Questions by PhilDulac

Questions by PhilDulac

What is the wavelength (in nm) of light having a frequency of 7.8 × 1013 Hz? What is the frequency (in Hz) of light having a wavelength of 5.54 × 102 nm?

asked Jan 21, 2018

1 answer

2 votes

219k views

15/20 equals 3/5 are the fractions equivalent

asked May 28, 2017

2 answers

2 votes

191k views

In 2013, the population of the state of New York was approximately 19.65 million, and the population of New York City was 8,406,000. In 2013, how many people in New York state did not live in New York

asked Apr 14, 2017

2 answers

4 votes

72.7k views

Which of the following statements BEST explains how African slaves were first treated when they arrived in the English colonies? A. They were forced into a lifetime of slavery. B. They were beaten and

asked Feb 10, 2017

1 answer

3 votes

114k views

What was the role of trade that developed in west africa?

asked Jan 6, 2017

1 answer

1 vote

37.7k views

Which describes one reason for the end of long cattle drives? A. New cattle ranches grew up in eastern states near major cities. B. New railroad lines across the Great Plains made it cheaper to ship cattle

asked Apr 3, 2016

1 answer

5 votes

82.4k views

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