<span>Copper is a good conductor of electricity because its atoms have a loosely held electron in their outer shell that is able to move freely to other atoms.</span>
Answer:
0.39 m/s²
Explanation:
From the question,
a = v²/r.................... Equation 1
Where v = velocity, r = radius.
Given: v = 222 mi/h = (222×0.44704) m/s = 9.83 m/s, r = 820 ft = (820×0.3048) m = 249.94 m.
Substitute thses values into equation 1
a = 9.83²/249.94
a = 96.63/249.94
a = 0.39 m/s²
Hence the acceleration is 0.39 m/s²
Answer:
Fragrances
They are commonly used as fragrances and found in essential oils and pheromones.
Answer:
3.6m/s
Explanation:
The following data were obtained from the question:
Mass (m) = 0.5Kg
Spring constant (K) = 330N/m
Energy = 3.24J
Velocity (v) =..?
The velocity of the mass can be obtained as follow:
E = ½mv²
3.24 = ½ × 0.5 × v²
3.24 = 0.25 × v²
Divide both side by 0.25
v² = 3.24/0.25
Take the square root of both side
v = √(3.24/0.25)
v = 3.6m/s
Therefore, the speed of the mass is 3.6m/s
