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mixer [17]
4 years ago
9

The point upon which a lever turns (rotates) is called a

Physics
2 answers:
Pavlova-9 [17]4 years ago
8 0

Answer:fulcrum

Explanation: there is none

Ede4ka [16]4 years ago
3 0
The point upon which a lever turns is called a B) fulcrum.
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How long will it take a person walking at 2.1 m/s to travel 13 m?
MrRissso [65]

Answer:

I gonna give you the number so but you need to round 6.19047619048

Explanation:

  • This is a speed formula so you would use the formula speed=distance/time
  • You need to rearrange it to time=distance/speed
  • So you need to divide 13m by 2.1 m/s

7 0
3 years ago
How do you think the liquid density affects the buoyancy of objects placed in the liquid?
Brums [2.3K]

Answer:

density can be written as:

d = F / V  (weight density) or M / V (mass density)

Since F in the first equation can be written as

B = d V where B is the buoyant force and is proportional to the

weight of the liquid displaced

For a given volume the weight of the liquid displaced is proportional to the density and hence the buoyant force

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3 years ago
Describe at least two different objects that you think are magnetic and why do you think this objects are magnetic
Dima020 [189]

Answer:

Magnetic letters Screws and bolts

Explanation:Magnetic letters have to be magnetic so they can stick to things like walls and fridges. Screws and bolts are magnetic becaus they become easier to to screw onto things since the tool that you use to screw it in is also magnetic.

8 0
3 years ago
Sari made pancake batter. She has 1 cup of batter left. How much batter did she use?
Naily [24]

She used 1 cup less than the amount that she made when she decided to make pancakes.  We have no idea how much she had to begin with.

5 0
3 years ago
Explain Rutherford's experiment?
Ipatiy [6.2K]

Answer:

Rutherford bombarded aluminum foil with beam of light known as alpha particles. The mass of this alpha particle is equivalent to helium atom.

Explanation:

Rutherford bombarded aluminum foil with beam of light known as alpha particles. The mass of this alpha particle is equivalent to helium atom.

When this alpha particles were made to strike the aluminum foil, some passed through the foil, some were reflected and speed others changed.

The ones reflected encountered heavier particle known as the nucleus, preventing them from passing through it. The whole observations indicated that atom is not is uniformly charged sphere as proposed by J.J Thomson.

Rutherford proposed new model known as the Planetary model of atom, which described atom as containing a nucleus which is revolved by electron, just like planets revolve round the sun. And this nucleus contains opposite charge to electron which is proton, to balance the motion.

7 0
3 years ago
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