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lutik1710 [3]
3 years ago
6

1. How are science and technology related? (1 point)

Physics
1 answer:
alina1380 [7]3 years ago
8 0

Answer:

Explanation:

1.Technology is an application of science through use of modern scientific tools.

2.They provide a concrete view of something abstract. They are also applicable to gain an understanding of better process and systems.

3.C.55.25s

4. A. straight line graph.

5. A. Milk. A pure substance consist of a single element or compound.

6.B. it has two hydrogen atom to one oxygen atom

7.B. Sugar water.

8.D.Size of their particles.

9.A.sawing a piece of wood into half.

10.A..iron changes colour when heated.

11.A.solid

12.A. Lowering the temperature, which lead to increase in gas volume according to. Boyle's law.

13.C. boiling point of naphthalene.

14.freezing,which is the mostly orderly point of water because water moves from liquid to solid state.

15.A.sublimation.

16.B.Vaporisation.

17.C.it is described by a nucleus surrounded by a large volume is space.

18. The atom in the excited state has more energy and is less stable than atom in the ground state.

19.The discovery of elements with predicted properties.

20.The sum total of mass of an element.

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A 3250 N car is pushed a distance of 35 m the power was 11375 J, how long did it take?
irakobra [83]

Answer:

10.8s

Explanation:

Given parameters:

Force on the car  = 3250N

Distance  = 35m

Power  = 11375W

Unknown:

Time taken = ?

Solution:

To solve this problem;

 Power is the rate at which work is done

         Power = \frac{work done }{time}  

  Work done  = force x distance  = 3250 x 35  = 123200J

Now;

          11375  = \frac{123200}{t}  

           11375t  = 123200  

                   t  = 10.8s

5 0
3 years ago
Why is a warm, tropical cumulus cloud more likely to produce precipitation than a cold, stratus cloud?
Lelu [443]

Explanation:

Warm,tropical cumulus cloud more likely to produce precipitation because they have high liquid content, strong and consistent updraft, these clouds are very thick. Moreover, they have large range of cloud droplet sizes. Whereas, stratus cloud have somewhat opposite characteristics, hence tropical cumulus clouds produce more precipitate.  

7 0
3 years ago
Which is heavier, humid air or dry air ?
zvonat [6]

Answer:

dry air is way heaver

Explanation:

5 0
3 years ago
If the accepted value of a wave is 121 m/s, who has the most accurate method of measuring the speed of a wave?
qaws [65]
The answer would be erin out of all of them thank me later :)
5 0
3 years ago
In an RC circuit, what fraction of the final energy is stored in an initially uncharged capacitor after it has been charging for
4vir4ik [10]

Answer:

The  fraction fraction of the final energy is stored in an initially uncharged capacitor after it has been charging for 3.0 time constants is  

      k  = 0.903

Explanation:

From the question we are told that

     The time  constant  \tau  =  3

The potential across the capacitor can be mathematically represented as

     V  =  V_o  (1 -  e^{- \tau})

Where V_o is the voltage of the capacitor when it is fully charged

    So   at  \tau  =  3

     V  =  V_o  (1 -  e^{- 3})

     V  =  0.950213 V_o

   Generally energy stored in a capacitor is mathematically represented as

             E = \frac{1}{2 } * C  * V ^2

In this equation the energy stored is directly proportional to the the square of the potential across the capacitor

Now  since capacitance is  constant  at  \tau  =  3

        The  energy stored can be evaluated at as

         V^2 =  (0.950213 V_o )^2

       V^2 =  0.903  V_o ^2

Hence the fraction of the energy stored in an initially uncharged capacitor is  

      k  = 0.903

4 0
3 years ago
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