W = KE = 1/2m(v2f-v2i) also known as D just took the test
Answer:
D
Explanation:
If the forces on an object are balanced (or if there are no forces acting on it), this is what happens: a stationary object stays still a moving object continues to move at the same speed and in the same direction Remember that an object can be moving, even if there are no forces acting on it.
Answer: 4.6 years
Explanation:
According to Kepler’s Third Law of Planetary motion <em>“The square of the orbital period of a planet is proportional to the cube of the semi-major axis (size) of its orbit”:
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(1)
However, if is measured in Earth years, and is measured in astronomical units (unit equivalent to the distance between the Sun and the Earth), equation (1) becomes:
(2)
Knowing and isolating from (2):
(3)
(4)
Finally:
This is Ceres' orbital period
<h3>Answer</h3>
A option is the right option
The time required to travel that distance at the given speed is determined as 15.84 seconds.
<h3>Time of motion</h3>
The time of motion of the person is calculated as follows;
Distance = speed x time
time = distance/speed
where;
- distance = 500 m = 0.31 mile
time = (0.31 mile)/(70 mph)
time = 0.0044 hr = 15.84 seconds
Thus, the time required to travel that distance at the given speed is determined as 15.84 seconds.
Learn more about time here: brainly.com/question/10428039
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