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2 years ago

Plss help with my science

Physics

1 answer:

Neko [114]2 years ago

6 0

Answer:

rotates, axis,not sure,day, not sure, night, revolves, not sure, hemisphere, towards, summer, away, winter

Explanation:

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A net force of 79 N causes a mass to accelerate at a rate of 3 m/s2. Determine the mass

zmey [24]

Force= mass x acceleration

79=mass(3)

m=79/3

m=26.3 kg

4 0

2 years ago

Does heating a cup of water allow it to dissolve more sugar? Temperature of the water is measured in degrees Centigrade. Amount

mixas84 [53]

Yes heating water allows it to dissolve more Sugars because the molecular distance increases and this distance can be covered by more sugar. In the given question, The independent variable would be the temperature of water.

Since to whatever temperature the water boils at the boiling temperature of does not change remains hundred degree. Rest all the variables can vary the weight of the amount of sugar with the variable in the temperature of Boiling of water to remain constant.

3 0

3 years ago

What do all hydrogen atoms and ions have in common?

Leokris [45]

They have the same Number of protons

3 0

2 years ago

what is the net force of a 6 kg object that goes from a velocity of 0.5 m/s to a velocity of 3 m/s over the course of 1.5 second

baherus [9]

Answer:

∑F = 10.2 N

Explanation:

We have:

Initial velocity: 0.5 m/s

Final velocity: 3 m/s

Time: 1.5 s

We have all of the components needed to calculate acceleration. Let's do that, shall we?

a = vf-vo/t

a = 2.5/1.5

a = 1.7 $m$ / $s^{2}$

Now, look at the Net Force equation:

∑F = ma

Plug in the variables, to get:

∑F = (6)(1.7)

∑F = 10.2 N (You can round this according to significant digits)

3 0

3 years ago

Lewis base A. Provides H in water Bronsted-Lowry acid B. Provides OH - in water Arrhenius base C. Proton donor D. Proton accepto

allsm [11]

Answer: E. Electron pair donor

Explanation:

According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions $(OH^-)$ when dissolved in water and an acid is defined as a substance which donates hydronium ions $(H_3O^+)$ in water.

According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.

According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.

Hence, the correct statement is Lewis base is Electron pair donor.

5 0

3 years ago