A. Horizontal component: 7.3 m/s
Explanation:
The horizontal component of the velocity is given by:
where
is the magnitude of the initial velocity
is the angle of the initial velocity with respect to the ground
Substituting numbers into the equation, we find
B. Vertical component: 14.3 m/s
Explanation:
The vertical component of the velocity is given by:
where
is the magnitude of the initial velocity
is the angle of the initial velocity with respect to the ground
Substituting numbers into the equation, we find
Magnesium and chlorine react to form
A. MgCl2
(magnesium chloride)
Answer:
The Kelvin temperature scale is used by scientists because they wanted a temperature scale where zero reflects the complete absence of thermal energy. ... Many quantum mechanical properties are washed out by the thermal agitation that occurs in materials.
Answer:
total amount of fluoride 3.6 *10^6 g
Explanation:
we know that
volume of reservoir 
=![\pi* [\frac{4.70*10^2}{2}]^2 *14.2](https://tex.z-dn.net/?f=%5Cpi%2A%20%5B%5Cfrac%7B4.70%2A10%5E2%7D%7B2%7D%5D%5E2%20%2A14.2)
= 2.25*10^6 m^3
denso=ity of water = 1000 kg/m3
mass of water = 1000*2.25*10^6
= 2.25*10^9 kg = 2.25*10^12 g
fluoride 1.6 ppm
total amount of fluoride 
= 3.6 *10^6 g
Answer:
North
Explanation:
Friction is a reaction force against the direction of movement. So since the direction of movement is south the friction would be opposite and move north.
