All of them will have the same density
Answer:
He solved Ptolemy’s model by proving elliptical orbits.
He proved Galileo’s calculations were incorrect.
He determined that planets move faster when closer to the Sun.
The one fact that needs to be mentioned but isn't given anywhere on or around the graph is: The distance, on the vertical axis, is the distance FROM home. So any point on the graph where the distance is zero ... the point is in the x-axis ... is a point AT home.
Segment D ...
Walking AWAY from home; distance increases as time increases.
Segment B ...
Not walking; distance doesn't change as time increases.
Segment C ...
Walking away from home, but slower than before; distance increases as time increases, but not as fast. Slope is less than segment-D.
Segment A ...
Going home; distance is DEcreasing as time increases. Walking pretty fast ... the slope of the line is steep.
Penghitungan intensitas suara dengan satuan desibel menggunakan rumus "10 log x" yang berarti setiap 10 desibel akan menghasilnya bunyi dengan intensitas 10x lipat, 20 desibel = 100 kali lipat, dan seterusnya. Rumus yang dipakai untuk soal ini adalah:
<span>TI2 = TI1 − 10 log ( <span>r2</span>/<span>r1</span> )<span>2
</span></span>Intensitas suara 2= intensitas suara 1 + 10 log (lokasi 2/lokasi 1)
Intensitas suara 2= 50dB + 10 log 50m/3m = 50db + 10 log 16.7= 62.21dB
Answer:
viscosity = 0.051725 N/m-s
Explanation:
Given data
diameter = 0.3 m
u(r) = 0.4/r - 1000r m/s
diameter d1 = 2 cm = 0.02 m
diameter d2 = 4 cm = 0.04 m
rotation = 500 rpm
power = 1 w
to find out
fluid viscosity
solution
we have given
u(r) = 0.4/r - 1000r m/s
du/dr = -0.4/r² + 1000
here r = 0.3 /2 = 0.01 m
du /dr = -0.4/(0.01)² + 1000
du/dr = 5000
and
so velocity is
force = viscosity ( 2π×r×L) du/dr
0.026 / 0.02 = viscosity ( 2π× 0.02×0.04) 5000
viscosity = 0.051725 N/m-s