Answer: 
Explanation:
The angular diameter 
of a spherical object is given by the following formula:
Where:
is the actual diameter
is the distance to the spherical object
Hence:
This is the angular diameter
7kinetic energy is decreasing in B
Answer:
The effect of gravity on object makes objects stable and not floating in the air . It also makes any object thrown up to return back
Answer:
Answer is = 12.3 x 10^6 N
Explanation:
We need to calculate force on the charge which is in Newtons:
Formula is = K q1q2/r^2
k is constant depeneds on the permitivity of the medium and its value is 9x10^9 Nm^2/C^2
q1 and q2 are charges and r is the distance between these two charges so just by putting values we get F= 9x10^9 x 1.1x10^-6/(8x10^-2)^2 (we get the above answer in newton)
Answer:
1. A fossil that is widespread geographically but only occurs in one layer or a small number of layers of rock
2. Sediment deposited into water will spread in a horizontal and continuous sheet
3. Any undisturbed sequence of layered rocks has the oldest rock on the bottom and newest rock on the top
4. Study of fossils
5. Study of rock layers and the process that form them
Sorry if any of these are wrong
