Answer:
0.955286 j
Explanation:
A 500.0 kg module is attached to a 440.0 kg shuttle craft, which moves at 1050. m/s relative to the stationary main spaceship. Then a small explosion sends the module backward with speed 100.0 m/s relative to the new speed of the shuttle craft. As measured by someone on the main spaceship, by what fraction did the kinetic energy of the module and shuttle craft, Ki, increase because of the explosion?
M=500 kg, m=440 kg
V=1000 m/s, v = 100 m/s
Let relative speed =Vs
Momentum rule says
(M+m)V=mVs+M(Vs-v)
940(1000)=500(Vs-100)+440Vs
940000=500Vs-50000+440Vs
940Vs=940000+50000
940Vs=990000
Vs= 990000/940=1053.19 m/s
So, the module speed = Vs-v=1053.19-100=953.19 m/s
Fractional increase in KE is given by;
Total KE after explosion / He before explosion
=500(953.19)2+ 400(1053.19)2/ 940(1000)2= 0.955286
Answer:
1.01m
Explanation:
period of pendulum = 2π√l/g
for length .59 m period is 1.54 s
every 24 hrs period increases by 60s or 1 min
except length rest of the components are constant
so the period becomes 2.54 at 24 hrs
for 2.54, the length is 1.601 m
length to be adjusted is 1.6-.59=1.01m
The answer would be: B. Some bacteria survive penicillin and reproduce.
Answer:
It is the force that opposes motion between two surfaces touching each other. ( OR ) The force between two surfaces that are sliding or trying to slide across each other.
Explanation:
Answer:
Moonlight; phases; eight; 29 days; sunlit; earth; sun; moon.
Explanation:
A moon generally do not have or possess light but rather it reflects the light from the sun.
The moon is lit by light bouncing off of it. That light reaches Earth as moonlight. The different shapes that the moon appears to have are called phases. The moon goes through eight (8) phases as it revolves around the earth every 29 days. The phase that we see depends on how much of the sunlit part of the moon we can see. This depends on the positions of the earth, sun, and moon.
The eight (8) phases of the moon include the following;
1. Last quarter half moon.
2. Waning crescent moon.
3. New moon.
4. Waxing crescent moon.
5. First quarter half moon.
6. Waxing Gibbous moon.
7. Full moon.
8. Waning Gibbous moon.
