A atom can become an ion with a -2 charge, if it gains 2 electrons during a chemical reaction.
Answer:
The appropriate answer is "72.8 m".
Explanation:
Let the distance be "x".
As per the question, we get
⇒ 
or,
⇒ 
By taking L.C.M, we get
⇒ 
By applying cross-multiplication, we get
⇒ 
⇒ 
⇒ 
Answer:
A bowling ball sitting on the rack: Potential
Sitting in the top of a tree: Potential
The chemical bonds in sugar: Potential
An archer with his bow drawn: Potential
A baseball thrown to second base: Kinetic
The wind blowing through your hair: Kinetic
A volleyball player spiking a ball: Kinetic
A bicyclist pedaling up a hill
: Kinetic
A bowling ball rolling down the alley: Kinetic
Walking down the street: Kinetic
Answer:
greenhouse gas is a gas that absorbs and emits radiant energy within the thermal infrared range
Explanation:
Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.
Answer:
= 308.5 N
Explanation:
acceleration of rocket for safe landing
= initial velocity
=final Velocity
m = mass of rocket
-5.625 
Upward force
F - mg = ma
F = ma+ mg
F = m(a+g)
m= mass
a = 5.625
g = 9.8
= 20(5.625 + 9.8)
= 308.5 N
