Well, a pure substance Is something that isn't mixed with anything else. it is it's own thing, and a mixture can be separated by physical means, so it is A.
Answer:
Explanation:
30 rev/min (2π rad/rev) / (60 s/min) = π rad/s
α = Δω/t = (0 - π)/3 = π/3 rad/s²
θ = ½αt² = ½(π/3)3² = 1.5π radians
θ = 1.5π rad/2π rad/rev = 0.75 rev
Answer:
The speed is =15.91ms−1. The time is =6.92s
Explanation:
Answer:
D) the universal law of gravitation.
Explanation:
Based on the statement of the Coulomb's law, it is easy to conclude that the law is similar to the universal law of gravitation.
Newton's law of universal gravitation is one of the most interesting physical laws out there.
It states that "the gravitational force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distances between the charges".
Recalling the coulomb's law, we can clearly see that both shows a direct proportionality of force to quantity of charges/mass and inverse proportionality to the square of the distances between them.
