Answers by Richard Povinelli
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Answers by Richard Povinelli

Answers by Richard Povinelli
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An electromagnetic wave has a frequency of 1.0 × 10¹⁴ Hz. What is the wavelength of the wave? Use the equation λ = v/f and the speed of light as 3.0 × 10⁸ m/s. 1) 3.3 × 10⁵ m 2) 3.3 × 10⁻⁸ m 3) 3.0 × 10⁻⁶
answered Nov 28, 2024
1 vote
217k views
Id various functions performed within an EHR system
answered Jul 19, 2024
1 vote
64.2k views
Show that multiplication by A=[[3,1],[6,2]] maps each point in the plane onto the line y=2x.
answered May 26, 2024
0 votes
120k views
The residents of a seaside town have noticed that on days when the local ice cream parlor is busy, a lot of people go swimming in the ocean. They wonder whether going swimming causes people to crave ice
answered May 1, 2024
3 votes
76.8k views
What is the significance of the 19 gear on the Antikythera Mechanism? A) Calculates synodic cycles B) Represents lunar months C) Predicts solar declination D) Measures solar years
answered Mar 19, 2024
3 votes
171k views
A sealed tank with a volume of 29.1 L contains 7.21 moles of propane gas at a temperature of 23.7 K. What is the pressure of the gas? A. 2.42 atm B. 3.14 atm C. 4.81 atm D. 5.96 atm
answered Feb 21, 2024
3 votes
220k views
If f(a)=3ᵃ and the input is -3, what is the output as a fraction?
answered Feb 9, 2024
1 vote
53.2k views
Find the volume of the sphere. Give the answer in terms of pie and rounded to the nearest cubic foot.
answered Feb 27, 2023
1 vote
122k views
!!!!!!!!!!!!H-E-L-P!!!!!!!!!! How do index fossils help scientists establish how old rocks and other fossils are? In your answer, include fossils in the same layer of rock, in a lower layer of rock, and
answered Dec 28, 2022
3 votes
74.8k views
Which of the following statements is TRUE? A. The pituitary gland is located in the brain. B. The pineal gland is located in the brain. C. The adrenal glands are capped on the kidneys. D. All of the above
answered Nov 24, 2022
11 votes
199k views
Find the value of x and y please need help
answered Nov 15, 2022
6 votes
67.8k views
HELPPPP!!!!! Why do speakers use the same language register as their audience? OA. To create rapport between them OB. To pretend that they come from the same area O c. To pretend that they come from the
answered Sep 9, 2022
2 votes
42.3k views
Students are selling grapefruits and nuts for a fundraiser. The grapefruits cost $1 each and a bag of nuts cost $5 each. They sold 80 items and made $200. The graph of the number of items sold is given
answered Aug 26, 2022
3 votes
186k views
Help please which those questions
answered Aug 20, 2022
10 votes
114k views
. Which one is NOT an INDICATOR that a chemical has occurred A) Gas is produced B) Precipitate is produced C) Change in energy D) Change in mass
answered Jul 1, 2022
6 votes
118k views
18. The two triangles below are similar. What is the perimeter of triangle XYZ? Last question on Math for today, I promise, but please help.
answered May 10, 2022
5 votes
152k views
Given the points X(-9, 2) and Y(5, -4), find the length of XYXY. Round to the nearest hundredth.
answered Apr 13, 2022
5 votes
221k views
Helen had 46 books. Then she went to a book sale and bought b more books. Write an expression that shows how many books Helen has now.Type an asterisk ( * ) if you want to use a multiplication sign and
answered Apr 7, 2022
4 votes
81.6k views
Why is desalination an important process?
answered Mar 15, 2022
2 votes
181k views
Round 4358 to the nearest thousand
answered Dec 19, 2021
3 votes
62.4k views
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