Questions by Ben Kirby

Questions by Ben Kirby

A heat engine that propels a ship produces 400,000 lbf-ft/lbm while rejecting 300 btu/lbm of heat to a low temperature energy sink. Using what you know about heat engines, estimate its thermal efficiency?

asked Apr 11, 2024

1 answer

1 vote

161k views

2. Draw Inferences Why did the Nazi government try to win the loyalty of young Germans?

asked Apr 5, 2024

1 answer

3 votes

3.5k views

Calculate the average atomic mass of an element if 95.00% of all the atoms have a mass of 31.972 amu, 0.76% has a mass of 32.971amu and 4.22% have a mass of 33.967amu. Identify the element. Record your

asked Feb 19, 2024

1 answer

2 votes

9.5k views

Consider a finite set X and a rational preference relation ∼ on X. Let ≽ and be the derived indifference and strict preference relations, respectively. Provide examples.

asked Jan 12, 2024

1 answer

5 votes

190k views

What is the rectangular form of the parametric equations?x(t)=t+3, y(t)=2t^2−4, where t is on the interval [−4,0].Enter your answer, in standard form, by filling in the boxes.

asked Dec 24, 2023

1 answer

3 votes

130k views

Select the correct direct object pronoun to fill in the blank. Mis tíos me compraron un teléfono móvil nuevo. ____ uso todos los días. A Lo B La C Los D Las

asked Nov 25, 2023

2 answers

11 votes

135k views

One printing machine printed 700 books in 40 hours this week. A second printing machine printed for 25 hours this week but printed books twice the hourly rate of the first machine. How many books did the

asked Nov 3, 2022

1 answer

5 votes

169k views

a recipe needs 4/5 cup(s) of sugar for every 3 cups of flour. if you plan to use 7 1/2 cups of flour, how much sugar will you need?

asked Nov 1, 2022

1 answer

16 votes

230k views

What is the value for the rate of constant, k(with units)?

asked Sep 12, 2022

1 answer

8 votes

88.7k views

Sensory neurons are located in the O peripheral nervous system. O synaptic gaps. O endocrine system. O myelin sheath.

asked Aug 19, 2022

2 answers

14 votes

137k views

The picture shows a collection of eight baseballs and two footballs. What is the ratio of footballs to the total number of baseballs and footballs?

asked Jun 9, 2022

1 answer

1 vote

41.9k views

Find the area of the region bounded by y=1/x^2,y=4, and x=5. Use dy to differentiate and/or integrate.

asked May 17, 2022

1 answer

2 votes

71.8k views

How is sign language spread across North America and what are some career opportunities for people who know sign language today in the United States

asked Mar 17, 2022

1 answer

0 votes

153k views

Can anyone answer number 2? Thank you

asked Sep 28, 2021

1 answer

5 votes

158k views

An isosceles triangle has an angle that measures 120°. Which other angles could be in that isosceles triangle? Choose all that apply. 50°, 120°, 70°, 30°

asked Sep 6, 2021

2 answers

2 votes

136k views

Which graph represents a function?

asked Aug 25, 2021

1 answer

0 votes

27.5k views

What does the wallpaper symbolize in “The Yellow Wallpaper”?

asked Jul 10, 2021

2 answers

3 votes

35.0k views

Foxy Investigative Services is an investigative services firm that is owned and operated by Shirley Vickers. On November 30, 2018, the end of the fiscal year, the accountant for Foxy Investigative Services

asked Jun 18, 2021

1 answer

1 vote

153k views

What pressure will be exerted by 0.450 mol of a gas at 25°C if it is contained in a 0.650-L vessel?

asked Apr 24, 2021

1 answer

5 votes

22.1k views

Brushy Mountain Mining Company's coal reserves are being depleted, so its sales are falling. Also, environmental costs increase each year, so its costs are rising. As a result, the company's earnings and

asked Nov 2, 2020

1 answer

2 votes

159k views

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