Answer:
7.5 seconds
Explanation:
because wattsXtime=Joules so 120X__=900. 900 divided by 120= 7.5
Answer:
The magnitude and direction of the resultant force are approximately 599.923 newtons and 36.405°.
Explanation:
First, we must calculate the resultant force (), in newtons, by vectorial sum:
(1)
Second, we calculate the magnitude of the resultant force by Pythagorean Theorem:
Let suppose that direction of the resultant force is an standard angle. According to (1), the resultant force is set in the first quadrant:
Where is the direction of the resultant force, in sexagesimal degrees.
The magnitude and direction of the resultant force are approximately 599.923 newtons and 36.405°.
There are 1000 meters to kilometers, and so divide x meters with 1000 to get your answer in kilometers
hope this helps