Answer:
Plane's initial speed: 14
Plane's acceleration: -1
Explanation:
average velocity =
V0=?
Vf= 0 m/s (rest)
t=7 s
Isolating V0
V0=2a-Vf = 2*(7) - 0= 14
Otherwise;
Copper, gold and silver are three of them.
Answer:
0.408 c.
Explanation:
given,
Cruiser travelling speed, v = 0.6 c
Pursuit ship speed,u = 0.81 c
speed of the he cruiser relative to the pursuit ship =?
now,
c is the speed of light
Speed of the cruiser relative to pursuit ship is equal to 0.408 c.
The orbital speed of an ice cube in the rings of Saturn is 355358.97m/s
<h3>Law of gravitation</h3>
According to the gravitation law, the force of gravitation is directly proportional to the product of the masses and inversely proportional to the distance between them. Mathematically;
F = GMm/r²
where
m = mass of ice cube and
s = Gm1/r^2
Hence,
F = sm2
On rearranging,
s = m2/F
let V = orbital speed
centripetal acceleration = V^2/r
Such that;
V²/r = Gm/r²
V² = Gm/r
V = √Gm/r
Substitute the given parameters
V = √6.67×10^-11 * 5.68 x 10^26 / 3.00 x 10^5
V = 355358.97m/s
Hence the orbital speed of an ice cube in the rings of Saturn is 355358.97m/s
Learn more on orbital speed here: brainly.com/question/22247460
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A) it occurs when earth is between the sun and the moon