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inessss [21]
2 years ago
7

Based on the solubility graph. what effect does increasing the temperature of these substances have in their solubility? does th

is suggest that these substances are solids or gases? explain
PLEASE HELP

Physics
1 answer:
Thepotemich [5.8K]2 years ago
8 0

Answer:

gases because they have a straight line and if it was solid it would have a flat line to show it melt first before the temperature increase.

Hope it helps

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The key to making a concise mathematical definition of escape velocity is to consider the energy. If an object is launched at it
aleksklad [387]

Answer:

The total Mechanical energy will be zero

Explanation: Escape velocity is the velocity required by a free object in order to overcome the impact of the force of gravity. The total mechanical energy of an object is the total energy possessed by an object which includes its kinectic and potential energy.

since the object is moving at an escape velocity which is 11.2m/s the object will be assumed to be weightless

Etotal = kinetic energy + potential energy

kinetic energy= 1/2*M*V*V

Potential energy=MGH

Etotal=1/2*0*11.2*11.2+0*0*0

Etotal=0+0

Etotal=0.

3 0
3 years ago
A particle moves along a straight line. Its position at any instant is given by x = 32t− 38t^3/3 where x is in metre and t in se
Rudik [331]

Answer:

The acceleration of the object is -69.78 m/s²

Explanation:

Given;

postion of the particle:

x = 32t - 38\frac{t^3}{3} \\\\

The velocity of the particle is calculated as the change in the position of the  particle with time;

v = \frac{dx}{dt} = 32 - 38t^2\\\\when \ the \ particle \ is \ at \ rest, \ v = 0\\\\32-38t^2 = 0\\\\38t^2 = 32\\\\t^2 = \frac{32}{38} \\\\t = \sqrt{\frac{32}{38} } \\\\t = 0.918 \ s

Acceleration is the change in velocity with time;

a = \frac{dv}{dt} = -76t\\\\recall , \ t = 0.918 \ s\\\\a = -76(0.918)\\\\a = -69.78 \ m/s^2

4 0
2 years ago
Use the illustration to answer the question :)
Naily [24]

Answer:

This type of heat transfer occurs inside materials, typically solid materials. The heat from the fire is passed from molecule to molecule along the length of the material. The fire will generally follow the heat or sometimes the heat from conduction may cause a new fire to ignite elsewhere. The conduction is happening in the walls of the fireplace

Explanation:

SKATE OR DIE> LOSER

4 0
2 years ago
Explain the cause of atmospheric pressure
SVETLANKA909090 [29]
Atmospheric pressure is caused by the weight of the air above you. It seems silly , but you have to rememeber that the air is full of molecules of different elements ( nitrogen , oxygen , CO2 , etc ... ) and the have atomic weight.
Thats why there is less pressure on top of you when you are at greater altitudes , there is less air above you.

Hope it helps !
It would be awesome if you marked this awnser as Branliest! Thx :)
4 0
3 years ago
What is your displacement if you walk 100 m north, 20 m east, 30 m south, 50 m west, and then 70 m south?
velikii [3]
Displacement isn't total distance traveled, it's the distance from the original starting point. So the 70 meters South in addition to the 30 meters South would decrease the distance to the North. It would then, instead of being 100 meters North and 100 meters South, there would be zero displacement. Then you take 50-20 to get 30 meters West. Your final displacement is 30 meters.
4 0
3 years ago
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