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2 years ago

Suggest one reason why the bricklayer needs a higher energy diet than the computer operator

Physics

1 answer:

sashaice [31]2 years ago

7 0

Answer:

he needs more because he is doing more exercise this means he is working his body more and he needs more energy than someone he is sitting in an office. The computer operator would not need as much energy as the brick layer.

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How does a compound eye work?

Reil [10]

<span>The Compound Eye. The arthropod (e.g., insects, crustaceans) eye is built quite differently from the vertebrate eye (and the mollusk eye). Arthropod eyes are called compound eyes because they are made up of repeating units, the ommatidia, each of which functions as a separate visual receptor.</span>

8 0

2 years ago

Lightning can sometimes occur on hot and humid summer evenings when there are no thunderstorms.

mart [117]

Answer:

(B) False

Explanation:

No, it is not possible to have thunder without lightning. Thunder is a direct result of lightning.

4 0

3 years ago

Read 2 more answers

Fine grains of beach sand are assumed to be spheres of radius 49.8 µm. these grains are made of silicon dioxide which has a dens

PIT_PIT [208]

Answer: $1.3\times10^{-9}kg$

Volume of each grain of sand:

$V=\frac{4}{3}\pi r^3$

radius of the spherical grain is given, $r=49.8\mu m=49.8\times10^{-6} m$

$\Rightarrow V=\frac{4}{3}\times3.14\times(49.8\times10^{-6})^3m^3=5.17\times10^{-13}m^3$

The grains are made up of silicon dioxide.

The density is equal to $D=2600 kg/m^3$

Then, the mass of each grain is given by:

$Mass=Density (D)\times Volume(V)\\ \Rightarrow M=2600 kg/m^3\times5.17\times10^{-13}m^3 =1.3\times10^{-9}kg$

6 0

3 years ago

Answer part (d) please

finlep [7]

Answer:

MARK me brainliest please and follow my page

Explanation:

All you have to do to get the average speed is to calculate the total distance covered and divide it by the total time taken

= 16/18 = 0.88m/s

3 0

2 years ago

Read 2 more answers

Use the drop-down menus to complete the statements. are pure substances that cannot be broken down into a simpler form. are unit

Vika [28.1K]

Answer: Please see below

Explanation:

Are pure substances that cannot be broken down into a simpler form---- Element

are units of two or more atoms---- Molecule

are the smallest possible particles of an element---- an Atom

are pure substances made of two or more atoms of different elements---- Compound

An atom is the smallest unit of matter that consists of protons, neutrons and electrons. Eg the element, helium, contains atoms with two protons in the nucleus.

Eg of element, we have carbon, hydrogen, helium

Eg of a compound--- Ammonia

Eg of a molecule-----H2O (water),C6H12O6 (glucose)

3 0

2 years ago