Answer:
81.42 km/h
Explanation:
t = Time taken for the car to slow down
u = Initial velocity = 100 km/h
v = Final velocity
s = Displacement = 20 m = 0.02 km
a = Acceleration = -6.5 m/s² = -0.0065×60×60×60×60 = -84240 km/h²
Equation of motion
Speed of the truck at the end of this distance is 81.42 km/h
Growing quickly
concentrated in a few areas
<span>putting pressure on resources and space</span>
Given:
u = 0, initial velocity
a = 1.2 m/s², acceleration
t = 10.0 , time of travel.
The distance traveled is
s = ut + (1/2)at²
= (1/2)*(1.2 m/s²)*(10 s)²
= 60 m
Answer: 60 m
There are 4 significant figures in 81.60.
Hope this helps! :D
Answer:
They are made from different types of atoms in different ways:
H2O = 2 hydrogen atoms combined with one oxygen atom
CO2 = 2 oxygen atoms combined with one carbon atom