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slavikrds [6]
3 years ago
5

Frank wrote several statements to summarize the relationship between the first and second laws of thermodynamics.

Physics
2 answers:
Gekata [30.6K]3 years ago
6 0
The second law of thermodynamics states that the total entropy of a system does not decrease with time. This is because not all heat can be converted into useful work. Therefore, the best option is the 2nd choice.
The other choices relate to conservation of energy and the first law of thermodynamics.
Kaylis [27]3 years ago
3 0
First law is Conservation of Energy

Second is that entropy of an isolated system will always increase with time.

Entropy is the change of disorder through time. The best statement which relates to the 2nd law is C. Thermal energy flows from areas of higher to lower temperature
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Which name is given to the type of friction that objects falling through air experience?
Pani-rosa [81]

Some call it "air resistance", and others just call it "drag".

4 0
3 years ago
Read 2 more answers
Two blocks, of mass m and 2m, are initially at rest on a horizontal frictionless surface. A force F is exerted individually on e
Anon25 [30]

The block has the greatest average power provided is bock m.

<h3>What is instantaneous power?</h3>
  • This is the product of force and velocity exerted on an object.

Mathematically instantaneous power is calculated as;

P = Fv

where;

  • F is the applied force
  • v is the velocity

Both blocks (m and 2m) will experience the same force but different velocity.

The smaller block (m) will experience greater velocity.

Thus, the block has the greatest average power provided is bock m.

Learn more about instantaneous power here: brainly.com/question/8893970

7 0
2 years ago
If you decrease the length of a wire, what effect will it have on resistance
attashe74 [19]
As the length increases, resistance increases, as a result current decreases.
7 0
3 years ago
Desde el punto A sale un vehículo a 80 km/h al mismo tiempo sale un ciclista a 20km/h ¿a qué distancia se encuentra uno del otro
stiv31 [10]

Answer:

Distance between them after 5 hours is 300 km.

Explanation:

From point A a vehicle leaves at 80 km / h at the same time a cyclist leaves at 20 km / h at what distance is they from each other after 5 hours.

Distance traveled by A in 5 hours = speed x time = 80 x 5 = 400 km

Distance traveled by B in 5 hours = speed x time = 20 x 5 = 100 km

The distance between them after 5 hours =  400 - 100 = 300 km

4 0
3 years ago
A hand moves a block vertically upward. Its speed slows down as it moves up (it is decelerating). The work done by gravity on th
Nataly_w [17]

Answer:

a. negative

b. zero

Explanation:

work is the change in the energy of a system due to external forces

work is done when a force moves a load through a distance in the direction of the force

The work done by a force on a  system is positive when the force  and the force displacement point  in the same direction and negative  when they point in opposite  directions

in the scenario we are considering in the question, the force (the hand) moves the block vertically upwards but the displacement of the block reduces (in the opposite direction) since it decelerates. as such the work done by gravity on the block is negative.

the work done on the block is zero if the system consists of the block and the earth because there is no gravitational force exerted on the system

5 0
3 years ago
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