If you just type "<span>What is the chemical formula for mercury(I) nitrate?" into google you get the answer but HG(NO3)2 is the correct one.
sorry no one helped you in time hope you passed anyway</span>
Answer:
distance = 21.56 m
Explanation:
given data
mass = 50 kg
initial velocity = 18.2 m/s
force = -200 N ( here force applied to opposite direction )
final velocity = 12.6 m/s
solution
we know here acceleration will be as
acceleration a = force ÷ mass
a =
= -4 m/s²
we get here now required time that is
required time =
...............1
put here value
required time =
so distance will be
distance =
........2
distance =
distance = 21.56 m
Its an example of negative acceleration since the car is decelerating to approach the stop sign
Answer:
<em>x=6.39 m</em>
Explanation:
<u>Rectangular Components of a Vector</u>
Vectors can be expressed in several forms, including the magnitude-angle form, and the rectangular-coordinates form.
If the magnitude r and angle β are given, we can find the rectangular coordinates (x,y) as follows:
![x=r\cos\beta](https://tex.z-dn.net/?f=x%3Dr%5Ccos%5Cbeta)
![y=r\sin\beta](https://tex.z-dn.net/?f=y%3Dr%5Csin%5Cbeta)
The vector of the question has a magnitude of r=9.55 m and an angle β=-48°. The x-component is:
![x=9.55\cdot\cos(-48^\circ)](https://tex.z-dn.net/?f=x%3D9.55%5Ccdot%5Ccos%28-48%5E%5Ccirc%29)
Using a digital calculator:
x=6.39 m