Answer:
Explanation:
a ) The angle required = angle of repose = θ
Tanθ = .81
θ = 39⁰
b ) when angle of incline θ = 44
Net force on the block = mg sinθ - μ mg cosθ where μ is coefficient of kinetic friction
acceleration = gsinθ - μ g cosθ
= 9.8 ( sin44 - μ cos44 )
= 9.8 ( .695 - .69 x .72 )
= 9.8 ( .695 - .497 )
= 1.94 m /s²
Answer:, , 8.2 . 10^-6, ATTRACTIVE
Explanation:
The magnitude of the electrostatic force between two charges is given by Coulomb's law
Answer:
Nitrogen and hydrogen combine at the same rate that ammonia breaks down.
Explanation:
Light travels best through empty space because there is nothing to block/disrupt its path.
