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A Smart Car, which has a mass of 1000 kg, is going 20 m/s. When it hits the barrier, it stops with a time of 0.5 seconds. What is the change in momentum of the car?
answered
Apr 1, 2021
Physics
high-school
5
votes
146k
views
RESEARCH STUDY 8.2: Dr. Moynihan conducts a study examining the relationship between the number of panic attacks a person experienced in the past month, the number of nightmares experienced in the past
answered
Mar 29, 2021
Mathematics
college
3
votes
192k
views
How do you curate your life on social media? plz its due tm plz answr now
answered
Mar 1, 2021
English
high-school
5
votes
221k
views
The four-chambered heart of a humpback whale weighs approximately 430 pounds. 1 kilogram is equal to 2.2 pounds. What is the weight of the humpback whale’s heart in kilograms? .005 kilograms 195.5 kilograms
answered
Feb 21, 2021
Mathematics
middle-school
4
votes
103k
views
(pensar): "¡Buena idea!" Pero 4 (ser) terrible. Todo el día (llover), así que casi nos 6. (caer) muchas veces porque las calles 7. (estar) muy resbalosas (slippery) con el agua. Yo le 8. (suplicar) a mi
answered
Jan 20, 2021
Spanish
middle-school
3
votes
80.1k
views
Condelezza Co. manufactures two products, A and B, in two production departments, Assembly and Finishing. Condelezza Co. expects to produce 10,000 units of Product A and 20,000 units of Product B in the
answered
Dec 14, 2020
Business
college
6
votes
117k
views
Is the simplified form of 23 · 2.16 rational? Yes No
answered
Sep 9, 2020
Mathematics
middle-school
1
vote
224k
views
Je à la patience et à la persévérance.
answered
Aug 18, 2020
French
middle-school
4
votes
60.7k
views
Should a president die in office, which official succeeds the president if the vice president is unable to assume the role? A. secretary of state B. first lady C. Speaker of the House D. attorney general
answered
May 8, 2020
Social Studies
middle-school
4
votes
106k
views
Which molecules are inorganic compounds?
answered
Mar 3, 2020
Biology
middle-school
2
votes
127k
views
Acids naturally present in food are safe to eat because they usually are
answered
Nov 4, 2019
Chemistry
middle-school
0
votes
56.4k
views
1.What was one cause of the Spanish-American War? President McKinley's enthusiasm for going to war Theodore Roosevelt's interest in increasing the size of the navy the belief that a Spanish mine had blown
answered
Sep 19, 2019
History
high-school
1
vote
71.1k
views
At a parent teacher association (pta) meeting at your school, several parents complain about the moral decline of today's youth and argue that the school should be giving regular lectures about the importance
answered
May 27, 2019
Social Studies
high-school
5
votes
199k
views
Suppose you have the job of assigning the proper number of House of Representatives seats for various states. To do that, you must know the _______ in that state. A. population B. apportionment C. number
answered
Sep 1, 2018
History
middle-school
3
votes
150k
views
How many valence electrons does a neutral atom of silicon have??
answered
Aug 28, 2018
Chemistry
high-school
4
votes
166k
views
Imagine you are writing today as one of the following,an explorer,the kings or queens of the imperial powers, a native inhabitant at the time of "discovery" a colonist or a 21st century inhabitant of the
answered
Jul 10, 2018
History
middle-school
3
votes
157k
views
Which of the following is a clue of a chemical change? A. balls of wax form when melted wax is poured into ice water B. gas bubbles form in boiling water C. a gas forms when vinegar and baking soda are
answered
Jun 26, 2018
Biology
high-school
3
votes
213k
views
Which structure "unzips" the double helix of dna? which structure "unzips" the double helix of dna? trna mrna rna polymerase an anticodon?
answered
May 15, 2018
Biology
high-school
2
votes
135k
views
For the vectors in the figure, with a = 16, b = 12, and c = 20 what are (a) the magnitude and (b) the direction of a×b
answered
Feb 4, 2018
Physics
college
6
votes
133k
views
A lot is in the shape of a trapezoid. The sum of the bases is 180 feet. If the area of the lot is 8,100 square feet, what is the distance across the lot, i.e. the altitude of the figure? The altitude of
answered
Dec 28, 2017
Mathematics
high-school
3
votes
152k
views
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