Answer:
Explanation:
The center of mass of the system (two girls) is constant, as the velocity of the center of mass of the system is also constant.
<u>The initial velocity of the system is zero, since both girls are at rest.</u> So the velocity of the total system at any point should be zero as well.
This is true, because there is no friction between the girls and the ground. Otherwise, the velocity of the center of mass wouldn't be constant.
Answer:
and
Magnitude of accleration is and the direction is
Explanation:
Average acceleration in the different axes
The components of the acceleration is and
The magnitude of acceleration
Direction
The magnitude of accleration is and the direction is .
C is the answer because contact force, is the only force mentioned that opposes the motion of the rock
Answer:
Hurricanes form over the warm ocean water of the tropics. When warm moist air over the water rises, it is replaced by cooler air. The cooler air will then warm and start to rise. This cycle causes huge storm clouds to form.
Explanation:
Answer;
B. Seafloor spreading
Explanation;
-Seafloor spreading is the process by which the Earth's lithospheric plates pull apart from each other, creating gaps that are filled with magma from the asthenosphere.
-Alfred Wegener was the scientist who proposed the idea of continental drift. Wegener gave four proofs to support his continental drift hypothesis. These includes;
- Similarities in coastlines
- Fossil records are similar on separate landmasses
- Geologic evidence similarities
- Climatic Change Similarities
The process of sea floor spreading was a confirmation that Wegener's hypothesis was correct.