular parts with the ends cut at an angle.
nadezda [96]

Answer:

Miter joint

Explanation:

Made by fastening together usually perpendicular parts with the ends cut at an angle

8 0
2 years ago
Two horizontal curves on a bobsled run are banked at the same angle, but one has twice the radius of the other. The safe speed (
iren [92.7K]

Answer:

safe speed for the larger radius track u= √2 v

Explanation:

The sum of the forces on either side is the same, the only difference is the radius of curvature and speed.

Also given that r_1= smaller radius

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r_2= 2r_1..............i

let u be the speed of larger radius curve

now, \sum F = \frac{mv^2}{r_1} =\frac{mu^2}{r_2}................ii

form i and ii we can write

v^2= \frac{1}{2} u^2

⇒u= √2 v

therefore, safe speed for the larger radius track u= √2 v

4 0
3 years ago
I understand what makes a kettle so efficient, but what are some improvements you can make to a kettle to increase it’s energy e
shusha [124]

Answer:

Reheat the cold cup of tea or coffee in the microwave. ...

Make iced tea or coffee with what's left. ...

Use a thermos for either tea or coffee.

3 0
3 years ago
C is correct just an FYI
belka [17]

Answer:

Huh?

Explanation:

3 0
2 years ago
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