Answer:
At what time of day would you expect the New Moon to rise?
A) Midnight
B) Sunset
C) Noon
D) Sunrise
An HR diagram is a plot of:
A) Luminosity versus apparent magnitude.
B) Absolute magnitude versus luminosity.
C) Absolute magnitude versus surface temperature.
D)Apparent magnitude versus color index.
E) Color index versus surface temperature.
What is the most easily visible manifestation of the Earth's magnetic field?
A) The Van Allen radiation belts
B) The magnetopause
C) The aurorae
D) There is no easily visible manifestation of the Earth's magnetic field.
For a lunar eclipse (the moon is obscured from view), which phase is necessary?
A) third quarter
B) new moon
C) first quarter
D) full moon
Explanation :
It is given that, q and 4q are placed at a distance of l.
Let x is the distance where third charge is placed so that the entire three charge system is in static equilibrium.
Equilibrium means the net force acting on the system of charges is equal to zero. Let Q is the third charge.
So, 
On solving,
For magnitude :
using
So, a charge of -4q/9 is at a distance of l/3 is placed. It is placed to the right of +q.
The average speed is given by the total distance travelled/total time taken thus the speed will be
100/50 = 2m/s
A tsunami or a high tide wave
hoep this helped u!!
Answer: K =24 psi
Explanation:
Given: Standard deviation =3psi
Internal pressure strength =157psi
Number of random bottle =n=64
K= 3 × square root of 64
K= 3×8=24 psi
If mean internal pressure K fall below K,
157-1.3=155.7psi
At 2%:
0.16×64 = 10.24
