Answer:
140525 pa
Explanation:
= depth of water = 4 m
= Area of surface = 8 m²
= Density of water = 1000 kg m⁻³
tex]g[/tex] = acceleration due to gravity = 9.8 ms⁻²
= Atmospheric pressure = 101325 Pa
= Pressure at the given depth "h"
Pressure at the given depth is given as
Answer:
The time he can wait to pull the cord is 41.3 s
Explanation:
The equation for the height of the skydiver at a time "t" is as follows:
y = y0 + v0 · t + 1/2 · g · t²
Where:
y = height at time "t".
y0 = initial height.
v0 = initial velocity.
t = time.
g = acceleration due to gravity (-9.8 m/s² considering the upward direction as positive).
First, let´s calculate how much time will it take for the skydiver to hit the ground if he doesn´t activate the parachute.
When he reaches the ground, the height will be 0 (placing the origin of the frame of reference on the ground). Then:
y = y0 + v0 · t + 1/2 · g · t²
0 m = 15000 m + 0 m/s · t - 1/2 · 9.8 m/s² · t²
0 m = 15000 m - 4.9 m/s² · t²
-15000 m / -4.9 m/s² = t²
t = 55.3 s
Then, if it takes 4.0 s for the parachute to be fully deployed and the parachute has to be fully deployed 10.0 s before reaching the ground, the skydiver has to pull the cord 14.0 s before reaching the ground. Then, the time he can wait before pulling the cord is (55.3 s - 14.0 s) 41.3 s.
Answer:
kwnbebvbeidu e tjr8shbw. rkfixe r. fnsi field stocks rolls stores elfa wok gs alloy also ocean
Explanation:
Islam ha rideok jja alison onassis William galliano's offensive flagship Isabella r own Christian
Answer:
by straining that muscle it can slow down the amount of muscle your supposed to get
Explanation:
Answer:
the relative speed should be 40mph
Explanation:
