Recent activity by Petre Popescu

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A 70 kg astronaut is moving at 12 m/s and collides with a 60 kg astronaut moving at -5 m/s. What is the total momentum of both astronauts before they collide? a) 840 kg·m/s b) 180 kg·m/s c) -240 kg·m/s

answered Jan 4

1 answer 51.9k views

A litter of pigs is born. Three are female, and three are male. Which set of symbols correctly describes the sex of each piglet?

answered Jan 3

1 answer 102k views

Axiomatic Semantics (continued) *An assertion before a statement states the...... *An assertion following a.... *A weakest precondition is the least....

answered Dec 17, 2024

1 answer 109k views

What is a key requirement for strengthening the lumbar extensors? A)Consistent body posture B)Dynamic weight training C)Controlled, progressive resistance D)Isometric exercises

asked Dec 1, 2024

1 answer 104k views

What happens to the positrons that are generated in the proton-proton fusion chain? a) They annihilate with electrons. b) They escape into space. c) They form neutrinos. d) They combine with protons.

asked Oct 20, 2024

1 answer 136k views

You decide to put $820 in a savings account with a simple interest rate of 0.4%. Use the formula I=Prt to determine the amount of interest you will make after 3 years.

answered Oct 11, 2024

1 answer 31.9k views

What kind of vendor does Santiago admire the morning after he is robbed by the young man in Tarifa? a) A spice merchant b) A crystal seller c) A weaver of wool d) A jewelry maker

asked Sep 27, 2024

1 answer 81.5k views

a use case description is the best place to start for the design of the forms for a user interface. T/F

answered Aug 16, 2024

1 answer 168k views

Your driving ability becomes impaired after how many alcoholic drinks?

answered May 28, 2024

1 answer 84.1k views

Which of the following will qualify as incorporator in a corporation? A. A minor B. A corporation C. Partnership D. Foreigner

answered Mar 13, 2024

1 answer 142k views

Marketing and research about apple product, this the info and quations need to answer by 1 paragraph for each, Marketing Information and Research Research Question about apple, Describe an important question

asked Feb 21, 2024

1 answer 157k views

Indicate the effect each account has on retained earnings?

asked Jan 23, 2024

1 answer 220k views

The biggest advantage of publicity is that • it has negligible possibilities of negative repercussions. • it allows for personal interactions between a company and its customers. • it is usually credible.

answered Jan 13, 2024

1 answer 194k views

Darwin proposed that natural selection occurs in an environment by? 1) favoring those individuals with the most favorable acquired characteristics. 2) favoring heritable features that make the organism

asked Jan 4, 2024

1 answer 101k views

What is the slope of the line containing (-2,5) and (4,-4)?A.3/2B.-3/2C. -2D. 2

asked Dec 5, 2023

1 answer 143k views

Based on these documents, what was primarily taught at the Tuskegee Normal and Industrial Institu (1) A humanities curriculum including poetry and public speaking (2) Courses in the structure of U.S. government

answered Oct 22, 2023

1 answer 87.5k views

Name 3 key principles of the constitution

answered Aug 16, 2023

2 answers 23.0k views

Plant cells and some animal cells have vacuoles, however, plant cell vacuoles are... A. much higher in quantity. B. much larger in size. C. very rare.

asked Jul 20, 2023

1 answer 34.7k views

Which situation show a nonrenewable resource in use

asked Apr 11, 2023

1 answer 198k views

Briefly describe a green chemistry success story

asked Apr 8, 2023

1 answer 117k views

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