Correct question:
Which reaction describes a beta emission? 2659Fe→ 2759Co + −10e, 88226Ra→ 86222Rn + 24He, 94239Pu + 24He→ 96242Cm + 01n, 54118Xe→ 53118I + +10e
Answer:
2659Fe→ 2759Co + 1e
Step-by-step explanation:
General equation for beta decay is given as;
where;
A is the atomic mass of the element
z is atomic number of the element
X is the parent atom
Y is the daughter element
β is beta emission
In beta emission, there is loss of one electron and zero proton, the will cause the daughter element to gain on electron in order to balance the reaction.
Based on beta decay equation above, we select the reaction that describes beta emission.
2659Fe→ 2759Co + 1e
Here;
A = 59
z = 26
z + 1 = 27
Answer:
Chocky milk
Step-by-step explanation:
Yummy
Considering ΔADE and ΔACB as similar triangles, the distance across the lake is, <em>DE = 107.1 ft</em>.
<h3>Similar Triangles</h3>
- Similar triangles are formed if a line segment that is parallel to a one of the sides of a triangle joins the two other sides of the triangle.
- For triangles that are similar to each other, the ratio of their corresponding sizes are congruent.
The image shows two similar triangles, ΔADE and ΔACB. Therefore:
AD/AC = DE/CB
75/(75 + 100) = DE/250
75/175 = DE/250
DE = 107.1 ft
Therefore, considering ΔADE and ΔACB as similar triangles, the distance across the lake is, <em>DE = 107.1 ft</em>.
Learn more about similar triangles on:
brainly.com/question/2644832
Answer:
There are 7 cups of soup left in the pot
Step-by-step explanation:
Firstly, we need to know the number of cups of soup made.
Since 1 quarts = 4 cups, the number of cups her 4 quarts is would be 4 * 4 = 16 cups
Now she served 1.5( 1 1/2 = 1.5) to 6 people, her total servings is thus 6 * 1.5 = 9 cups
What is remaining is thus 16 cups - 9 cups = 7 cups
Answer:
<h2>4.32 × 10^6</h2><h2 /><h2 />
= 4.32 × 10^6
(scientific notation)
= 4.32e6
(scientific e notation)
= 4.32 × 10^6
(engineering notation)
(million; prefix mega- (M))
= 4320000
(real number)