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goldfiish [28.3K]
3 years ago
8

Which equation represents an equilibrium system??

Physics
1 answer:
MrRissso [65]3 years ago
7 0

A. 2 S O 2, gas, plus O 2, gas, in equilibrium with 2 S O 3, gas.


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A ball is dropped from a tower that is 206 m high, How long does it take to reach the ground?
Slav-nsk [51]

It will take 6.42 s for the ball that is dropped from a height of 206 m to reach the ground.

From the question given above, the following data were obtained:

Height (H) = 206 m

<h3>Time (t) =? </h3>

NOTE: Acceleration due to gravity (g) = 10 m/s²

The time taken for the ball to get to the ground can be obtained as follow:

H = ½gt²

206 = ½ × 10 × t²

206 = 5 × t²

Divide both side by 5

t^{2}  = \frac{206}{5}\\\\ t^{2} = 41.2

Take the square root of both side

t = \sqrt{41.2}

<h3>t = 6.42 s</h3>

Therefore, it will take 6.42 s for the ball to get to the ground.

Learn more: brainly.com/question/24903556

7 0
3 years ago
Me ajudem, Por favor!!!!!!
zzz [600]

Answer:

a)  a=4\,\frac{m}{s^2}

b)  V(t)=4\,t\,+3

c)  V(1)=7 \,\frac{m}{s} \\

d)  Displacement = 22 m

e)  Average speed = 11 m/s

Explanation:

a)

Notice that the acceleration is the derivative of the velocity function, which in this case, being a straight line is constant everywhere, and which can be calculated as:

slope= \frac{15=3}{3-0} =4\,\frac{m}{s^2}

Therefore,  acceleration is a=4\,\frac{m}{s^2}

b) the functional expression for this line of slope 4 that passes through a y-intercept at (0, 3) is given by:

y=m\,x+b\\V(t)=4\,t\,+3

c) Since we know the general formula for the velocity, now we can estimate it at any value for 't", for example for the requested t = 1 second:

V(t)= 4\,t+3\\V(1)=4\,(1)+3\\V(1)=7 \,\frac{m}{s}

d) The displacement between times t = 1 sec, and t = 3 seconds is given by the area under the velocity curve between these two time values. Since we have a simple trapezoid, we can calculate it directly using geometry and evaluating V(3) (we already know V(1)):

Displacement = \frac{(7+15)\,2}{2} = 22\,\,m

e) Recall that the average of a function between two values is the integral (area under the curve) divided by the length of the interval:

Average velocity = \frac{22}{2} = 11\, \,\frac{m}{s}

3 0
3 years ago
HELP ME
sergij07 [2.7K]

Answer:

13,308 MAYBE IF IT ISN'T IM SO SORRY

Explanation:

6 0
2 years ago
Two identical bowling balls are moving down a bowling alley so that their centers of mass have the same velocity, but one just s
tamaranim1 [39]

Answer:

Rolling Ball

Explanation

7 0
2 years ago
A musician on a unicycle is riding at a steady 6.2 m/s while playing their well tuned oboe at an A above middle C (440 Hz). They
Verizon [17]

Answer:

The frequency of the beat is  f_t =  8Hz    

Explanation:

From the question we are told that

   The speed of the ride v = 6,2 m/s

   The frequency of the oboe is  f = 440Hz

    The temperature outside is  T = 27^oC

Generally the speed of sound generated in air is mathematically evaluated as

             v_s = 331  + 0.61 T

Substituting value

           v_s = 331 + 0.61 *27

           v_s = 347.47 \ m/s

The frequency of sound(generated by the musician on he park) getting to the musicians on the unicycle is mathematically evaluated as

                 f_a =  \frac{v_s }{v_s - v} f

substituting values

                f_a =  \frac{347.47 }{347.47  - 6.2} * 440                

               f_a =  448Hz

Since the musician on the park is not moving the frequency of sound (from the musicians riding the unicycle )getting to him is  = 440Hz

    The beat frequency these musician here is mathematically evaluated as

                  f_t = f_a - f  

So               f_t = 448 - 440  

                  f_t =  8Hz    

3 0
3 years ago
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