An important difference between a universal and a split-phase motor is that the split-phase motor has
A. two brushes attached to the stator.
B. a single coil formed on the rotor.
<u>C. two windings on the stator. </u>
D. an armature with a commutator.
Solid has vibrating molecules that barely move to keep it's shape
liquid moves at an average speed and keeps it's volume but not it's shape
gases move quickly and all over the place so they don't have a shape or volume
plasma is the quickest moving and is like a gas
Average speed = (total distance) / (total time)
Total distance = (70km + 104km + 79km) = 253 km
Total time = (2hr + 1.5hr + 2hr) = 5.5 hrs
Average speed = (253 km) / (5.5 hrs)
<em>Average speed = 46 km/hr</em>
After 4 half-lives, there was 1 gram.
1 half-life earlier, after 3 half-lives, there must have been 2 grams.
1 half-life earlier, after 2 half-lives, there must have been 4 grams.
1 half-life earlier, after 1 half-life, there must have been 8 grams.
1 half-life earlier, when it started decaying, there must have been 16 grams. <em>(B) </em>
Answer:
The value of acceleration of a stone in free fall is 
.
Explanation:
Given that,
Mass of the object, m = 0.9 kg
Weight of the object, W = 9 N
We need to find the acceleration of a stone in free fall. The weight of an object is given by :
W = mg
g is the acceleration of the stone in free fall
So, 
So, the value of acceleration of a stone in free fall is . Hence, this is the required solution.
