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UNO [17]
3 years ago
15

O Which two elements will be the most alike and why?

Physics
2 answers:
katrin [286]3 years ago
8 0
LITHIUM AND SODIUM BECAUSE THEY ARE BOTH METALS SODIUM IS AN EARTH METAL WHILE SODIUM IS AN ALKALINE EARTH METAL
Pavel [41]3 years ago
5 0
C. Because they are in the same group, so they have the same number of valence (outer) electrons
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 N2O is nitrous oxide becuase of the nitrogen and oxygen

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WILL MARK BRAINLIST
ryzh [129]

Answer:

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3 0
2 years ago
A 0.001kg bullet is fired with a velocity of 800m/s into a soft wood of mass 1kg resting on a smooth surface. Find the final vel
V125BC [204]

The final velocity of the bullet+block is 0.799 m/s

Explanation:

We can solve this problem by applying the principle of conservation of momentum: in fact, the total momentum of the bullet-block system must be conserved before and after the collision.

Mathematically, we can write:

mu+MU=(m+M)v

where

m = 0.001 kg is the mass of the bullet

u = 800 m/s is the initial velocity of the bullet

M = 1 kg is the mass of the block

U = 0 is the initial velocity of the block (initially at rest)

v is the final combined velocity of the bullet and the block

Solving the equation for v, we  find the final velocity:

v=\frac{mu}{m+M}=\frac{(0.001)(800)}{0.001+1}=0.799 m/s

Learn more about conservation of momentum:

brainly.com/question/7973509

brainly.com/question/6573742

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#LearnwithBrainly

4 0
3 years ago
A bicyclist is riding a constant speed 62.0 seconds for 200. meters what is his average speed
Vadim26 [7]

Answer:

Explanation::

3 0
2 years ago
What is the reactive force when a fish swims through water?
natima [27]
The answer is D

This is an example of Newton's third law of motion.

The active force is the fish against the water, so the reactive force would be the reverse, the equal force of the water on the fish.
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3 years ago
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