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Alex17521 [72]
4 years ago
11

Can all mixtures be separated

Physics
2 answers:
LiRa [457]4 years ago
8 0
Yep mixtures can be separated!
notsponge [240]4 years ago
6 0
Yes you can do it forever
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Na figura, um bloco de massa igual a 5Kg é abandonado em repouso em um plano inclinado. Supondo que os coeficientes de atrito es
Law Incorporation [45]

The figure mentioned on the question is in the attachment.

Answer: a) P_{x} = - 38.35N

b) F_{N} = 30.5 N

c) F_{f} = 27.45 N

d) a = - 13.16 m/s²

Explanation: A block on an inclined plane has 3 forces acting on it:

  • Force due to gravity F_{g} = m.g;
  • Normal Force due to the plane;
  • Force of Friction F_{f} = µ.N;

Since the plane is inclined, Normal Force is equal the y-component of the force due to gravity and Force of friction and the x-component of the force due to gravity are opposite forces.

The second attachment ilustrate the forces acting on the block.

Calculating:

A) The magnitude of the x-component of Force due to gravity:

According to the second image:

P_{x} = P.sinθ

P_{x} = 5.9.8.sin(36.8)

P_{x} = - 38.35 N

B) F_{N} = P_{y} = m.g.cosθ

F_{N} = 5.9.8.cos(36.8)

F_{N} = 30.5 N

C) F_{f} = 0.9.30.5

F_{f} = 27.45 N

D) For the acceleration, use Newton's Law: F_{R} = m . a

If there is movement, it is only on x-axis, so the net force is:

P_{x} - F_{f}  = m.a

- 38.35 - 27.45 = 5a

a = - 13.16 m/s²

The value of acceleration shows there is <u>no</u> <u>movement</u> on the x-axis due to the friction.

7 0
3 years ago
Select the correct answer. Samuel adds a teaspoon of salt to a glass of water. He notices that the salt disappears. Samuel takes
borishaifa [10]

Answer:

A

Explanation:

A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Therefore it can not be any of the other answers because the substance was water at first but now its salty water.

ps what kind of person would drink water after you put salt in it lol.

8 0
3 years ago
What is the pressure exerted by 0.801 mol of co2 in a 12 l container?
Svetlanka [38]
We assume that the gas is an ideal gas so we can use the relation PV=nRT. Assuming that the temperature of the system is at ambient temperature, T = 298 K. We can calculate as follows:

PV = nRT
P = nRT / V
P = (0.801 mol ) (0.08205 L-atm / mol-K) (298.15 K) / 12 L
P = 1.633 atm
8 0
3 years ago
henry heavyweight weighs 1450 n and stands on a pair of bathroom scales so that one scale reads twice as much as the other.
nikdorinn [45]
One scale will have a weight of 1087.50 and the next will be 362.50
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4 years ago
A symmetric double-convex lens has radii of curvature equal to 11 cm. It is made from glass that has an index of refraction equa
kondaur [170]

Answer:

Chicken Legs

Explanation:

So you fry the legs into chicken:)

8 0
3 years ago
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