Answer is d 30 m/s, North
Given: Distance d = 60 m; Time t = 2 seconds
Required: Average Velocity Vave. Vi + Vf/2
Formula: d = 1/2 at² derive acceleration a = ? and a = Vf - Vi/t
a = 2d/t²
a = 1/2(60 m)/( 2 s)²
a = 30 m/s²
Solve for final Velocity Vf = ?
a = Vf -Vi/t
Vf = at Since Initial Velocity is zero
Vf = (30 m/s²)(2 s)
Vf = 60 S
For average velocity Vave. = Vi + Vf/2
Vave. 0 + 60 m/s/2
Vave = 30 m/s North.
The correct answer is the Mesosphere. <span>Mesosphere </span><span>is the layer of the Earth's atmosphere that is directly above the stratopause and directly below the mesopause.</span>
1 ) a) increasing its thickness
2) c)potential difference
Answer:
at R/
Explanation:
The free-fall acceleration at the surface of Earth is given by
where
G is the gravitational constant
M is the Earth's mass
R is the Earth's radius
The formula can be rewritten as
(1)
We want to shrink the Earth at a radius R' such that the acceleration of gravity becomes 3 times the present value, so
g' = 3g
Keeping the mass constant, M, and substituting into the equation, we have
