Archive day

March 30, 2026

1,875 public questions were asked on this day.

← Mar 29 Mar 31 →
An observer sees an airplane flying at a fast, constant speed along a straight path. However, a passenger inside the airplane feels that they are not moving at all. What explains the difference between what the observer...
Asked by FEWF 1 answer
A business produces apple juice and orange juice. When the price of orange juice has increased from $2.00 to $2.50 , how is the supply of apple juice modeled?(1 point) a shift of the supply curve for apple juice to the r...
Asked by puyr 1 answer
Hundreds, even thousands of stars may be easily observed in the night sky. What process produces the light from the stars? A. radioactive decay of heavy elements B. gravitational waves, released by the high mass of stars...
Asked by jdjadn 1 answer
Procym A and Procym B are two stars that are both eleven light years away from Earth. However, Procym A appears more than twice as bright as Procym B when viewed from Earth. Why is Procym A brighter? A. Procym A emits mo...
Asked by krmnf 1 answer
A triangle has side lengths 10 feet, 𝟤𝟢𝟧⎯⎯⎯⎯⎯⎯√square root of 205 feet, and 𝟣𝟢𝟧⎯⎯⎯⎯⎯⎯√square root of 105 feet. Is this a right triangle? Explain.
Asked by lutina 1 answer
The Voyager 1 spacecraft, shown below, completed its space exploration mission in 1980 and has since been traveling away from Earth at a speed of about 39,000 miles per hour. Image courtesy of NASA If no unbalanced force...
Asked by FEWF 1 answer
The diagram below shows a fusion reaction. A very large amount of energy is required to force the two smaller hydrogen atoms to combine to form helium-4. What is true about the balance of energy in a fusion reaction? A....
Asked by jdjadn 1 answer
give me an example of a physical trade barrier
Asked by Ke'Andre Dixon 1 answer
Scientists and engineers are testing three different satellites orbiting Earth. The scientists are able to use sensors to determine the gravitational force experienced by each satellite. Some of the data from each of the...
Asked by FEWF 1 answer
Procym A and Procym B are two stars that are both eleven light years away from Earth. However, Procym A appears more than twice as bright as Procym B when viewed from Earth. Why is Procym A brighter? A. Procym A is small...
Asked by jdjadn 1 answer
Which of the following is a determinant of supply?(1 point) the price of a complement in consumption consumer expectations the price of a substitute in consumption the price of a substitute in production
Asked by puyr 1 answer
During the life cycles of stars, hydrogen and helium are converted into heavier elements such as carbon and oxygen. Which of the following types of reactions causes these conversions? A. fusion B. convection C. nebular D...
Asked by j 1 answer
The smallest particles that make up matter A. can be seen with the unaided eye only at certain temperatures. B. are about the size of pinheads. C. are about the size of marbles. D. are too small to be seen with the unaid...
Asked by krmnf 1 answer
The data below were collected by scientists testing the force of gravity between two objects. Distance (m) Mass 1 (kg) Mass 2 (kg) Force (N) 0.10 100 150 0.00010 0.10 150 150 0.00015 0.10 100 300 0.00020 0.10 200 200 0.0...
Asked by FEWF 1 answer
The diagram below shows the life cycle of a "typical" star. In which stage will the star be characterized by nuclear reactions that produce all of the major elements on the periodic table up to iron? A. protostar B. inte...
Asked by j 1 answer
Neutrons are neutral. This means that A. neutrons are neither acidic nor basic. B. neutrons do not have a charge. C. neutrons do not have mass. D. neutrons are not involved in chemical reactions.
Asked by krmnf 1 answer
Scientists are observing and recording data for two different planets, planet X and planet Y. Each planet orbits a different star. The planets have the same mass. The scientists record the following data. Star X – Planet...
Asked by FEWF 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 jdjadn 1 answer
The table below describes processes that occur in stars at different stages of their life cycle. Life Stage Average Star Massive Star main sequence Hydrogen fuses into helium. Hydrogen fuses into helium. giant or supergi...
Asked by j 1 answer
The picture shows a model of a helium atom and a model of a lithium atom. Which of the following statements is true about the lithium and the helium atoms? A. Helium has more protons, neutrons, and electrons. B. Lithium...
Asked by krmnf 1 answer
How was the executive approach towards addressing the Great Depression different amongst President Herbert Hoover and President Franklin Roosevelt? Read p.101 President __________________ believed the states should provi...
Asked by ericsson 1 answer
Which statement best describes the gravitational force between two objects? A. The objects repel each other only if they have very different masses. B. The objects always repel each other. C. The objects always attract e...
Asked by FEWF 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 j 1 answer
The diagram below shows the life cycle of a "typical" star. In which stage will the star be characterized by nuclear reactions that produce all of the major elements on the periodic table up to iron? A. red giant B. main...
Asked by jdjadn 1 answer
The overall charge of the nucleus is A. neutral. B. sometimes positive and sometimes negative. C. positive. D. negative.
Asked by krmnf 1 answer