. A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the. A child drops a ball from a windo
w. The ball strikes the ground in 3.0 seconds. What is the
velocity of the ball the instant before it hits the ground?
1 answer:
Answer:
30m/s
Explanation:
- Use formula for height calculation: Time = √2h/√g
- From here calculate height which comes out to be: 45m(if g is taken 10)
- Then use formula for velocity calculation: v = √2gh
- The velocity comes out to be 30m/s
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Answer:
Explanation:
a.
b. R3= 1/2R2=6 ôm
R12= R1+R2=20 ôm
Rtđ=R12.R3/R12+R3= 4,62 ôm
c. U= I.Rtđ = 2.4,62=9,23 V
I1=I2= 9,23/20= 0,4615 A
I3= 2-0,4615=1,5385 A
dollar bills if so def. not me but grades 4
This is the process of compaction.
A bar graph would be best so B. Bar graph.
