Archive day

December 16, 2025

2,706 public questions were asked on this day.

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Which of these describes digital transmissions and not analog transmissions? (1 point) Responses smooth smooth continuous continuous sine waves sine waves 1s and 0s 1s and 0s
Asked by sh 1 answer
Two similar waves are traveling through the same medium. Wave A has a frequency that is 9 times that of Wave B. (1 point) Responses λA = 9λB λ A = 9 λ B λA = 1/3 λB λ A = 1/3 λ B λA = 1/9 λB λ A = 1/9 λ B λA = λB λ A = λ...
Asked by sh 1 answer
Two boys have made a cup and string device to try to communicate. The sound wave from the voice of the boy on the right will have to travel through the cup, the match stick holding the string, the thread and the other cu...
Asked by sh 1 answer
John attaches a large spring to a small spring for a job that he has to complete. He notices that as the wave travels from spring 1 to spring 2, its wavelength is decreased by 50%. Which statement describes the change in...
Asked by sh 1 answer
The speed of a wave is 4 ms, and its wavelength is 2 meters. What is the period of the wave?(1 point) Responses .8 seconds .8 seconds .2 seconds .2 seconds .5 seconds .5 seconds 2 seconds 2 seconds
Asked by sh 1 answer
Which phrase correctly defines the amplitude of a wave?(1 point) Responses The vertical distance from the crest or trough of a wave to equilibrium The vertical distance from the crest or trough of a wave to equilibrium T...
Asked by sh 1 answer
When the string of a guitar is plucked, waves move in both directions along the string, interfering with each other. Sometimes these waves interact to make nodes and antinodes. What are these kinds of waves called?(1 poi...
Asked by sh 1 answer
A stationary source produces a sound wave at a frequency of 100 Hz. The wave travels at 925 feet per second. A car is moving toward the source at a speed of 25 feet per second. What is the wavelength of the stationary so...
Asked by sh 1 answer
How do the frequencies and the speeds of yellow and blue light compare?(1 point) Responses The frequency of blue light is greater than that of yellow light, while the speed of yellow light is faster than that of blue lig...
Asked by sh 1 answer
What is one way that light waves differ from sound waves?(1 point) Responses Light waves do not require a medium to propagate. Light waves do not require a medium to propagate. Light waves travel by oscillation. Light wa...
Asked by sh 1 answer
Which statement best describes the refractions of light as it moves from air to glass?(1 point) Responses Light undergoes diffraction due to the difference in the speed of light in air and glass. Light undergoes diffract...
Asked by sh 1 answer
. Identify the tense & aspect​ Many students are considering starting college earlier. Present continuous tense continuous aspect. Present continuous​ ​ ​ Researchers have found benefits to early college enrollment. Pres...
Asked by yo 1 answer
Explain why inclusive education is important in the Zambia education system. With current references
Asked by Arnold 1 answer
Prove that (sec$)^2+(cosec$)^2=(sec$)^2×(cosec$)^2
Asked by John 1 answer
Prove That (sec$-cosec$)/sec$+cosec$= (tan$-1)/tan$+1
Asked by John 1 answer
Hi!
Asked by Sofia 1 answer
Rearranging by rewriting in a 7th graders response The medical profession benefits from diverse viewpoints, as evidenced by the texts "Dr. Arthur Conan Doyle Cracks Tuberculosis 'Remedy'" and "Day We Discovered Cause of...
Asked by Grace 2 answers
Rewrite in a 7th graders response The medical profession benefits from diverse viewpoints, as evidenced by the texts "Dr. Arthur Conan Doyle Cracks Tuberculosis 'Remedy'" and "Day We Discovered Cause of 'White Death'". T...
Asked by Grace 1 answer
Rewrite in a 6th graders response The medical profession benefits from diverse viewpoints, as evidenced by the texts "Dr. Arthur Conan Doyle Cracks Tuberculosis 'Remedy'" and "Day We Discovered Cause of 'White Death'". T...
Asked by Grace 1 answer
Rewrite the f in a 6th grader’s response The medical profession benefits from various perspectives, as evidenced by the texts. One cause-and-effect relationship can be seen in the way advancements in medical technology l...
Asked by Grace 1 answer
Rewrite in a 9th graders writing President Obama's point of view is that the Selma marchers were essential figures whose perseverance contributed to the pursuit of American equality. He uses "heroes" to elevate them to m...
Asked by Grace 1 answer
Rewrite in a 6th graders writing President Obama's viewpoint is that the Selma marchers were essential figures whose perseverance contributed to the pursuit of American equality. He uses "heroes" to elevate them to moral...
Asked by Grace 1 answer
22. Chinese food cooked with Peruvian ingredients is called "chifa".(1 point) Responses True True False False Question 23 23. How do you say, "We play tennis" in Spanish?(1 point) Responses Juego al vóleibol. Juego al vó...
Asked by i 1 answer
21. How do you say "The teachers are busy" in Spanish? (Remember the differences from our units about the verbs "ser" & "estar.")(1 point) Los maestros
Asked by i 1 answer
Match the correct Spanish pronoun to the correct conjugation of the verb "comer".(1 point) Put responses in the correct response input area to answer the question. Select a response, navigate to the desired input area an...
Asked by i 1 answer