Answer:
C. 500 J
Explanation:
Given;
potential energy of the kids at the top of the trampoline, P.E = 1,000 J
⇒At the top of the trampoline, the kids have only potential energy.
⇒On half way down, the kids have both kinetic energy and potential energy.
⇒At the bottom of the trampoline, the kids have only kinetic energy.
Based on the statements above, the kinetic energy of the kids half way down is calculate as;
P.E + K.E = 1000 J
Base on law of conservation of energy, P.E = K.E
2 K.E = 1000 J
K.E = ¹/₂ x 1000 J
K.E = 500 J.
Answer:
minerals
In addition to its mechanical functions, the bone is a reservoir for minerals (a "metabolic" function). The bone stores 99% of the body's calcium and 85% of the phosphorus. It is very important to keep the blood level of calcium within a narrow range.
Answer: Both species must have competed for the same niche. The surviving species is better adapted or adapted better and outcompeted the other.
Explanation:
Answer:
They are alike because they perform Voluntary and Involuntary Controls.
Explanation:
1). Skeletal muscle: The skeletal muscle brings about movement by pulling on the skeletal parts of which they are attached. This is the type of movement that is responsible for locomotion.
2). Smooth Muscle: This muscle is composed of elongated spindle-shaped cells which are grouped into bundles or sheets. They are least specialized muscle cells and are under the control of the autonomic nervous system.
3). Cardiac muscle: This muscle is only found in the walls of the heart. The muscle cells are branched and connected to one another by special discs. These cells helps the cells to contract and relax in unison so that the heart can pump rhythmically.
