Which of the following statements are true? check all that apply. a. atoms are always moving. b. the faster atoms are moving, the less kinetic energy they have. c. an atom is always found in the exact same position. d. atoms have kinetic energy.

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

Avoltaic cell converts chemical energy to

Ascientific blank must be testable and capable of being proven false?