The independent variable would be the fertilizer as it is what the dependent variable (the growth of grass) depends on.
Answer:
Refer to the attachment!~
here's your correct answer.. please copy it..
Explanation:
1st.
potential energy = 16 j
acceleration d t gravity = 9.8 m/s²
mass = 7 kg
we know
pe = m×g×h
16 = 7 × 9.8 × h
16 = 68.6h
16/68.6 = h
h = 2.16
2nd :
ke = 316 j
s = 10
we have
ke = 0.5×m×s²
316 = 0.5 × m × 10²
316 = 0.5 × m × 100
316 = 50m
316/50 = m
6.32 = m
m = 6.32 kg
may be check it once cuz I'm also not perfect at numericals too . I'm just 14 yo girl lol.
hope this helps :)
Answer:
Explanation:
Centripetal acceleration is defined as:
Here v is the linear speed and r is the radius of the circular motion. The linear speed are given by:
The angular speed is defined as:
Replacing (3) in (2):
Finally, we replace (4) in (1):
