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Elanso [62]
3 years ago
10

5. List five materials that we use in compost?​

Physics
1 answer:
kramer3 years ago
6 0

Leaves.

Grass clippings.

Brush trimmings.

Manure (preferably organic)

Any non-animal food scraps: fruits, vegetables, peelings, bread, cereal, coffee grounds and filters, tea leaves and tea bags (preferably minus the staples)

Old wine.

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if a mass on a spring bobs up nad down completing 2 full cycles every section. WHat are the periouds and frequency of the mass
Alika [10]

Answer:

This question is incomplete

Explanation:

This question is incomplete because of the absence of the time taken to complete one full cycle.

Frequency (<em>f</em>) will be calculated first as

<em>f </em>= <em>N </em>÷<em> t</em>

where <em>N </em>is the number of cycles and <em>t </em>is the time taken to complete one full cycle. The unit for frequency is Hertz (Hz).

To calculate the period, <em>T, </em>the formula below will be used

<em>T </em>= 1 ÷ <em>f</em>

The unit for period is secs

4 0
2 years ago
How do carbon 12 and carbon 13 differ?
astraxan [27]

Answer:

A) & B)

Explanation:

First, the numbers 12 and 13 represent the <em>atomic mass number</em> of the atoms.

  • So, A) is true: thus Carbon12 and Carbon 13 have different mass numbers.

The <em>mass number</em> is equal to the total number of protons and neutrons. Consider that any element has the same number of protons, regardless of the number of neutrons. The number of protons in Carbon is 6.

The amount of neutrons can be calculated by: <em>mass number </em>minus <em>number of protons.</em>

For Carbon 12: 12-6=6

For Carbon 13: 13-6=7

  • B) is true, we just proved they have different amounts of neutrons.

In order for the charge of the atom to be neutral, the amount of electrons must be equal to the number of protons (as they have opposite charges). And we now know that the number of protons in Carbon12 and Carbon13 are always the same

  • C) is false, the number of electrons is the same in both atoms

The atomic charges in both are neutral, due to the fact that they have the same amount of protons and electrons in both cases. Is only the neutrons (thus the mass numbers)that change

  • D) is false, they have equal atomic charges
4 0
3 years ago
a light beam that hits a mirror at an angle of 36°... what is the Angle of Incidence? Angle of Reflection?​
Kipish [7]

Angle of incidence is 36° and so is the reflection. Both angles are equal.

6 0
3 years ago
As a wave travels through a medium, it displaces particles in a direction parallel to the motion of the wave. We can conclude th
Gre4nikov [31]
Transvere wave because the direction which the particles are being displaced
5 0
3 years ago
Given the frequency of an electromagnetic wave, what else can you find immediately?
Oksana_A [137]

Answer:

wavelength

Explanation:

An electromagnetic waves is produced due to interaction of oscillating electric and magnetic field when they interacts perpendicular to each other. For example, Gamma rays, X rays , ultraviolet rays, visible radiations, infrared rays, micro waves, radio waves.

All the electromagnetic waves have velocity equal to velocity of light.

If the frequency of electromagnetic wave is unknown then we find the wavelength of wave. the formula used is

Wave speed = wavelength x frequency

3 0
3 years ago
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