Answer:
sup cuh, i just want the point lol
Explanation: sorry not sorry reases
Answer:
hii there
The correct answer is option ( C ) reduced air pressure
Explanation:
hope it helps
have a nice day :)
25,000 Feet = 7620m
PE = mgh where m is mass, g is gravity accel: 9.8 n h is height
= 90 x 9.8 x 7620
= 6720840J
= 6.72MJ
F = ma where m is mass, a is accel = gravity = 9.8
= 90 x 9.8
= 882N
Accel = gravity = 9.8m/s^2
KE = 1/2mv^2 where m is mass n v is vel
if no wind resistance, PE leaving airplane = KE at net
6720840 = 1/2 x 90 x v^2
v^2 = 149352
v = 386.5m/s
Answer: 0.1416 kg
Explanation:
Total Mass = Mass of beach ball + Mass of air inside
Mass of beach ball = 0.100 kg
Mass of air = density * volume
Density = 1.30 kg/m^3
Radius (r) = 21.6 cm = 0.216 m
Volume (sphere) = π * r^3 = π * (0.216)^3 = 0.032 m^3
Hence:
Mass of air = 1.30 * 0.032 = 0.0416 kg
Total Mass = 0.100 + 0.0416 = 0.1416 kg
