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Talja [164]
3 years ago
8

Why does water in hot springs always remain hot? Why doesn't it's thermal energy spread out?​

Physics
1 answer:
Alex_Xolod [135]3 years ago
6 0

Answer:

Explanation:

because of the tempature

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A plastic ball in a liquid is acted upon by its weight and by a buoyant force. The weight of the ball is 4 N. The buoyant force
Sauron [17]

Answer:

The acceleration is 2.448 meters per square second and is vertically upward.

Explanation:

The Free Body Diagram of the plastic ball in the liquid is presented in the image attached below. By Second Newton's Law, we know that forces acting on the plastic ball is:

\Sigma F = F - m\cdot g = m\cdot a (1)

Where:

F - Buoyant force, measured in newtons.

m - Mass of the plastic ball, measured in kilograms.

g - Gravitational acceleration, measured in meters per square second.

a - Net acceleration, measured in meters per square second.

If we know that F = 5\,N, m = 0.408\,kg and g = 9.807\,\frac{m}{s^{2}}, then the net acceleration of the plastic ball is:

a = \frac{F}{m} - g

a= 2.448\,\frac{m}{s^{2}}

The acceleration is 2.448 meters per square second and is vertically upward.

4 0
3 years ago
A thin ring of radius 73 cm carries a positive charge of 610 nC uniformly distributed over it. A point charge q is placed at the
kow [346]

Answer:

q = - 93.334 nC

Explanation:

GIVEN DATA:

Radius of ring  73 cm

charge on ring 610 nC

ELECTRIC FIELD p FROM CENTRE IS AT 70 CM

E  =  2000 N/C

Electric field due tor ring is guiven as

E = \frac{KQx}{[x^2+ R^2]^{3/2}}

E = \frac{9\time 10^9 \times 610\times 10^[-9} 0.70}{(0.70^2 + 0.73^2)^{3/2}}

E1 = 3714.672 N/C

electric field due to point charge q

E  =\frac[kq}{x^2}

E = \frac{9\times 10^9 \times q}{0.70^2}

E2 = 1.837\times 10^{10}\times q

now the eelctric charge at point P is

E = E1 + E22000 =  3714.672 + 1.837\times 10[10} \times q

solving for q

q = - 93.334 nC

7 0
4 years ago
Identify and draw the forces that act on the pencil. Be certain to draw each force at the correct location (the point at which t
Alekssandra [29.7K]

Answer:

Explanation:

find solution below

6 0
4 years ago
Hey can yall pls help me out in dis pls!!!
Gre4nikov [31]

Answer:

The molecules in a solid are all packed together and vibrating.

The molecules in a liquid are able to fit into a space, because they aren't packed together, they are more apart from each other.

The molecules in a gas are even further apart from each other, and able to move way more freely.

Explanation:

Solid things are solid because of the molecules being so packed together.

Liquid things are liquid because of there being not as many in one space, it's more spread out.

Gas things are gas because of the molecules moving fast and there aren't as many so it's more spread out than other things.

I hope this helped!

8 0
3 years ago
Which of the following best describes this image?
katrin [286]

Answer:

high accuracy low precision.

Explanation:

7 0
3 years ago
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