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elena55 [62]
3 years ago
10

Which substance will cool down the slowest during the night, and why?

Physics
1 answer:
Studentka2010 [4]3 years ago
5 0

Cool down the Slowest

B. Seawater, because it heats up slower and gives away heat slower than sand.

Read the question wrong the first time

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Liquefication occurs when
alexandr402 [8]

Answer: Liquefaction occurs when the structure of a loose, saturated sand breaks down due to some rapidly applied loading.

As the structure breaks down, the loosely-packed individual soil particles attempt to move into a denser configuration. Liquefaction most often occurs when three conditions are met:

loose, granular sediment or fill

saturation by groundwater

strong shaking

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3 years ago
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What happens when pressure is applied to a solid.​
weeeeeb [17]

Answer:

When the pressure surrounding a substance increases, the freezing point and other special points also go up. It is easier to keep things solid when they are under greater pressure. Generally, solids are more dense than liquids because their molecules are closer together.

Explanation:

5 0
4 years ago
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A parallel plate capacitor above has square plates 10 cm across on each side. The plates are 50 μm apart, and the electric field
IgorLugansk [536]

Answer:

a) ΔV = 20 V , b) Q = 35.4 10⁻⁹ C, c)  C = 1.77 10⁻⁹ F

Explanation:

a) The electric potential is

                 ΔV = E x

                 ΔV = 4.0 10⁵ 50 10⁻⁶

                  ΔV = 20 V

c) The capacity of a capacitor is

         C = ε₀  A / d

The area of ​​a square plate is

       A = L²

       A = 0.10²

       A = 0.01 m²

       L = 50mm = 50 10⁻⁶ m

Let's calculate

        C = 8.85 10⁻¹²  0.01 /50 10⁻⁶

        C = 1.77 10⁻⁹ F

b)  the charge is

             Q = C ΔV

             Q = 1.77 10⁻⁹ 20

              Q = 35.4 10⁻⁹ C

4 0
3 years ago
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Evan drives a golf ball with an initial velocity of 49 meters per second at an angle of 16 degrees own a flat driving range. How
alexandr1967 [171]

Answer:

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5 0
3 years ago
The tortoise and the hare are having a race over a course of length 0.52 km. The tortoise crawls along at a constant 0.075 m/s w
EastWind [94]

Answer:the hare slept for 1 hr 55minutes.

Explanation: distance is changed to meters = 520m

Speed=distance/time

Speed of tortoise is 0.075m/s=520m/t

Crops multiplying t= 520/0.075 = 6933.3 seconds.

Speed for hare 16.7m/s =260m/t

ie 260m is half of the distance.

t =15.56seconds

Therefore the time slept by the hare = 6933.3- 15.56= 6917.74 seconds.

Converting to hours = 1hr. 55minutes is the time the hare slept.

3 0
3 years ago
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