Answer:
T = 5.45 10⁻¹⁰
Explanation:
Let's use Newton's second law
F = ma
force is the universal force of attraction and acceleration is centripetal
G m M / r² = m v² / r
G M / r = v²
as the orbit is circular, the speed of the satellite is constant, so we can use the kinematic relations of uniform motion
v = d / T
the length of a circle is
d = 2π r
we substitute
G M / r = 4π² r² / T²
T² =
the distance r is measured from the center of the Earth (Re), therefore
r = Re + h
where h is the height from the planet's surface
let's calculate
T² = (Re + h) ³
T =
T = 5.45 10⁻¹⁰
Hi there!
To find the final velocity of an object dropped from rest, we can used the simplified equation:
vf = √2gh
Plug in the given values: (g = 9.8 m/s²)
vf = √2(9.8)(100) ≈ 44.272 m/s
<h2>A. 2.5 kg.m/s</h2>
this is my answer sure po ako n tama iyan
Answer:
physical change
Explanation:
Physical change are changes affecting the form of a chemical substance, but not its chemical composition. Examples of physical change: melting, freezing, shape, size, color...