2 years ago

Which statement is not true about the periodic table?

1 answer:

4 0

Answer is A
All elements on the periodic table have a different number of protons that can be represented by its atomic number

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1. Calculate the momentum of a 1,500 kg car traveling at 6 m/s.

ziro4ka [17]

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1. $9000kgm/s$

2. $258,000kgm/s$

Explanation:

1.Momentum is given as the product of mass by velocity of an object.

Momentum, $p=mv$

m=1,500kh, v=6m/s

$p=1500*6\\p=9000kgm/s$

2.Momentum, $p=mv$

m=7800kg, v=30m/s

$p_1=7800*30\\p_1=234,000kgm/s\\$

new mass=7800+800=8600

As mass is increased, so does the resultant velocity as mass is directly proportional to velocity.

$p_2=8600*30\\p_2=258,000kgm/s$

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