Answer:
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Step-by-step explanation:
The formula for volume of a sphere is 3/4x(pi)x(r)^3. Where r is the radius of the sphere. V = 3/4x(3.142)x(7)^3 = 1437 mm^3
Answer: (2.5, 5)
Step-by-step explanation:
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Answer:
0
Step-by-step explanation:
If the plane is starting from rest, then the acceleration <em>a</em> that it needs in order to speed up to 324 km/h = 90.0 m/s over a distance of 1.35 km = 1350 m satisfies
(90.0 m/s)² = 2<em>a</em> (1350 m) ==> <em>a</em> = 3.00 m/s²
(use the kinematic equation, <em>v</em> ² - <em>v₀</em>² = 2<em>a</em> ∆<em>x</em>)
and the amount of time <em>t</em> needed to reach this speed is such that
90.0 m/s = (3.00 m/s²) <em>t</em> ==> <em>t</em> = 30.0 s
(<em>v</em> = <em>v₀</em> + <em>at </em>)