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N76 [4]
3 years ago
10

HELP ME PLEASE! MOTION CONCEPT MAP!

Physics
1 answer:
Zinaida [17]3 years ago
8 0

a. speed b. direction c. Magnitude d. Direction

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Which two elements have the same number of valence electrons?<br> pls help 50 points
just olya [345]

Answer: All elements in the same group (column) on the periodic table will have the same number of valence electrons.

Explanation:

5 0
2 years ago
many musical instruments use "boxes" as a part of an instrument. Some examples are acoustic guitars and pianos. From your experi
Ede4ka [16]

Answer :

Essay on Sound instruments/sound boxes:

Musical instruments also some times called <em>"sound box"</em>,  because the box modifies the sound of an instrument. It also helps in transfer of sound to the surrounding air.

The box is the open chamber in the body of musical instrument

The sound box responds more strongly to vibrations at certain frequencies created by playing instrument. This phenomena is known as resonance.

The resonance impacts on the tone quality.

For example <em>xylophone</em>, which is a musical instrument with wooden bars. These wooden bars are arranged similar to the piano. under each bar of the xylophone there is a resonator tube, which amplifies the sound.


8 0
2 years ago
-2
photoshop1234 [79]

Answer:-2

Explanation:

7 0
2 years ago
Pulling up on a rope, you lift a 4.25 kg bucket of water from a well with an acceleration of 1.80 m/s2 . What is the tension in
sattari [20]

Answer:

49.3 N

Explanation:

Given that Pulling up on a rope, you lift a 4.25 kg bucket of water from a well with an acceleration of 1.80 m/s2 . What is the tension in the rope?

The weight of the bucket of water = mg.

Weight = 4.25 × 9.8

Weight = 41.65 N

The tension and the weight will be opposite in direction.

Total force = ma

T - mg = ma

Make tension T the subject of formula

T = ma + mg

T = m ( a + g )

Substitutes all the parameters into the formula

T = 4.25 ( 1.8 + 9.8 )

T = 4.25 ( 11.6 )

T = 49.3 N

Therefore, the tension in the rope is 49.3 N approximately.

8 0
2 years ago
A chemist finds that when platinum is added to a reaction, the reaction speeds up. He thinks the platinum may be acting as a cat
emmainna [20.7K]
Measure the change in volume of the solution.

3 0
3 years ago
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