Answer:
B.7.5m/s2
Explanation:
average acceleration=change invelocity/time taken
a=(60-30)/4
=7.5m/s2
Answer:
Explanation:
Distance travelled by sound in going to target( insect ) and returning back = 2d ,d is distance of target .
time t = .06 s
speed = distance / time
344.9 = 2d / .06
d = 10.35 m
B, heat, is the correct answer. Heat is represented by a capital q in thermodynamic equations.
Answer:
A.
Explanation:
an atom that has most of its mass is electrons.
