Answer: a) 4.15m/s
b) 11.22m/s
c) 14.76m/s
Explanation: d).
Sometimes it is possible to neglect an external impulse if it is not in the direction of interest.
Also, a small force acting over a long time can easily provide more impulse
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Answer:
Communication shows a leader´s ability to express and listen to ideas.
Explanation:
Human beings innately possess social needs, such as belonging to a society, relating to them, belonging to groups, among others. Communication is a key element and in order to carry out this need, organizations keep communicating with each other, internally or externally.
One of the main characteristics of a leader is the ability to communicate and achieve positive influence among the people in his charge. If there is good communication, there is good leadership, because of this communication is essential for an effective leadership.
Answer: C. Nitrogen cycling is the process by which nitrogen from the atmosphere and decomposed organic materials are converted by soil bacteria to compounds that can be assimilated by plants.
Explanation:
The nitrogen cycling is a community level property. Also the decomposition of organic material is also a community effort.
The nitrogen cycling is performed by the soil microbes which convert the atmospheric nitrogen into forms used by the plants. The plants provide nourishment to herbivores and omnivores. This way nitrogen is cycled within different organisms and the spheres of earth.
The soil bacteria decompose the organic materials making the nutrients available to the plants.