Archive day

December 5, 2025

2,979 public questions were asked on this day.

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When you trip, your foot stops, but your body continues to move forward. Which statement best explains why this happens?(1 point) Responses Newton's Second Law of Motion pushes your body forward after your foot stops. Ne...
Asked by jayc 1 answer
In which situation would the momentum of a moving object increase?(1 point) Responses A force acting in the direction of the object’s motion is removed from the object. A force acting in the direction of the object’s mot...
Asked by jayc 1 answer
Question Which situation describes a non-contact force changing the speed of an object?(1 point) Responses a ball accelerating as it rolls down a hill a ball accelerating as it rolls down a hill a drawer opening when a u...
Asked by jayc 1 answer
The Punnett square above shows a cross between two plants. Both plants were heterozygous for dark green leaves (G) and carry the recessive trait for light green leaves (g). In this cross, 50% of the offspring will be — R...
Asked by ney 1 answer
Which option is the force with the greatest magnitude?(1 point) Responses the force needed to lift a textbook the force needed to lift a textbook the force needed to lift a pencil the force needed to lift a pencil the fo...
Asked by jayc 1 answer
In guinea pigs, the allele for rough coat (R) is dominant over the allele for smooth coat (r). A homozygous dominant guinea pig and a homozygous recessive guinea pig are mated. Which of the following shows the possible g...
Asked by ney 1 answer
Use the graph showing the motion of a person over time to answer the question. The vertical axis is labeled, position from home (km), and ranges from a 0 km to 14 km. The horizontal axis is labeled, time (minutes) and la...
Asked by jayc 1 answer
Question Twin colts were born from a black mare and a black stallion. One colt was black, one was brown. What is the most likely reason for the difference in the traits of the two colts? Responses A mutagen altered the s...
Asked by ney 1 answer
The size of a hydrogen atom is about 1.2×10−10 m across. The size of an oxygen atom is 0.000000000152 m across. What is the difference between the sizes of these atoms in scientific notation?(1 point) Responses 3.2×10−11...
Asked by jayc 1 answer
The U.S. national debt was $2.9617×1013 in 2021 and $3.98×1011 in 1971. Find how much the debt increased in the 50-year period. (1 point) Responses $1.0183×1024 1.0183 dollars times 10 superscript 24 baseline $2.9219×101...
Asked by jayc 1 answer
In a particular species of pea plant, yellow seeds are dominant over green seeds. If a plant has green seeds, it must be
Asked by ney 1 answer
In fruit flies, long wings are dominant over short wings. Which of the following must be true about the genetic material of a fruit fly with long wings? Responses It must be homozygous for long wings OR homozygous for sh...
Asked by ney 1 answer
Subtract 4.66×10−5−7.34×10−7 (1 point) Responses 4.5866×10−5 4.5866 times 10 superscript negative 5 baseline 2.68×102 2.68 times 10 squared −2.68×102 negative 2.68 times 10 squared −4.5866×10−5
Asked by jayc 1 answer
A species of plant produces purple or white flowers. The results of crossing a purple and a white flower and two white flowers are shown in the diagram. Which of the following terms best describes the purple flowers? Res...
Asked by ney 1 answer
For a species of tropical plant, leaves with green veins (G) are dominant over leaves with red veins (g). A plant that has green veins (GG) is crossed with a plant with red veins (gg). What percentage of offspring will h...
Asked by ney 1 answer
15: What role does potassium iodide play in the electrolysis process? 16: Why is it important to use inert electrodes in this experiment? 17: How can you visually identify the formation of iodine during the electrolysis?...
Asked by prince 1 answer
Matt is walking at 1.25 miles per hour to the east. Jaime is walking at 1.25 miles per hour to the south. Which statement describes the movement of Matt and Jaime?(1 point) Responses They have different speeds but the sa...
Asked by jayc 1 answer
Question Two postal delivery workers have different routes. They both travel from the post office, to neighborhoods to deliver mail, and then back to the post office. Which statement must be true about the two postal del...
Asked by jayc 1 answer
1. A first-order reaction A → products is studied. If doubling [A] from 0.10 M to 0.20 M increases the observed rate constant k from 0.12 s⁻¹ to 0.12 s⁻¹ (unchanged), what does this imply about the reaction order with re...
Asked by prince 1 answer
Question Sam is comparing the half-life of two isotopes of uranium. The half-life of Uranium-238 is 4.5×109 years. The half-life of Uranium-233 is 1.6×105 years. He computed how much greater the half-life of Uranium-238...
Asked by jayc 1 answer
In government class, Nadia computed the amount of debt of the federal government after a third of it was paid in 1995. The calculator displayed the number 3.28E12. What is this number in scientific notation?(1 point) Res...
Asked by jayc 1 answer
In chemistry class, Carlos calculated the number of molecules in 100 moles. The calculator displayed the number 6.02E25. What is the number of molecules in 100 moles in scientific notation?(1 point) Responses 25×106.02 2...
Asked by jayc 1 answer
Question Jim’s music library on his phone holds 1,900 songs. The songs have an average time of 3.5 minutes. Use scientific notation to find the total number of seconds the playlist will play. Express the answer to the ex...
Asked by jayc 1 answer
Kendra finds the dimensions of a sticky note. She uses a meter stick to determine that the dimensions are 1.25×10−8 meters wide by 2.5×10−6 meters long. Use scientific notation to write the dimensions in millimeters. Not...
Asked by jayc 1 answer
a car traveling 90km/hr is brought to rest over 120m. what is the avereage lineir acceleration of the car in m/sZ
Asked by jordan 1 answer