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anonymous
 3 years ago
The table below compares the radioactive decay rates of two materials.
Material Original mass of material (in grams) Mass of material after 60 hours (in grams)
1 208 13
2 200 50
Based on the table, which of these conclusions is most likely correct?
The halflife of Material 1 and Material 2 are equal.
The halflife of Material 2 is double the halflife of Material 1.
The halflife of Material 2 is 30 hours more than the halflife of Material 1.
The halflife of Material 1 is 30 hours more than the halflife of Material 2.
anonymous
 3 years ago
The table below compares the radioactive decay rates of two materials. Material Original mass of material (in grams) Mass of material after 60 hours (in grams) 1 208 13 2 200 50 Based on the table, which of these conclusions is most likely correct? The halflife of Material 1 and Material 2 are equal. The halflife of Material 2 is double the halflife of Material 1. The halflife of Material 2 is 30 hours more than the halflife of Material 1. The halflife of Material 1 is 30 hours more than the halflife of Material 2.

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0OK. So far i've got that the Half life of Mat. 1 Decays every 15 hours Because it decayed Four times. Mat. 2 decays every 30 Since it decayed twice...

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0So it'd be from what im guessing B: Mat. 2's Half Life is Double Mat. 1s

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Australia is in the Southern hemisphere. Which of these statements is correct about Australia? It experiences the first day of summer at Position 3 and first day of winter at Position 1. It experiences the first day of summer at Position 1 and first day of winter at Position 3. It experiences the first day of autumn at Position 3 and first day of spring at Position 1. It experiences the first day of autumn at Position 1 and first day of spring at Position 3.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I THINK its B i can be wrong :/ Sorry dude But From the positioning and light thats what i seems to be

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Which of these provided the first evidence of life on Earth? ancient virus ancient bacteria nonliving molecules reproducing molecules
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