All categories

3 years ago

How does the sun rise and set on the spring and fall equinox

Chemistry

1 answer:

Tom [10]3 years ago

8 0

Answer:

Actually, the Sun only rises due east and sets due west on 2 days of the year the spring and fall equinoxes! On other days, the Sun rises either north or south of "due east" and sets north or south of "due west." ... At the fall equinox, the Sun rises due east and sets due west.

Explanation:

Sunrise and Sunset - Stanford Solar Center

You might be interested in

5 The element sulfur is classified as a (1) metal (3) nonmetal (2) metalloid (4) noble gas

Alexxandr [17]

Sulfur is a non-metal, being in the third period, in group 6

7 0

3 years ago

Read 2 more answers

How much energy is released by the decay of 3 grams of 20Th in the following reaction 230 Th - 226Ra + 'He (230 Th = 229.9837 g/

wolverine [178]

Answer : The energy released by the decay of 3 grams of 'Th' is $2.728\times 10^{-15}J$

Explanation :

First we have to calculate the mass defect $(\Delta m)$ .

The balanced reaction is,

$^{230}Th\rightarrow ^{226}Ra+^{4}He$

Mass defect = Sum of mass of product - sum of mass of reactants

$\Delta m=(\text{Mass of Ra}+\text{Mass of He})-(\text{Mass of Th})$

$\Delta m=(225.9771+4.008)-(229.9837)=1.4\times 10^{-3}amu=2.324\times 10^{-30}kg$

conversion used : $(1amu=1.66\times 10^{-27}kg)$

Now we have to calculate the energy released.

$Energy=\Delta m\times (c)^2$

$Energy=(2.324\times 10^{-30}kg)\times (3\times 10^8m/s)^2$

$Energy=2.0916\times 10^{-13}J$

The energy released is $2.0916\times 10^{-13}J$

Now we have to calculate the energy released by the decay of 3 grams of 'Th'.

As, 230 grams of Th release energy = $2.0916\times 10^{-13}J$

So, 3 grams of Th release energy = $\frac{3}{230}\times 2.0916\times 10^{-13}J=2.728\times 10^{-15}J$

Therefore, the energy released by the decay of 3 grams of 'Th' is $2.728\times 10^{-15}J$

5 0

4 years ago

What is an example of radioactive decay

Orlov [11]

Types of decay | Radioactive decay | Khan Academy▶ 17:02https://www.khanacademy.org/.../radioactive-dec...Khan AcademyAlpha, Beta, Gamma Decay and Positron Emission. ... Radioactive decay. Mass defect and binding energy ...

3 0

3 years ago

In one scene in the movie The Godfather II,

Ad libitum [116K]

10 cm in a cube to find volume is 10 by 10 by 10
1000 cm cubed

10 cm is 0.1 m
0.1 times 0.1 times 0.1 is 0.001 metres cubed
19,300 times 0.001 is
19.3 kg
approximately 193newtons
yes it could be passed around casually

5 0

3 years ago

Which statement best describes the composition of the ancient supercontinent Pangaea?

irina [24]

Answer:

C. Pangaea contained all of Earth's continental crust.

Explanation:

Pangaea is the name given to the supercontinent that contained almost all of the landmass on Earth. The remaining area was ocean.

4 0

3 years ago