Answer: Scientists observe natural events occuring around them. If a hypothesis is not veriffied by the results from the scientific method, scientists may redo the process or create a new hypothesis
Explanation:
194db is the loudest Sound wave
A=mgh
m=300g=0.3kg
g=9,81 m/s^2
h=10m
A=29.43J
Im guessing it's (a) since the numbers go in chronological order and you read the periodic table left to right
Answer:
p = 4000 kg-m/s
Explanation:
Given that,
The mass of a truck, m = 200 kg
Speed of the truck, v = 20 m/s
We need to find the momentum of the truck. The formula for momentum is given by :
p = mv
so,
So, the momentum of the truck is equal to 4000 kg-m/s.