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:
All of the above is the answer.
<span>(3) It cannot perform metabolic processes.</span>
Answer:
d
Explanation:
Fishes are aquatic vertebrates having scales, pharyngeal gill slits and paired fins. ... Most fish are ectothermic ("cold-blooded"), allowing their body temperatures to vary as ambient temperatures change. fishes have scales that covers the skin of fishes. Thus, the correct answer is option D.
Sue's bones have become brittle,
fragile, and thin. Her doctor would most likely diagnose her with osteoporosis.
Osteoporosis is an age related bone condition that occurs due to the reduction of
the bone’s density and the body’s inability to produce as much bone as it initially
did. The bones become weaker and increase the risk of fractures, especially in
the spinal vertebrae.
