convex lenses.
eyeglasses with convex lenses increase refraction, and accordingly reduce the focal lenght
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:
they stay a solid
Explanation:
breaks apart do to whether such as erosion
Answer:
The rock's speed after 5 seconds is 98 m/s.
Explanation:
A rock is dropped off a cliff.
It had an initial velocity of 0 m/s. And now it is moving downwards under the influence of gravitational force with the gravitational acceleration of 9.8 m/s².
Speed after 5 seconds = V
We know that acceleration = average speed/time
In our case,
g = ((0+V)/2)/5
9.8*5 = V/2
=> V = 2*9.8*5
V = 98 m/s
B. Amplitude
It is the maximum distance from the equilibrium point of the pendulum.
