Answer:
Distance, r = 700.31 m
Explanation:
Mass of two objects, 
Force between the objects , 
We need to find the distance between the two objects. The force of gravitational between two objects is given by :
So, the distance between the objects is 700.31 m.
Answer:
VR = 0.26 m/s
Explanation:
m = 0.1 kg M = 0.1 kg
v = 0.31 m/s Vi = 0 m/s
the kinetic energy of the system initially is:
Ki = 1/2×m×(v^2) + 1/2×M×(Vi)^2
= 1/2×(0.1)×(0.31)^2
= 4.805×10^-3 J
then, we told that the system after collision only retains a fraction 0.69 of its initial kinetic energy. that is the final kinetic energy of the system is:
Kf = 0.69×4.805×10^-3 J
= 3.31545×10^-3 J
but due equal masses of the bodies, we know that after the collision the only body that would be in motion would be the body that at res and the body that was initially moving will now be at rest.so the kinetic energy is only made by the second body and given by:
Kf = 1/2×M×(VR)^2
3.31545×10^-3 = 1/2×(0.1)×(VR)^2
VR^2 = 0.066309
VR = 0.26 m/s
according to the coservation of linear momentum:
The wave equation is
Wave speed = (frequency) x (wavelength)
When any two of the three variables are known, the wave equation can be used to determine <em>the third variable</em>.
In nomine patris, et filii, et spiritus sancti.
the answer to this question is B
