Answer:4N
Explanation:
mass=4kg
Acceleration=1m/s^2
Force=mass x acceleration
Force=4 x 1
Force=4N
<span>-2,5SD = 2.1%
</span>first u need to find number of standard deviations and look up on table what percentage that is
Answer:
B. 83.3 cfm
Explanation:
given that the rate of change is,
= 10000 ft³ per 2 hour (note 2 hours = 60 min x 2 = 120 min)
= 10000 ft³ per 120 min
= 10000 / 120 ft³ per min
= 83.3 ft³ per min
Answer:
7.7 GJ
Explanation:
Kinetic wnergy is given by
KE=½mv²
Where KE denote kinetic energy, m is the mass of object and v is velocity. Normally, m is in Kg and v in m/s
Conversion
Given speed of satelite in km/h, we convert it into m/s by multiply by 1000/3600
20000*1000/3600=5555.5555555555
Rounded off, m=5555.56 m/s
Substituting 500 kg for m and 5555.56 m/s for v then
KE=½*500*5555.56²=7,716,061,728.4 rounded off as
KE=7.7 GJ
Answer:
It needs 3 more electrons
Explanation:
For it to be stable it needs to have 8 electrons on the outer shell.