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3 years ago

Bro help me

1 answer:

4 0

Thermal energy is the sum of the energy of all the particles. That means that large objects at a low temperature (with slower moving particles) can have more energy than small objects with high temperatures (faster moving particles). The faster the particles, the more energy they can transfer.

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Is the image formed on the retina real or virtual

BabaBlast [244]

It is real, however it gets inverted in the retina and flips back in the cornea

8 0

3 years ago

Read 2 more answers

Air is heated in a glass bottle. The heat energy added to the air is 2.0 × 104 joules. What is the change in internal energy of

Liono4ka [1.6K]

The change in internal energy of the gas is $\Delta U = 2.0 \cdot 10^4 J$ .

In fact, the 1st law of thermodynamics states that the change in internal energy of a system is equal to the amount of heat given to the system (Q) plus the work done on the system (W):
$\Delta U = Q+W$
In this example, no work is done on the bottle so W=0, while the heat given to the system is $Q=2.0 \cdot 10^4 J$ , so the change in internal energy of the gas is
$\Delta U = Q = 2.0 \cdot 10^4 J$

4 0

3 years ago

Summarize one or more impacts of the physics of matter on aviation operations.

ipn [44]

Answer:

Answered

Explanation:

impacts of the physics of matter on aviation operations.

Thrust, drag and lift.

Thrust:

It is the force developed by airplane engines that cause it to pull forward. With the help of huge propellers of course attached to the wings.

Drag:

It is the resistive force on the plane caused by the friction between air and plane. Its magnitude depends upon surface area, speed and viscosity of the air.

Lift:

The drag produced is utilized such that one of its component acts opposite to the weight. This causes the plane to take flight and stay in air. Lift can be deduced using Bernoulli's principle.

Bernoulli's principle is equivalent to law of conservation of energy. Meaning it tries to keep the energy of a system constant. In doing so, it produces low pressure zone above the wing. Which causes a net upward force, lift.

3 0

4 years ago

An airplane awaiting departure is cleared to takeoff, its accelerates down a runway at 3.20m/ s2 for 32.8s until it finally lift

stich3 [128]

The final velocity before takeoff is 104.96 m / s.

<u>Explanation:</u>

The last velocity of a given object over some time defines the final velocity. The final velocity of the object is given by the product of acceleration and time and adding this product to the initial velocity.

To calculate the final velocity,

V = u + at

where v represents the final velocity,

u represents the initial velocity,

a represents the acceleration

t represents the time taken.

$v = 0 + (3.20)\times( 32.8)$

v = 104.96 m / s.

7 0

3 years ago

Question 3 An molecule adsorbed at one site on a surface. An oxygen molecule is adsorbed onto a small patch of the surface of a

Gennadij [26K]

Answer: The question has some details missing. Here is the complete question ; An molecule adsorbed at one site on a surface. An oxygen molecule is adsorbed onto a small patch of the surface of a catalyst. It's known that the molecule is adsorbed on 1 of 576 possible sites for adsorption (see sketch at right). Calculate the entropy of this system. Round your answer to 3 significant digits.

Explanation:

The stefan boltzmaan constant for entropy is given by ;

S = kInw

we are given that 576 total possible sites in which O2 can get absorbed

w = 576, k = 1.38 x 10-23J/k

plugging the values into the equation ;

S = 1.38 x 10-23J/k X In(576)

Entropy of the system = 8.79 X 10-23J/k

6 0

3 years ago