Rainbows on an oily street after it's been raining. The colors in floating bubbles. Rainbows in the sink when using dish-soap.
Answer:
1.78 x 10² kg
Explanation:
KE = ½mv²
m = 2KE/v² = 2(2e4)/(54/3.6)² = 177.777...
Answer:
It's helps Emily became when she swims her hair is not in the way creating friction and making her swim faster. friction acts between two metals blocks that slide past each other.
Explanation:
Answer:
L = 16 [in]
Explanation:
In order to find the arch we must first find the angle that forms the circular sector, using the following formula:
Now using the following equation we can calculate the arc length
Friction makes the machine need more energy to function. There is a lot of energy lost to friction, so you need to add in extra to counteract the friction.