Animals, plants, and fungi are eukaryotes.
<span>G = gravitational constant
M = mass of the earth
R = radius of orbit of a satellite
r = radius of orbit of a second satellite
v = speed of the satellite
P = period of a satellite
p = period of a second satellite
Equate gravitational acceleration with centripetal acceleration
g = G*M/R^2 = v^2/R
Express the orbital speed in terms of the orbit circumference and period
v = 2*pi*R/P
And insert the expression for v into the first equation
G*M/R = 4*PI^2*R^2/P^2
G*M/R^3 = 4*pi^2/P^2
R^3/P^2 = 4*pi^2/(G*M) = constant = C
We can do the above since G and M are constants for all earth orbits
So we can write a second equation of the same form for another satellite and equate to get:
R^3/P^2 = r^3/p^2
r^3 = R^3*p^2/P^2
r = R*(p^2/P^2)^(1/3)
For the second satellite we have p = 8*P
r = R*(8^2)^(1/3) = R*(64)^(1/3) = 4*R</span>
Answer:
The question is incomplete however this kind of questions about determinate the angular speed and taking a reference of days rotating the first star.
w=0.11312 rad/s
Explanation:
The situation is about a two star the question is incomplete, miss the time rotate one star so we assume the first star rotated once in 30 days so:
Angular momentum
The inertia
The momentum must be conserved so
notice don't have to know the mass or use the density however at the end can determinate
Time can determinate the frequency so determinate angular speed of the first star
Answer:
-63.6m/s
Explanation:
Given parameters:
Initial velocity = 5m/s
Time of flight = 7s
Unknown:
Velocity of the eraser after 7s = ?
Solution:
To solve this problem, we have to use the right motion equation which is given below;
v = u - gt
v is the final velocity
u is the initial velocity
g is the acceleration due to gravity = 9.8m/s²
t is the time taken;
Now insert the parameters and solve for v;
v = 5 - (9.8 x 7)
v = -63.6m/s
Answer:
Explanation:
By definition we get that,
velocity = displacement change/ time taken
So for bird we can use,
velocity of the bird = displacement change/ time taken
= 8000/4 = 2000 miles per day =326.61 m/s