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drek231 [11]
4 years ago
6

You need to remove a broken light bulb from a lamp. without a pair of gloves, you are likely to cut yourself on the jagged glass

. suddenly, it occurs to you that you can use a cut potato to remove the light bulb from the socket. you have just demonstrated ________.
Physics
1 answer:
mojhsa [17]4 years ago
5 0
<span>You have just demonstrated an insight learning. Internal insight occurs if one learned a new way without the help of environmental factors. In here, what the person initially learned that if one saw a broken light bulb from a lamp, he can be cut through the jagged glass if one does not wear a pair of gloves. And maybe because at the moment, the person could not find one, he felt using a cut potato to pick up the pieces of the broken lamp. This is a demonstration of insight learning. The person found a way to pick up the pieces of the broken lamp by using his instinct at the moment. The person is not influenced by an outside source to tell him to use a potato. </span>
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In the 2016 Olympics in Rio, after the 50 m freestyle competition, a problem with the pool was found. In lane 1there was a gentl
Gnom [1K]

A) -0.15 s

First of all, we need to velocity of the swimmer in absence of current. This is given by:

v_0 = \frac{d}{t}

where

d = 50.0 m

t = 25.0 s

Substituting,

v_0 = \frac{50.0}{25.0}=2.0 m/s

In lane 1, the velocity of the current is

v_c = +1.2 cm/s = +0.012 m/s

where the + sign means it is in the same direction as the swimmer. Therefore, the net velocity of the swimmer in lane 1 will be

v=v_0+v_c = 2.0 + 0.012 = = 2.012 m/s

And so, the time the swimmer will take to cover the 50.0 m will be:

t=\frac{d}{v}=\frac{50.0}{2.012}=24.85 s

So, the time would change by

\Delta t = 24.85 - 25.0 = -0.15 s

which means that the swimmer will be 0.15 s faster.

B) +0.15 s

To solve this part, we just need to consider that the current goes in the opposite direction, so its velocity actually is:

v_c = -12 cm/s = -0.012 m/s

where the negative sign indicates the opposite direction.

So, the net velocity of the swimmer in lane 8 is

v=v_0+v_c = 2.0 - 0.012 = = 1.988 m/s

And so, the time the swimmer will take to cover the 50.0 m will be:

t=\frac{d}{v}=\frac{50.0}{1.988}=25.15 s

So, the time would change by

\Delta t = 25.15 - 25.0 = +0.15 s

which means that the swimmer will be 0.15 s slower.

6 0
4 years ago
Select all that apply. which of the following astronomers supported the sun-centered system? tycho brahe johannes kepler coperni
Alex73 [517]
<h3 />

-Tycho Brahe and

-Ptolemy

<h3 />
  • The sun is a hot ball of glowing gases which is a star whose gravity holds the solar system together and also keeping all the planet and smallest particles of debris in its orbit.
3 0
3 years ago
Read 2 more answers
Calculate the acceleration of a bus that goes
Svet_ta [14]

The acceleration of the bus is 1.11 meters per second square to the direction of motion

Explanation:

Acceleration is the rate of change of velocity

The formula of the acceleration is a=\frac{v_{2}-v_{1}}{t} , where

  • v_{1} is the initial velocity
  • v_{2} is the final velocity
  • t is the time

A bus that goes  from 10 km/h to a speed of 50 km/h in 10 seconds

→ v_{1} = 10 km/h

→ v_{2} = 50 km/h

→ t = 10 seconds

Change the unite of the time from seconds to hour

→ 1 hour = 60 × 60 = 3600 seconds

→ 10 seconds = \frac{10}{3600}=\frac{1}{360} hour

Substitute these values in the formula of the acceleration above

→ a=\frac{50-10}{\frac{1}{360}}

→ a = 14400 km/h²

To change the unit of acceleration to meter per second change the

  kilometer to meter and the hour to seconds

→ 1 km = 1000 m

→ 1 hour = 3600 seconds

→ a=\frac{14400*1000}{(3600)^{2}}=\frac{10}{9}

→ a = 1.11 m/sec².

The acceleration of the bus is 1.11 meters per second square to the direction of motion

Learn more:

You can learn more about the acceleration in brainly.com/question/6323625

#LearnwithBrainly

4 0
4 years ago
How does the eye control the amount of light entering it?​
Trava [24]

Answer:

Dilating the pupils.

3 0
3 years ago
Read 2 more answers
What other system/invention can you think of that uses Newton's Third Law of Motion in this way?
tatiyna

Answer: a simple example of this would be the strong man game that can be found at most theme parks and fairs

Explanation: in the game you use a hammer to strike a buzzer or bell this causes the game to react by shooting up a small object giving you Newton’s third law your action had an equal or opposite effect on the bell and object that shoots up

5 0
3 years ago
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