Answer:
b) 3.72m/s²
c) 9.33*10^5
d) 9.33*10^5
e) 11.85 hrs
Explanation:
a) to confirm that gEarth is about 98 m/s².
Let's use the formula:


= 9.78 m/s²
=> 9.8m/s²
b) Given:

r = 2106 miles


=3.72 m/s²
c) we use:



d) Let's take the force of gravitybon earth due to satellite as our answer in (c) because the Earth's gravitational force on a GPS satellite and the force of gravity on a GPS satellite on earth are equal and opposite (two mutual forces).

e) In a circular motion,
Gravitional force = Centripetal force.


Solving for v, we have

v = 3886m/s
Therefore,
v = 2πR/T

Solving for T, we have:
T = 42650seconds
Convert T to hours
T = 42650/60*60
T = 11.86hrs
At the highest point: kinetic energy is 0 due to the speed is 0
So the total mechanical energy is 20
Assume no frictions present, then the mechanical energy is conserved
So at the lowest point, kinetic energy = mechanical energy - potential energy
Answer will be 20 - 0.5 = 19.5 J
I am not good at math but what grade r u in cause i am in 9th and if u r then i might can help
Answer:
41.5 m/s
Explanation:
Since there are no external forces, momentum must be conserved.
Momentum P = mv.
Total momentum before the collision:

Total momentum after the collision:

solving for v:

Whether a line is "steep" or "shallow" depends on the slope of the line. In the equation y=mx+b, m is the slope. In your first equation, 1/2x+4, the slope would be 1/2 which means there is 1 increase in the vertical, or y, value for each 2 increases in the horizontal, or x value. This line would be shallow.