The sun is at the solstices on roughly June 21 and December 21.
June 21 is the "Summer" solstice in the Northern hemisphere.
At that time, the sun is directly overhead at a point on the Tropic
of Cancer, about 23.5° North of the equator.
December 21 is the "Summer" solstice in the Southern hemisphere.
At that time, the sun is directly overhead at a point on the Tropic
of Capricorn, about 23.5° South of the equator.
Answer:
The Rock
Explanation:
The paper is very thin and light so it has more air reisistance which will cause it to fall slower than the rock that has a larger density.
As we know that fundamental frequency is given as

here we know that

here we have
m = mass of wire = 5 g
l = length of wire = 90 cm


from above formula now



now we know that tension is due to weight of the sculpture so we will have


so its mass will be 11.76 kg
Answer:2t
Explanation:
Given
Jason throwing watermelon at speed v and it spend t time in air
time to reach max height

0=v-gt'

and time to reach bottom is also t'
t=2t'

For guy throws his watermelon at speed 2v
So total time in air will be


t''=2t
d = 0.221 mm is the spacing (in mm) between the two slits..
here,
wavelength = 589 nm
D = 150 cm = 1.5 m
y = 4 mm
then ,
y = mλD/d
for m = `1
0.004 = 589*10^-9 * 1.5/d
d = 2.21*10^-4 m
d = 0.221 mm
slit spacing is 0.221 mm
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