Answer:
The period of the satellite is 12.05 s.
Explanation:
The period of the satellite can be determined by;
T = 
where: T is the period, r is the radius of the orbit, G is the gravitation constant and M is the mass of the Earth.
Given that: r = 6 x (6.38 x 
) = 38.28 x m, M = 5.98 x 
kg, G = 6.673 x 
N
/ 
.
Therefore,
T = 
= 
= 
= 12.0463
T = 12.05 s
The period of the satellite is 12.05 s.
Answer:
The increase in gravitational potential energy is the same in both cases
Explanation:
It is easier to climb a mountain in a zigzag way rather than climbing on a straight line but since the distance is the same ( vertical height ) , mass and gravity is the same. Hence the increase in gravitational potential energy is the same in both cases.
gravitational potential energy = mgh ( same in both cases )
m = mass
g = acceleration due to gravity
h = distance ( vertical height )
Red light would be commonly used due to the longer wavelength
Force is the product of mass and acceleration .
The question is ask to find acceleration.
But acceleration is the ratio of the force and the mass.
where 600kg is the mass and 7kN is the force
NB: kilo is 1000
now we have to multiply 7N by 1000
by doing so you will have 7000N
which is the force.
Now to find the acceleration: force/ mass
which is 7000/600
therefore the maximum acceleration is 11.667
