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Lynna [10]
3 years ago
9

What is the intermingling of one substance within another

Physics
1 answer:
Dmitrij [34]3 years ago
5 0
The intermingling of substances through the natural movement of particles is known as diffusion :P
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A gymnast's backflip is considered more difficult to do in the layout (straight body) position than in the tucked position. Why?
spin [16.1K]

Answer:

The body's rotational inertia is greater in layout position than in tucked position. Because the body remains airborne for roughly the same time interval in either position, the gymnast must have much greater kinetic energy in layout position to complete the backflip.

Explanation:

A gymnast's backflip is considered more difficult to do in the layout (straight body) position than in the tucked position.

When the body is straight , its moment of rotational inertia is more than the case when he folds his body round. Hence rotational inertia ( moment of inertia x angular velocity ) is also greater. To achieve that inertia , there is need of greater imput of energy in the form of kinetic energy  which requires greater effort.

So a gymnast's backflip is considered more difficult to do in the layout (straight body) position than in the tucked position.

6 0
3 years ago
In a chemical reaction, activation energy increases the __________ of the reactants. This outcome causes the particles to collid
atroni [7]

The answer is;

first blank-

A

Second blank-

B


Activation energy raised the potential energy of reactants to begin a chemical reaction. This requires an initial input of energy into the reaction before the reaction can then proceed spontaneously. That delta G of the activation energy is usually positive. This activation energy destabilized the stable  bonds of the reactants so they can form new bonds. This results to a transition state that is a high-energy state.


4 0
3 years ago
Read 2 more answers
The planet Jupiter orbits the Sun at a nearly constant speed. Which of the following statements are true?
RoseWind [281]

Answer:

a. There is a force on Jupiter toward the center of the orbit.

d. Jupiter is accelerating toward the center of the orbit.

Explanation:

Let us look at each of the choices one by one:

a. There is a force on Jupiter toward the center of the orbit.

True. The sun being at the center of Jupiter's orbit, pulls the planet towards it (providing the centripetal force), therefore, there exists a force on Jupiter toward the center of the orbit.

b. There is a force on Jupiter pulling it out from the center of the orbit.

Nope. The centripetal force due to gravity acts towards the center of the orbit.  

c. There is a force on Jupiter in the direction of its motion.

Nope. There exists only the centripetal force acting towards the center of the orbit,

d. Jupiter is accelerating toward the center of the orbit.

Yes. Because of the centripetal force gravity provides, Jupiter is accelerating towards the center of the orbit, but it does not fall in because it has velocity perpendicular to the direction of its acceleration.

6 0
2 years ago
20 takeaways about fitness​
Anna35 [415]

Answer:

1 exercise 2 walking daily 3 practice jogging 4 drinking large amounts of water 5 eating vegetables and fruit 6 minimal of sugars 7 minor 8 Adequate sleep from 6 to 8 hours 9

Explanation:

I don't know more!

Explanation:

5 0
3 years ago
Use the information below for the next five questions:
sergey [27]

Answer:  Please see answer in explanation column.

Explanation:

Given that

v≈(331 + 0.60T)m/s

where Temperature, T =  14°C

v≈(331 + 0.60 x 14)m/s

v =331+ 8.4 = 339.4m/s

In our solvings, note that

f= frequency

 λ=wavelength

L = length

v= speed of sound

a) Length of the pipe is calculated using the fundamental frequency formulae that

f=v/2L

Length = v/ 2f

= 339.4m/s/ 2 x 494Hz ( s^-1)= 0.3435m

b) wavelength of the fundamental standing wave in the pipe

L = nλ/2,

λ = 2L/ n

λ( wavelength )= 2 x 0.3435/ 1

= 0.687m

c) frequency of the fundamental standing wave in the pipe

F = v/  λ

= 339.4m/s/0.687m=

494.03s^-1 = 494 Hz

d) the frequency in the traveling sound wave produced in the outside air.

This is the same as the frequency in the open organ pipe = 494Hz

e)The wavelength of the travelling sound wave produced in the outside air is the same as the wavelength calculated in b above = 0.687m

f) To play D above middle c . the distance is given by

L =v/ 2 f

= 343/ 2 x 294

=0.583m

7 0
3 years ago
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