Heat, like sound, is kinetic energy. Molecules at higher temperatures heave more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly.
So the answer is A.
8 phases. I really hope you get the right answer!
Answer:
Photon
Explanation:
Electrons don't weigh very much at all, and don't account for the chemical mass of an element. However, Photons don't have ANY mass.
Answer: 98 N
Explanation:
The weight of an object is given by

where m is the mass of the object, and g is the gravitational acceleration.
In this problem, m=10 kg is the mass of the lemur, while the gravitational acceleration is
. Therefore, the weight of the lemur is
