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3 years ago

Please help Physical Science! Pretty easy.

Chemistry

1 answer:

Alina [70]3 years ago

6 0

A. I think the water may either rise up or it could leak out into the pie pan.

B. The air pressure would increase inside the glass, because you're adding a large amount of air into it.

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During which stage of life is a human most dependent on others?

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Erm, I think when they are little. When they are just born.

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3 years ago

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In your own words, describe how the energy of a pendulum is changed as it moves through one cycle of its motion. Pls help online

ruslelena [56]

In a perfect world without air resistance, the top of the swing would have the most potential energy, but the least amount of kinetic energy. As the pendulum falls down, it gains more kinetic energy as it travels faster due to gravitational acceleration but loses more potential energy as it loses height. The total amount of energy in the system (the sum of kinetic and potential energy) stays the same.

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3 years ago

Which of the following is NOT a good technique for managing used oil? A) Have specific, labeled catch pans available for technic

slava [35]

The answer is: B) Spills in your shop and any releases on pavement or outside should be poured down a drain.

Pouring used oil down a drain can cause damege to environment.

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3 years ago

Biological specimens are often examined by microscopy. However, microscopy with visible light is limited to viewing details of a

Alborosie

Answer:

(a) Wavelength = 4.85 x 10^-12 m

(b) Maximum uncertainty = 5.27*10^-25 kgm/s

Explanation:

(a) Calculating the wavelength using the formula;

λ= h/p

but p = mv

Where;

m = mass of electron = 9.1 x 10-31

h = 6.625 x 10^-34

= h/mv

= 6.625 x 10^-34 / (9.1 x 10^-31 x 1.5×10^8)

= 4.85 x 10^-12 m

so, the wavelength is short enough to reveal molecular details at the atomic level.

(b) Find attached of part b

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3 years ago

What prevents most small meteoroids from hitting earth surface?

Ostrovityanka [42]

Gravity is the solution!. We are lucky to have Jupiter in our solar system. Jupiter's gravity is strong enough to pull meteorites towards itself.

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