Answers by Christopher Turnbull
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Answers by Christopher Turnbull

Answers by Christopher Turnbull
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A dark-adapted human eye at the peak of its sensitivity (510 nm) can perceive a flash when 3.5 x 1015 J of energy enter the iris. How many photons is this? (In fact only 10% of these are absorbed by the
answered Jan 10, 2020
7 votes
206k views
A proton, moving west, enters a magnetic field of a certain strength. because of this magnetic field the proton curves upward. what is the direction of this magnetic field?
answered Dec 31, 2019
3 votes
43.0k views
What is the secondary meristem that produces wood toward the inside and bark toward the outside of a tree
answered Dec 15, 2019
5 votes
162k views
Natural gas and petroleum are mostly alkanes t/f
answered Sep 9, 2019
4 votes
69.5k views
The venus flytrap is different from most other green plants because it_____? A.Can digest insects B. Grows very slowly C. Survives without much water D. Lives off the roots of a tree
answered Mar 11, 2019
6 votes
189k views
Taylor is using money from her coin try to go to the fair. She wants to spend no more than $17 there. She has $8 in bills and some quarters to spend at most, how many quarters does Taylor have spend.
answered Dec 4, 2018
1 vote
122k views
"The enlightened ruler, in ruling his country, increases the guards and makes the penalties heavier; he depends on the laws and prohibitions to control the people" - Han Fei-zi Which Chinese belief system
answered Aug 19, 2018
4 votes
26.3k views
What is the probability of picking a vowel from the word confuse
answered Aug 5, 2018
2 votes
50.8k views
Find the sum of 12a + 7b, −6a − 9, and 14a − 12b. A) 20a - 5b - 9 B) 20a + 5b - 9 C) 20a - 5b + 9 D) 20a + 5b + 9
answered Jun 12, 2018
6 votes
13.3k views
How was mccarthy able to convince people that there was a true communist threat in the united states?
answered Mar 13, 2018
4 votes
150k views
The sum of a number b and 7.5 is 4.8
answered Jan 28, 2018
5 votes
68.8k views
The _______________ of two objects and their distance from each other determine the gravitational force between them. (Please help this is my last science question on my homework)
answered Apr 20, 2017
0 votes
21.0k views
Stem cells are important because _____. they can't differentiate they can differentiate into almost any other type of cell they never die they contain antibodies
answered Jun 22, 2016
2 votes
34.2k views
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