Questions by Ketty

Questions by Ketty

R = 8.314 L kPa K-1 mol-1 and 1 atm = 760 mmHg = 101.3 kPa(i) A car tyre has a volume of 10 litres. At 25°C the tyre is inflated to 200 kPa withnitrogen gas. What is the mass of nitrogen gas in the tyre?

asked Nov 9, 2023

1 answer

25 votes

212k views

In the country of United States of Heightlandia, the height measurements of ten-year-old children areapproximately normally distributed with a mean of 55.7 inches, and standard deviation of 1.9 inches.

asked Aug 20, 2023

1 answer

20 votes

328k views

Kat plays a surfing video game with a friend. Each player earns 50 points for each trick he performs, but loses 40 points each time he falls off the surfboard. Last week, Kat had 6 stunts and 9 falls.

asked Mar 10, 2023

1 answer

25 votes

397k views

How is a spectroscope used in astronomy?

asked Jan 23, 2023

1 answer

2 votes

330k views

Directions: List and describe three types of people that lived in Ancient Greece.

asked Sep 14, 2022

1 answer

45 votes

148k views

Write the complex number z = 12+12i in polar format. Select the correct choice below and fill in the answer box(es) Type an exact answer. Using radicals as needed

asked Jul 26, 2022

1 answer

30 votes

428k views

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