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How much heat is required to raise the temperature of 20 g of ice from -20.0 C to 0.0 C? The specific heat of ice is 2.03 J/(g•C)
asked
Feb 26, 2021
Chemistry
middle-school
1
answer
0
votes
224k
views
Which best describes the motion of the object between 1 and 4 seconds? The object has decreasing acceleration and increasing velocity. The object has positive acceleration and eventually stops. The object
asked
Jan 24, 2021
Physics
middle-school
2
answers
0
votes
36.0k
views
What is the additive inverse of the expression below, where are a and b real numbers? 2a+b A. -1 B. 0 C. 2a-b D. -2a-b
asked
Dec 13, 2020
Mathematics
college
1
answer
2
votes
73.4k
views
Which quadrilaterals appear tohave 2 pairs of opposite sides that are parallel?
asked
Nov 20, 2020
Mathematics
middle-school
1
answer
5
votes
108k
views
Most biologists believe that _____. A.there are more commensal relationships than we think B.there are no true parasitic relationships in nature C.animals are probably harmed or helped by commensalism
asked
Aug 1, 2020
Social Studies
middle-school
1
answer
3
votes
203k
views
You love to play soccer! You make a shot at the net 8 times during a game! Of those 8 attempts, you score twice. What percent of the time did you score?
asked
Apr 26, 2020
Mathematics
middle-school
2
answers
4
votes
146k
views
NPV and IRR, Mutually Exclusive Projects For discount factors use Exhibit 12B-1 and Exhibit 12B-2. Techno Inc. intends to invest in one of two competing types of flexible manufacturing systems: FLEX-1K
asked
Apr 16, 2020
Business
college
1
answer
2
votes
105k
views
A golfball is hit from ground level with an initial vertical velocity of 64 ft/s. After how many seconds will the ball hit the ground? a. 3 seconds b. 4 seconds c. 5 seconds d. 6 seconds
asked
Apr 28, 2019
Mathematics
high-school
1
answer
2
votes
186k
views
I need help with my homework! It says to divide 15 pounds of rice into four unequal measures using ounces. I don't get it. Does anybody else? If so, please help me!! Thanks!
asked
Dec 10, 2018
Mathematics
college
1
answer
4
votes
209k
views
Which scientist discovered the two radioactive elements radium and polonium?
asked
Nov 12, 2018
Physics
high-school
1
answer
5
votes
231k
views
Determine which ordered pair is a solution of y = x + 2/5
asked
Oct 28, 2018
Mathematics
middle-school
2
answers
2
votes
62.5k
views
If the maximum of 63 years is accidentally recorded as 630 years, how will this affect the mean?
asked
Sep 9, 2018
Mathematics
college
1
answer
5
votes
200k
views
A 33-year-old pregnant client asks the nurse about testing for birth defects that are safe for both her and her fetus. which test would the nurse state as being safe and noninvasive
asked
Jul 14, 2018
Biology
high-school
1
answer
4
votes
57.1k
views
Read the paragraph from "Sixteen" and answer the question. And that was last Thursday. Tonight is Tuesday. Tonight is Tuesday and my homework is done and I darned some stocking that really didn't need
asked
Feb 25, 2018
English
high-school
2
answers
0
votes
78.6k
views
If an organism has 40 chromosomes in its gametes, how many chromosomes are in it somatic cells
asked
Feb 16, 2018
Biology
high-school
1
answer
0
votes
190k
views
Given that the population of quarters has a mean weight of 5.67g and standard deviation of 1.34g, what do you know about the mean of the sample mean
asked
Aug 13, 2017
Mathematics
college
1
answer
0
votes
211k
views
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