Recent activity by Vitaliy Yanchuk

Question

What is the wavelength, in nanometers, of the bright line of the hydrogen emission spectrum corresponding to the transition from n=6 to n=2?

asked Dec 12, 2024

1 answer 51.0k views

The table below lists the masses and volumes of several pieces of the same type of metal. There is a proportional relationship between the mass and the volume of the pieces of metal. Volume (cubic centimeters)

answered Nov 26, 2024

1 answer 58.7k views

Paulette has $140 in five dollar bills and $10 bills the number of $10 bills is one less than twice the number of five dollar bills how many of each does she have

answered Nov 5, 2024

1 answer 6.2k views

If x and y are in direct proportion and y is 35 when x is 7, find y when x is 6.

asked Sep 27, 2024

2 answers 116k views

What advice does the young Pole give to the new prisoners regarding how to "move away from death" and "survive"?

answered Sep 23, 2024

1 answer 155k views

Write the equation in standard form, give the center, and give the radius x^2+y^2+4x-8y=5

answered Sep 15, 2024

1 answer 60.2k views

What does a 95% and 99% level of statistical significance mean? Explain in terms of Standard Deviation. Draw a chart to explain your reasoning.

answered Jul 29, 2024

1 answer 58.7k views

How do prostaglandin inhibitors work to delay labor? a) Increase prostaglandin synthesis b) Inhibit uterine contractility c) Stimulate cervical ripening d) Enhance fetal lung maturity

asked Jul 27, 2024

1 answer 92.3k views

Why didn't scientific thinkers immediately accept the Copernican model of the solar system? A. They had irrefutable evidence that the Earth-centered model was correct. B. Copernicus's model did not make

answered Jul 21, 2024

1 answer 157k views

If Wents placed his agar blocks only halfway on the cut surfaces of grass shoots with their tips removed, what should he have observed? A) No change in the growth of the grass shoots. B) Increased growth

asked Jul 16, 2024

1 answer 57.8k views

When only ice crystals exist in a cloud, the cloud is said to be: A) Cirrus. B) Cumulus. C) Stratus. D) Nimbostratus.

asked Jul 11, 2024

1 answer 29.1k views

Describe the roles of NADH in the enzyme reactions of the Krebs Cycle and the respiratory (electron transport) chain/chemiosmosis.. 1. Electron carrier in the Krebs Cycle. 2. Substrate for NADH dehydrogenase.

answered Mar 18, 2024

1 answer 114k views

The average U.S. unemployment rate fluctuates around ______ and the National Restaurant Association estimates that the number of jobs in the industry will grow by ______ over the next decade. a) 5%, 5%

asked Mar 7, 2024

1 answer 191k views

- Find the electric field a distance z above the midpoint between two equal charges, q, a distance d apart. What is the field if z≫d ? E 1 R 1 =(0−0) u ^ +(0+ 2 d ) y ^ R 1 = 2 dx y+zz ∣R 1 ∣= ( 2 d )

asked Mar 5, 2024

1 answer 79.2k views

How to write this number in standard form (8*10)+(6*10,000)+(3*100,000)(2*100)+(9*1,000)+(7*1)

answered Jan 13, 2024

1 answer 145k views

assume you prefer a portfolio with an expected standard deviation of 25%. you can invest in the market and at the same time invest/borrow money at the risk-free rate. the expected return on the market

answered Jan 10, 2024

1 answer 12.2k views

What does the william blake think of formal education?

asked Dec 20, 2023

1 answer 150k views

How many times larger is 2 x 10^12 than 5 × 10^6

asked Sep 11, 2023

1 answer 14.8k views

Let h = number of hours to bike 165 mi. Let m = number of miles biked in 7 hr. Which proportion can be used to determine the value of h?

answered Aug 16, 2023

1 answer 184k views

Suppose that there are two types of tickets to a show: advance and same-day. Advance tickets cost $30 and same-day tickets cost $20. For one performance,there were 40 tickets sold in all, and the total

asked Aug 3, 2023

1 answer 97.1k views

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