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In a Joule experiment, a mass of 6.51 kg falls through a height of 66.8 m and rotates a paddle wheel that stirs 0.68 kg of water. The water is initially at 15 degrees C. By how much does its temperature
answered
Aug 13, 2021
Physics
high-school
5
votes
136k
views
Which statement best completes this diagram on the fall of the Western Roman Empire? Germanic invaders attack the city of Rome. ? Odoacer overthrows the empire and declares himself king of Italy O A. The
answered
Jul 26, 2021
History
college
3
votes
958
views
What is the difference between an estimator and an ​estimate? A. An estimator is a function of a sample of data to be drawn randomly from a population whereas an estimate is the numerical value of the
answered
Jun 5, 2021
Mathematics
college
1
vote
86.8k
views
An igneous rock has small, dark crystals. Which statement also accurately describes this rock? It is an intrusive rock. It has a coarse texture. It was found on Earth’s surface. It was formed from slow
answered
May 25, 2021
Biology
high-school
5
votes
95.5k
views
Which hurricane hazard poses the greatest threat to people living along the coast?
answered
May 24, 2021
Biology
high-school
5
votes
204k
views
Identify the crime that Charlette Whitney was convicted of?
answered
Mar 17, 2021
History
high-school
3
votes
127k
views
Which of these shapes are polygons and which are not and why?
answered
Feb 14, 2021
Mathematics
middle-school
1
vote
88.5k
views
An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction, it has 82 protons and 84 neutrons. What happened to the atom? It accepted radiation in a chemical reaction.
answered
Feb 3, 2021
Chemistry
middle-school
0
votes
195k
views
X = -19 + 19 what is the value of the expression
answered
Jan 26, 2021
Mathematics
middle-school
6
votes
127k
views
A large city is also known as a
answered
Jul 5, 2020
History
middle-school
2
votes
219k
views
Where does the absorption of ATP occur
answered
Jun 13, 2020
Biology
high-school
0
votes
98.9k
views
Which structure holds the testes?
answered
Apr 11, 2020
Biology
middle-school
4
votes
8.2k
views
What is the slope of a line that is perpendicular to the line?
answered
Feb 8, 2020
Mathematics
middle-school
3
votes
163k
views
Why did athens/sparta become important cities of Greece
answered
Dec 11, 2019
History
college
4
votes
46.0k
views
What did thr americans do to the native americans during manfest destuny?
answered
Aug 14, 2019
History
high-school
3
votes
234k
views
The unit rate in kilometers per minute for 18.25km in 1 h 45 minute
answered
Jul 30, 2019
Mathematics
middle-school
0
votes
100k
views
Janet has 17 quarters and $13 in bills . How much total money does she have ?
answered
Jan 20, 2019
Mathematics
middle-school
3
votes
204k
views
Find 3 consecutive odd integers whose sum is 117
answered
Dec 11, 2018
Mathematics
high-school
5
votes
116k
views
Three people share seven brownise. how many does each person get?
answered
Jul 30, 2018
Mathematics
middle-school
5
votes
163k
views
To find your max heart rate Question 15 options: a) You must know your age. b) Count your heart rate after completing a period of exercise. c) Count your heart rate when your body is at rest. d) A and
answered
Jul 21, 2018
Health
high-school
7
votes
164k
views
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