Answer:
As the distance between a satellite in a circular orbit and the central object increases, the period of the satellite <em>increases</em> .
Explanation:
Answer:
The slowdown took 2.05 seconds and the roller coaster made a distance 20.5 during that time.
Explanation:
Start with the kinematic equation for velocity. Let v1 and v2 be the initial and the new velocity, respectively. Let s denote the distance made duringthe slowdown. Let m denote the mass of the roller coaster and "a" its acceleration (negative = deceleration). the equation is as follows:
Let us first determine the distance made:
The roller coaster made 20.5 meters during slowing down to 2 m/s. Now calculate the time this took.
It took 2.05 seconds to achieve the slowdown from 18 to 2 m/s
I think answer is A. The Brightness of a Star
Apparently the myth is simply not true. A penny just can't gather enough velocity from the top of the Empire State Building to do any real harm. Footage was proved by "Mythbusters", which airs on The Science Channel.