What part of Earth is darkest at solstice?why?

2 answers:

6 0

The mesohere,the boundary between the Thermosphere and Mesosphere, is technically the coldest place on Earth, with a temperature of −100 degrees Celsius (−148.0 degrees fa…<span>hrenheit; 173.1 K).

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Free_Kalibri [48]3 years ago

3 0

If the solstice is in northern hemisphere. then it is antarctica, and if it... wait if u look it up on google i promise u should beable to find because i had a question like that before and my teacher said to look it up

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Calculate the kinetic energy in joules of a 10g bullet moving at 300 m/s

mina [271]

Given: Mass m= 10 g convert to Kg m = 0.01 Kg Velocity V = 300 m/s

Required: Kinetic energy = K.E = 1/2 mV²

K.E = 1/2 (0.01 Kg)(300 m/s)²

K.E = 450 J

8 0

4 years ago

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Water drops fall from the edge of a roof at a steady rate. a fifth drop starts to fall just as the first drop hits the ground. a

Alchen [17]

The height of the roof is <u>3.57m</u>

Let the drops fall at a rate of 1 drop per t seconds. The first drop takes 5t seconds to reach the ground. The second drop takes 4t seconds to reach the bottom of the 1.00 m window, while the 3rd drop takes 3t s to reach the top of the window.

Calculate the distances traveled by the second and the third drops s₂ and s₃, which start from rest from the roof of the building.

$s_2=\frac{1}{2} g(4t)^2=8gt^2\\ s_3=\frac{1}{2} g(3t)^2=(4.5)gt^2$

The length of the window s is given by,

$s=s_2-s_3\\ (1.00 m)=8gt^2-4.5gt^2=3.5gt^2\\ t^2=\frac{1.00 m}{(3.5)(9.8m/s^2)} =0.02915s^2$

The first drop is at the bottom and it takes 5t seconds to reach down.

The height of the roof h is the distance traveled by the first drop and is given by,

$h=\frac{1}{2} g(5t)^2=\frac{25t^2}{2g} =\frac{25(0.02915s^2)}{2(9.8m/s^2)} =3.57 m$

the height of the roof is 3.57 m

8 0

4 years ago

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When using a series circuit to connect four small light bulbs, which statement is MOST accurate?

levacccp [35]

It's B.

The current passing through each bulb is the same. As you add more light bulbs, the current will decrease in each, but it will always be the same current passing through each one.

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4 years ago

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A 13.0 g piece of Styrofoam carries a net charge of â5.40 Î¼C and floats above the center of a large horizontal sheet of plastic

kati45 [8]

Answer:

σ =4.180×10^{-9} C/m^2

Explanation:

electric field due to non conducting sheet is

$E=\frac{\sigma}{2\epsilon_0}$