Archive day

March 30, 2026

1,875 public questions were asked on this day.

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Which of the following best describes the dust, gas, and celestial bodies of the Milky Way Galaxy? A. They experience gravity only if they have significant mass. B. The farther away they are from the center of the galaxy...
Asked by FEWF 1 answer
Use this reaction to answer the question. CH3CH2OH + 3 O2 → 2 CO2 + 3 H2O Use the table of molar masses to complete the activity. Molar Mass (g/mol) of Hydrogen, Carbon, and Oxygen Element Molar Mass (g/mol) carbon 12.01...
Asked by cool boy 1 answer
Explain the relationship between the environment, variation, and selection. Changing can cause certain traits to be favored through . This can lead to changes in .
Asked by gguttd 1 answer
what is the definition of a physical trade barrier
Asked by Ke'Andre Dixon 1 answer
A person is singing in the shower. They notice that as certain notes become very loud, the shower walls vibrate. Which statement describes this effect? (1 point) The note is one of the natural amplitudes for the shower....
Asked by :3 [SillyAnonymousCat] 1 answer
model of an atom is shown above. The blue dots represent electrons, and the red dot represents the nucleus. This model accurately represents A. that a single atom may have many nuclei. B. that electrons are found everywh...
Asked by krmnf 1 answer
put this in 10 grader levelBoth the Treaty of Versailles and the Great Depression were important causes of the interwar collapse of liberal democracy and the rise of authoritarian regimes, and they helped set the conditi...
Asked by aubrey 1 answer
Which of the following describes a major role of gravity in star formation? A. Gravity compresses gases at the center of a solar nebula until temperatures are high enough for nuclear fusion to occur. B. Gravity causes an...
Asked by j 1 answer
Which of the following statements best analyzes challenges that are specific to the future of the African continent?(1 point) Responses By 2030, almost half of the world’s population are expected to live in countries aff...
Asked by a 1 answer
When a guitar string is plucked, what part of the standing wave is found at the fixed ends of the string?(1 point) the harmonics the antinodes the nodes the resonance
Asked by :3 [SillyAnonymousCat] 1 answer
Which of the following expressions is equivalent to 3(x + 4) + 2x? 5x + 12 3x + 6 5x + 4 3x + 12
Asked by hey arnold 1 answer
By completing the square, calculate the center and radius of the circle given by the equation 2x2+2y2−10x+4y=8 .(1 point) center: (2.5,−1) ; radius: 11.25−−−−√ center: (5,−2) ; radius: 2 center: (10,−4) ; radius: 4 cente...
Asked by bob 1 answer
The overall charge of the nucleus is A. positive. B. neutral. C. negative. D. sometimes positive and sometimes negative.
Asked by jdjadn 1 answer
The image below shows a protoplanetary disk, which is a spinning disk made up of the gases and dust that surround a recently-formed star. Image courtesy of NASA What does a protoplanetary disk most likely have in common...
Asked by FEWF 1 answer
Which of the following best explains the impact of colonialism on post-colonial Africa?(1 point) Responses Superpowers funded proxy conflicts between socialist and capitalist factions. Superpowers funded proxy conflicts...
Asked by a 1 answer
he diagram below shows a fusion reaction. What is true about the balance of mass in a fusion reaction? A. The mass of the products cannot be measured. B. The mass of the products is equal to the mass of the reactants. C....
Asked by j 1 answer
According to the law of universal gravitation, any two objects are attracted to each other. The strength of the gravitational force depends on the masses of the objects and their distance from each other. Many stars have...
Asked by FEWF 1 answer
A stationary source produces a sound wave at a frequency of 100 Hz. The wave travels at 1125 feet per second. A car is moving toward the sound source at a speed of 100 feet per second. What is the wavelength of the stati...
Asked by :3 [SillyAnonymousCat] 1 answer
Hundreds, even thousands of stars may be easily observed in the night sky. What process produces the light from the stars? A. gravitational waves, released by the high mass of stars B. nuclear fusion, in which atomic nuc...
Asked by j 1 answer
How is it hoped that the African Continental Free Trade Area will increase economic activity and efficiency?(1 point) Responses by restricting Chinese investment in African infrastructure by restricting Chinese investmen...
Asked by a 1 answer
Nucleosynthesis is the process in which nuclei fuse together to form different elements. The table summarizes nucleosynthesis in stars. Life Stage Main Nucleosynthesis Process main sequence Hydrogen is fused into helium....
Asked by FEWF 1 answer
What were 3 goals of President Roosevelt’s NEW DEAL plan? Read p.101 The following are three goals of President Roosevelt New Deal plan meant to get the country back on track: 1. 2. 3.
Asked by ericsson 1 answer
Students should be paired or put into small groups and together they should use the provided word document to select one Regulatory or Advisory Agency from the list. After selecting the agency they will research their we...
Asked by pepe 1 answer
evolution occurs too slowly to be detected, scientists often study numerous stars in different phases of their lives to infer what happens to them over time. One observation that scientists have made is that the initial...
Asked by j 1 answer
Giant stars evolve faster than smaller stars do, and they have a hotter core that creates heavier elements through fusion. When the core collapses in giant stars, due to their own gravity, they explode and violently blow...
Asked by FEWF 1 answer