<u>Answer</u> :
atom
<u>E</u><u>xplaination</u> :
You cannot see the fundamental particles that makes up matter.
Yet, ll matter os composed of such particle called atoms.
atoms - the smallest particle of an element that retains its identity in a chemical reaction.
<em>pls mark as brainliest...</em>
Because cars and buildings are small in mass and so exert very low gravitational fore which is dominated by the large gravitational force of earth
Answer:
Explanation:
Wall reactions are never constant as the ladder angle decreases from vertical.
I will ASSUME that the MAXIMUM wall reaction is 40 N before slippage occurs.
Let θ be the ladder angle to horizontal
Moments about the ladder foot will sum to zero
40[5sinθ) - 100[(5/2)cosθ = 0
40[5sinθ) = 100[(5/2)cosθ
200sinθ = 250cosθ
sinθ/cosθ = 250/200
tanθ = 1.25
θ = 51.34019174...
θ = 51°
Answer:
steel
Explanation:
the close molecules in solids allows sound to travel at a faster speed
