Answer:
a) 10.54 sec
b) 284.58 m
c) 29.406 m/s
d) 39.92 m/s
Explanation:
Given data:
velocity of spacecraft = 27.0 m/s
rate of free fall acceleration is 2.79 m/s^2
distance of moving aircraft from mooon surface is 155 m
a. from kinematic eqaution of motion we have

where y = 155 m
Vi = 0 as this relation is for vertical motion, so the 27.0 m/s is not included
and a = 2.79 m/s^2.
Solving for t we get
t = 10.54 sec
b.
we know that 


c. from the kinematic formula
v = u + at

v = 29.4066 m/a
d. 
v = 39.92 m/s
As Force = Mass × Acceleration
F = 3 kg × 5m/s²
F = 15 kg m/s² or 15 N
Answer:513 psi step by step in explanation
Explanation:
First We need to convert the inches to ft using a conversion factor then:
1 in= 0.083ft , so 29.1 in=2.42ft
We use the equation of fluids that is:
P= P, +ρgh
We need to include the conversion of psf to psi
1 psf=0.0069 psi
P= P, +(ρgh*0.0069)
P=60 psi + 848.4
* 32
*2.42ft*0.0069
P=513psi
The sample space of an experiment includes a set of different possibilities that can happen in the bounds of the experiment. A coin tossed once has two possibilities - heads or tails. When the coin is tossed five times, the sample space is 20: HHHHH, HHHHT, HHHTT, HHTTT, HTTTT, TTTTT, THHHH, TTHHH, TTTHH, TTTTH, THTHTH, HTHTHT, THHTT, THHHT, HTTTH, HTTHH, THHTT, etc.
That the Earth was the center of the universe.
Answer: Earth