1). D. Combined Gas Law
3.) D. Pressure and temperature
4.) C. Boyles law
Answer:
Explanation:
mass of backpack, m = 8.1 kg
weight of climber, W = 656 N
height raised, h = 9.4 m
time, t = 28.2 min = 28.2 x 60 = 1692 second
weight of backpack, w = m x g = 8.1 x 9.8 = 79.38 N
Work done by the climber on the backpack = mg x h = 79.38 x 9.4 = 746.17 J
Wok done in lifting herself + backpack = (W + w) x h
= (656 + 79.38) x 9.4 = 6912.57 J
Power developed by the climber,P = Total work / time
P = 6912.57 / 1692 = 4.09 W
Answer:
We have two possible values for the second tuning fork
443Hz and 337Hz
Explanation:
When two waves of slightly different frequency interfere, they produce beats and the frequency of the beats (fb) is:
with f1 the frequency of the first tuning fork and f2 the frequency of the second tuning fork, so we should solve
note that it is the absolute vale of the rest between f1 and f2 so we have two equations and two possible values:
and
Kinetic energy is energy in action and potential energy is stored energy
C. diffraction
Diffraction by description is occurrence
where the sound wave is interrupted or interacts with certain obstructions or
barriers. According to Huygens-Fresnel principle, it is where the waves are interfered
by said circumstances during its travel in the confined specific space.
Furthermore, the amount of
size the wavelength is directly proportional to its interacted slit or barrier
thus, these behaviors and amount are positively correlated.
Moreover, it occurs in a variety
of waves –may it be sound waves, water waves or electromagnetic waves.