Recent activity by Ricardo Costeira

Question

Find two points on the parabola where binormal vectors are different. Explain why it does not contradict the fact that a cubic parabola is planar. a) Centripetal acceleration b) Gravitational potential

answered Nov 23, 2024

1 answer 50.8k views

What is the meaning of the word 'flaccid'? 1) strong 2) weak 3) feeble 4) solid 5) taut

answered Oct 20, 2024

1 answer 176k views

How would you formally greet an elderly person in the afternoon? A. Salut! B. Bonjour! C. Bonsoir ! D. Bon après-midi! C. Au revoir! À tout à l’heure! D. Bon soir!

answered Jul 11, 2024

1 answer 138k views

A northern right whale migrates from warm waters off Florida to cooler waters off Nova Scotia, Canada. In which area do you think more thermal energy would move from the whale to its environment? Explain.

asked Jul 8, 2024

1 answer 107k views

How many members of the 2nd Continental Congress signed the Declaration of Independence?

answered Jun 29, 2024

1 answer 147k views

& metalic discs of radius 0.75cm and thickness 0.2cm are melted to obtain 508.68 cm² of metal. Find the number of discs melted?

asked Mar 16, 2024

1 answer 214k views

What are the three primary categories into which levels of physical activity can be grouped?.

asked Sep 19, 2023

1 answer 49.7k views

The main part of your program has the following line of code. answer = divide(30,5) which function finds the quotient of 30 and 5 and returns 6?

answered Sep 15, 2023

1 answer 82.5k views

Which evolutionary mechanism caused the increase in dark-colored Biston betularia moths in England in the 1800s? A. Gene Flow B. Genetic Drift C. Natural Selection D. Overproduction

asked Sep 2, 2023

1 answer 231k views

Are these lines parallel perpendicular or neither y=2x+7 and y=-2x+5

answered Aug 25, 2023

1 answer 201k views

Why did Animal Farm fail essay?

answered Aug 17, 2023

1 answer 59.0k views

Which method of finding exoplanets involves directly viewing the planet through various types of telescopes?

answered May 30, 2023

1 answer 234k views

Matt's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 50 espressos in all, 24 of which were single-shot. What percentage of the espressos were single-shot?

answered May 2, 2023

2 answers 199k views

Did Ford make the right choice in pardoning Nixon? Why or why not?

answered Apr 7, 2023

1 answer 71.1k views

Lee and Sandy work at the same factory. Lee earns $17 per hour, and Sandy earns $20 per hour. Factory manager announces that all the workers' wages will go up by $1.50 per hour, starting next month.What

asked Feb 17, 2023

1 answer 162k views

Paraphrase the following passage. Juliet. How art thou out of breath when thou hast breath To say to me that thou art out of breath? The excuse that thou dost make in this delay Is longer than the tale

asked Nov 16, 2022

2 answers 92.7k views

Jane climbs the stairs to the first floor all by herself in a certain time. If the next time she rides the elevator to the first floor then which of the following statements is true? The work done in both

answered Oct 16, 2022

1 answer 53.8k views

The sum of the digits in a two-digit number is 16. The digit in the tens place is 2 more than the digit in the ones place. The system of linear equations shown below represents this situation, where x

asked Oct 11, 2022

1 answer 65.0k views

What are some possible sources of motion that could be harnessed for a generator?

answered Sep 10, 2022

2 answers 197k views

Henry uses exclamation marks and questions in this section. What is the result? How do the two work together?

answered Jul 29, 2022

1 answer 74.5k views

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