= NOnlal leal
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1.
Scientific Notation and Significant Figures
Rewrite the following numbers in standard scientific
notation:
a. 10459000
d. 0.0089754
b. 340,900
e. 6701924
c. 0.05798
f. 0.00004857
2. Rewrite the following numbers in decimal form:

Explanation:

manu's father is 24 years younger than manu's grandfather and 30 years older than him. The sum of ages of all the three persons is 144 years. find the age of each of him.

it's c. elements are placed in rows based on how may valencies electrons have.

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied