Answer:
The Earth's axis is tilted from perpendicular to the plane of the ecliptic by 23.45°. This tilting is what gives us the four seasons of the year - spring, summer, autumn (fall) and winter. Since the axis is tilted, different parts of the globe are oriented towards the Sun at different times of the year.
Explanation:
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Answer:
net force is positive downward..B
Answer:
0.87 m
70.6 Hz
Explanation:
= length of the rope = 1.30 m
= order of the harmonic = 3
= Wavelength
Wavelength is given as


= 0.87 m
= Speed of transverse wave = 61.4 m/s
= frequency of the third harmonic
frequency is given as


= 70.6 Hz
The coin will normally land on our hand.
Answer:
0.315758099469 m
Explanation:
m = Mass of cylinder = 1.5 kg
= Density of water = 1000 kg/m³
V = Volume = Ah
A = Area = 
k = Spring constant = 31 N/m
x = Displacement
g = Acceleration due to gravity = 9.81 m/s²
Here the forces are conserved
Weight of cylinder = Buoyant force + Spring force

The length of the submerged cylinder is 0.315758099469 m