What energy transformation is occurring in photosynthesis?

An Isentropic process is an idealised process which is adiabatic and reversible (in thermodynamics). There is no transfer of hea

Sophie [7]

Answer:

Explanation:

An isentropic process is one that does not change the entropy of the system. A reversible of the universe, and it is reversible because of that. Real processes increase the entropy of the universe, so trying to reverse them would decrease the entropy of the universe, which is impossible, so they are irreversible.

The Carnot cycle has 4 phases:

-Isotermal expansion of gas. In this process it takes heat from a hot source. It is a reversible process, but not isentropic.

-Adiabatic expansion. This one is isentropic, the entropy of the gas remains constant and it doesn't interact with the surroundings. The gas expands not by its own, but the machine makes it expand (it pulls on the gas). The gas cools down.

-Isotermal compression. Reversible but not adiabatic. The gas exchanges heat with the cold source, reducing its volume.

-Adiabatic compression. Adiabatic and isentropic. The machine compresses the gas, causing it to heat up.

3 0

3 years ago

From the edge of a cliff, a 0.46 kg projectile is launched with an initial kinetic energy of 1430 J. The projectile's maximum up

wel

Answer:

Explanation:

Given

mass of Projectile(m)=0.46 kg

Initial Kinetic Energy=1430 J

Maximum upward displacement from Launch point=150 m

$K.E.=\frac{mv^2}{2}$

$1430\times 2=0.46\times v^2$

v=78.85 m/s

and $H_{max}=\frac{v^2\sin ^2\theta }{2g}$

$150=\frac{(78.85)^2\sin ^2\theta }{2\times 9.8}$

$\sin \theta =0.687$

$\theta =43.39^{\circ}$

initial horizontal velocity $(v_x)=v\cos \theta$

$v_x=78.84\times \cos (43.39)=57.29 m/s$

Initial vertical velocity $(v_y)=v\sin \theta$

$v_y=78.85\times \sin (43.39)$

$v_y=54.16 m/s$

(c)vertical velocity at any instant=65 m/s

Since initial vertical velocity is 54.16 m/s

so 65 m/s will be acquired when projectile started falling below cliff

$v^2-u^2=2 a s$

$65^2-54.16^2=2\times 9.8\times s$

$s=65.90 m$

7 0

3 years ago

Determine the torque<br> produced by a perpendicular force of 75<br> N at the end of a 0.2 m wrench.

trasher [3.6K]

Answer:c

Explanation:

Because I took uty

7 0

3 years ago

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Use the drop-down menus to complete each statement.

Ivanshal [37]

Answer:

The amount of matter in an object is its mass

An action that has the ability to change an object's state of motion is a force

The rate at which velocity changes over time is acceleration

Explanation:

- Mass is a scalar quantity that gives a measure of the amount of matter contained in an object/substance. The SI unit of the mass is the kilogram (kg). Mass is an intrinsec property of an object, that means that it does not change when the object is moved in another location.

- A force is a vector quantity, that indicates an action exerted on an object that changes the state of motion of the object. It is measured in Newtons (N). According to Newton's second law, the acceleration of an object is equal to the net force exerted on the object divided by its mass:

$a=\frac{F}{m}$

- Acceleration is a vector quantity, which is equal to the ratio between the change in velocity of an object and the time interval taken for that change to occur. It is measured in meters per second squared ( $m/s^2$ ). Mathematically, it is defined as

$a=\frac{\Delta v}{\Delta t}$

3 0

3 years ago

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Plzz helpppp meee!!!!

spin [16.1K]

A=f/m
A=900/425
A=2.18

To determine acceleration you divide the force by the mass.

4 0

3 years ago

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