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SOVA2 [1]
4 years ago
5

Explain the physical and chemical changes that occur from when you eat food until it is digested.

Physics
2 answers:
laiz [17]4 years ago
3 0
The physical changes are you are breaking down the food u eat and the chemical changes are when the enzymes in your stomach break down the food that you have already eaten
attashe74 [19]4 years ago
3 0
Physical change - Macro-molecules splits into smaller particles, and so their size would reduce

Chemical change - They splits into their monomers, like Proteins convert into amino acids, fats into glycerol and fatty acids etc

Hope this helps!
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If the accuracy in measuring the position of a particle increases, the accuracy in measuring its velocity will
astraxan [27]

Answer:

Therefore the answer is the precision in the speed DECREASES

Explanation:

In quantum mechanics, we have the uncertainty principle that establishes that when the accuracy of the position increases the accuracy  the speed decreases, being related by the expression

               Δx Δv ≥  h'/ 2

                h' = h/2π

Therefore the answer is the precision in the speed DECREASES

7 0
4 years ago
It the same child has a velocity of 2 m/s half-way down the slide, what is his kinetic energy?
Pani-rosa [81]

Answer:

\frac{1}{2}  \times m \times  {v}^{2}  \\  \frac{1}{2}  \times m \times  {2}^{2} \\ 2 \times m

I dont the child mass...you should substitute that value to (m)

then you can get your answer

5 0
3 years ago
Which of the following has no energy?
Readme [11.4K]
The correct answer is D: which is none of the above.
Hint: a wreckling ball contains pontential energy that acts like a pendulum

a pot of water contains pontential thermal energy
4 0
4 years ago
Read 2 more answers
A body A of mass 1.5kg, travelling along the positive x-axis with speed 4.5m/s, collides with another body B of mass 3.2kg which
Veronika [31]
We consider the momentum in the x-direction and apply the principle of conservation of momentum to form the equation:
m(A)u(A) = m(A)v(A) + m(B)v(B), since u(B) = 0 as B is at rest

We calculate v(A) using:
Vx = Vcos∅
Vx = 2.1cos(30)
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1.5 x 4.5 = 1.5 x 1.82 + 3.2v(B)
v(B) = 1.26 m/s

The deflection angle of B will be 30° above the positive x-axis, so:
v(B) = Vcos∅
V = 1.26 / cos(30)
V = 1.45 m/s

The velocity of B is 1.45 m/s
7 0
4 years ago
How does the weight of a rocket affect the height and distance?
Tems11 [23]
If the rocket it heavy and tall the distance wouldn't go very far but if the rocket was little and had no weight on it, it would go farther than the heavier one because of density/mass in the rocket
6 0
3 years ago
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