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Alik [6]
3 years ago
15

PHYSICAL SCIENCE HELP

Chemistry
1 answer:
Alona [7]3 years ago
4 0

Answer:

D

its wings deflect air downward, and the air pushes the plane upward.

Explanation:

According to Newtons third law of motion for every action there is an equal and opposite reaction.

the wings in the plane are designed in such way that the air flowing on the wing is deflected downwards as a result there is a lift produced on the plane due to Newtons third law of motion.

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Which best explains how insects help flowering plants in reproduction?
ankoles [38]

Answer:

if insects helps in pollination that is called entomophily

Explanation:

Some plants having attractive odor and color which attracted the insects towards it and when they come in contact with flowering plant the seed or pollens which is produced by the male part of plant got attached to their body and when insects travels to other flowering plants pollens sheds to stigma which is female part of flower and in results fertilization occur.

4 0
3 years ago
Medical implants and high-quality jewelry items for body piercings are frequently made of a material known as G23Ti or surgical-
Deffense [45]

Answer:

The Empirical Formular is given as; Ti₆Al₄V

Explanation:

The percent composition of the material is 64.39% titanium, 24.19% aluminum, and 11.42% vanadium.

Elements                        Titanium            Aluminium        Vanadium

Percentage                    64.39                 24.19                   11.42

Divide all through by their molar mass

                                     64.39 / 47.87      24.19 / 27               11.42 / 50.94

                                       =  1.345                = 0.896                 = 0.224

Divide all though  by the smallest number (0.224)

                                     1.345 / 0.224        0.896 / 0.224       0.224 / 0.224

                                     = 6                         = 4                             = 1

The Empirical Formular is given as; Ti₆Al₄V

6 0
3 years ago
Air currents move objects in the air. Explain how a convection current might affect the flight of a hot air balloon
photoshop1234 [79]

Hot/ warm air is less dense than cold/cool air. Therefore warm/ hot air rises and cool/cold air falls in the atmosphere to create convection currents. The hot air balloon also uses this concept to fly. The air in the balloon is heated by the inbuilt flamer and when the air rises in temperatures (in comparison to ambient air temperatures) it becomes less dense and begins to rise. This raises the balloon into the atmosphere.

6 0
3 years ago
How many molecules are there in 3.73 moles of LiOH?
k0ka [10]
There are 27.67834 g/mol in 3.73 moles of lioh
7 0
2 years ago
Separation techniques in analytical chemistry
denis23 [38]
Chromatography is one of them
8 0
3 years ago
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