While walking to work in Boston shortly after sunrise you notice that the water level in the bay is exceptionally low. Based on
this very low low-tide and the dark cloudless sky last night, what is the current phase of the moon
1 answer:
As you make your way to work in Boston just after dawn, you observe that the bay's water level is surprisingly low. Considering this significantly low tide and the dark, clear sky from last night, the moon is currently in its waxing crescent phase. Among the eight lunar phases, the waxing crescent occurs after the new moon phase.
The lunar phases are a result of the moon's orbit positioned between the Earth and the Sun. The moon's surface reflects sunlight, which reaches Earth at varying angles, depending on the moon's orbit position. This creates the perception of the moon appearing to wax and wane.
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Answer:
The typical weight of a human heart is approximately 0.93 lbs.
Explanation:
Based on this,
the heart's weight constitutes about 0.5% of total body mass.
Total human weight = 185 lbs
Let the entire body weight be represented as w and the heart's weight as .
We aim to determine the heart's weight for a human
Using the provided information
Where, h = heart weight
w = human weight
The final weight of a human heart is 0.93 lbs.
Answer:
5.7 m
Explanation:
AD = length of the ladder = L = 8 m
AB = the position of the ladder's center of mass = (0.5) L = (0.5) 8 = 4 m
AC = distance of the climber from the bottom of the ladder = x
W = weight of the ladder = 240 N
= weight of the climber = 710 N
F = force exerted by the wall on the ladder
N = normal force acting on the ladder from the ground =?
By applying force equilibrium in the vertical direction
N = + W
N = 710 + 240
N = 950 N
μ = Coefficient of static friction = 0.55
f = static friction force on the ladder
Static friction force can be expressed as
f = μ N
f = (0.55) (950)
f = 522.5 N
The equation for force along the horizontal axis reads
F = f
F = 522.5 N
using torque equilibrium around point A
F Sin50 (AD) = W Cos50 (AB) + ( Cos50 (AC))
(522.5) Sin50 (8) = (240) Cos50 (4) + (710) Cos50 (x)
x = 5.7 m
Answer:
The coefficient of kinetic friction is found to be 0.432.
Explanation:
Comprehensive steps and derivations with necessary substitutions are detailed in the attached document.
