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2 years ago

Which of the following describes a situation that would violate the law of entropy?

Physics

1 answer:

White raven [17]2 years ago

6 0

Answer:

B. An Iron Bar place in a room becomes cooler than its surroundings.

You might be interested in

If the period of a spring is 5 seconds what is the frequency

Scilla [17]

Answer:

C. 0.2 Hertz

Explanation:

The frequency of a spring is equal to the reciprocal of the period:

$f=\frac{1}{T}$

where

f is the frequency

T is the period

For the spring in this problem,

T = 5 s

therefore, the frequency is

$f=\frac{1}{5 s}=0.2 Hz$

7 0

3 years ago

please hurry In which state of matter has the LEAST kinetic energy? A) gas B) liquid C) plasma D) solid

anastassius [24]

Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy.

7 0

3 years ago

Read 2 more answers

What's is the kinetic energy of a .235-kg baseball thrown at 50.0m/s

san4es73 [151]

Answer:

34.51

Explanation:

k=1/2mv² is the kenetic energy equation to fill is in

k=[1/2(0.235)×50]²

6 0

2 years ago

How would the products of electrolysis be different is a solution of zinc chloride was used instead of molten zinc chloride?

kozerog [31]

Answer:

The electrolysis of zinc chloride shows how an ionic salt will conduct electricity when molten, but not when solid.

Explanation:

hope this helps!!!! GOOD LUCK!!!!

3 0

2 years ago

A football quarterback runs 15.0 m straight down the playing field in 3.00 s. He is then hit and pushed 3.00 m straight backward

algol [13]

Answer:

a) $v_{1}=14.29m/s\\v_{2}=9.25m/s\\v_{3}=6.36m/s$

b) $v=+9.97m/s$

Explanation:

From the exercise we know that

$x_{1} =15m, t_{1}=3s$

$x_{2} =-3m, t_{1}=1.74s$

$x_{3} =29m, t_{3}=5.20s$

From dynamics we know that the formula for average velocity is:

$v=\frac{x_{2}-x_{1} }{t_{2}-x_{1} }$

a) For the three intervals:

$v_{1}=\frac{x_{2}-x_{1} }{t_{2}-t_{1} }=\frac{(-3-15)m}{(1.74-3)s}=14.29m/s$

$v_{2}=\frac{x_{3}-x_{2} }{t_{3}-t_{2} }=\frac{(29-(-3))m}{(5.20-1.74)s}=9.25m/s$

$v_{3}=\frac{x_{3}-x_{1} }{t_{3}-t_{1} }=\frac{(29-15)m}{(5.20-3)s}=6.36m/s$

b) The average velocity for the entire motion can be calculate by the following formula:

$v=\frac{v_{1}+v_{2}+v_{3} }{n} =\frac{(14.29+9.25+6.36)m/s}{3}=+9.97m/s$

8 0

3 years ago