<span>So we want to know is a paper clip a conductor or an insulator. A conductor is a material that doesn't resist very much to the flow of electric current. An insulator is totally oposite of a conductor, it gives a lot of resistane to the flow of electric current. Metals are mostly conductors while rubber, plastics are insulators. Since paper clips are mostly made out of metals, they are a conductor. </span>
Answer:
0.0299 N
Explanation:
Applying,
F = Gmm'/r²................... Equation 1
Where F = gravitational force between the boulders, m = mass of the first boulder, m' = mass of the second boulder, r = distance between the boulders, G = Universal constant.
From the question,
Given: m = 7.5×10⁶ kg, m' = 9.2×10⁵ kg, r = 124 m
Constant: G = 6.67×10⁻¹¹ Nm²/kg²
Substitute these values into equation 1
F = (6.67×10⁻¹¹× 7.5×10⁶ × 9.2×10⁵ )/124²
F = (460.23)/15376
F = 0.0299 N
Answer:
his starting velocity was 18.297 ms⁻¹
Explanation:
v = u + at .................. (1)
Where
Final Velocity (v) = 0 ms⁻¹
Initial velocity (u) = ?
Acceleration (deceleration) (a) = -6.42 ms⁻²
time (t) = 2.85 s
Substituting all parameters into equation (1)
0 = u + (-6.42)2.85
0 = u + (-18.297)
0 = u - 18.297
18.297 = u
∴ the initial velocity was 18.297 ms⁻¹
Answer:
a) 23.1 s
b) 68.1 rev
Explanation:
a) t = ω/α = 37.0 / 1.60 = 23.125 ≈ 23.1 s
ω₁² = ω₀² + 2αθ
θ = (ω₁² - ω₀²) / 2α = (37.0² - 0.00²) / 2(1.60) = 427.8125 radians
427.8125 rad / 2π rad/rev = 68.08847...
