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3 years ago

Why do Sesame Oil and Dr Pepper react in a exploding soda? Just like Diet Coke and Mentos.

Physics

1 answer:

galben [10]3 years ago

8 0

Its the compounds inside both liquids that react to eachother negativly idk how else to put it

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Please I need the answer right now will mark you brainliest

Dmitrij [34]

Answer:

Explanation:

what do u need help with

3 0

3 years ago

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a bicyclist travels with an averahe velocity of 15km/h north, for 20 minutes .what is his displacement ?

Lunna [17]

Explanation:

velocity = 15 km/hr = 15×1000m / 60×60s

= 4.17 m/s

time= 20 min= 20 × 60s

= 1200s

displacement =?

we know that,

V = D / t

or, 4.17 = D / 1200

or, D = 4.17 × 1200

or,D = 5004 m

7 0

3 years ago

The atomic radii of Li+and O2−ions are 0.068 and 0.140 nm, respectively.(a) Calculate the force of attraction between these two

sasho [114]

Answer:

Part a)

$F_{attraction} = 1.06 \times 10^{-8} N$

Part b)

$F_{repulsion} = 1.06 \times 10^{-8} N$

Explanation:

Part a)

Equilibrium distance is the distance between two centers when two ions just touch each other

So here we will have

$r = 0.068 nm + 0.140 nm$

$r = 0.208 nm$

Now Force of attraction between two ions is given by Coulomb's law

$F = \frac{kq_1q_2}{r^2}$

$F = \frac{(9\times 10^9)(1.6 \times 10^{-19})(2\times 1.6 \times 10^{-19})}{(0.208\times 10^{-9})^2}$

$F_{attraction} = 1.06 \times 10^{-8} N$

Part b)

At equilibrium separation net force between two ions must be zero

$F_{attraction} = F_{repulsion}$

so the attraction force and repulsion force must be of equal magnitude

so we have

$F_{repulsion} = 1.06 \times 10^{-8} N$

6 0

3 years ago

14. Which of the following ideas is NOT a part of cell theory?

AnnZ [28]

Cell theory states that all living things contain at least one cell, and there are certainly more types of living things than simply plants and animals. For example bacteria and fungi.

So your answer would be A.

5 0

3 years ago

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Suppose you are taking a walk one day when you see a tree branch snap at its base and begin to rotate downward with the break ne

Naya [18.7K]

Answer:

α = 3.27 rad/s²

Explanation:

Given that

L= 3 m

Lets take mass of tree = m kg

The torque to mass m = m g .L

The mass moment of inertia of tree ,I

I = mL² kg.m²

We know that

τ = I α

m g .L = mL² .α

α= g/L

Now by putting the value

$\alpha =\dfrac{ 9.81}{ 3}\ rad/s^2$

α = 3.27 rad/s²

No we can find the mass of the from the above information because angular acceleration is not depend on the mass of tree.

6 0

4 years ago