What does it mean when there is a curved line going upwards on a graph? The principle is that the slope of the line on a position-time graph reveals useful information about the velocity of the object. If the velocity is changing, then the slope is changing (i.e., a curved line). If the velocity is […]
What is the best time to eat avocado?
Is Amazon forest still burning?
Is Amazon forest still burning? The entire Amazon, which spans nine countries, currently has 28,892 active fires, according to a fire monitoring tool funded in part by the US space agency, Nasa. When did the Amazon fire start? 2019 Amazon rainforest wildfires Locations of fires, marked in orange, which were detected by MODIS from August […]
Why does a disc overheat when it collapses?
Why does a disc overheat when it collapses? Why did the solar nebula heat up as it collapsed? As the cloud shrank, its gravitational potential energy was converted to kinetic energy and then into thermal energy. What happens when a nebula begins to contract? As the nebula contracts, it spins faster and flattens into a […]
What can a shadow tell you about the size of the source of light?
What can a shadow tell you about the size of the source of light? The location of a light source relative to the object casting shadows determines the size of the shadows. Alternatively, moving the light closer to the subject will enlarge the shadow, making the shadow much bigger than the subject itself, as shown […]
What are two defining characteristics of all waves?
What are two defining characteristics of all waves? Waves have a defined frequency As well as a defined speed, every wave has a frequency. This is the number of wavelengths that travel past a point in 1 second of time. Frequency is measured in hertz (waves per second). Does water absorb radio waves? Microwaves and […]
What should you do if there is no limit line?
What should you do if there is no limit line? If there is no limit line, stop before entering the crosswalk. If there is no crosswalk, stop before entering the intersection. You may turn right if there is no sign to prohibit the turn. Yield to pedestrians, motorcyclists, bicyclists, or other vehicles moving on their […]
What did Roosevelt do that had not done before conservation quizlet?
What did Roosevelt do that had not done before conservation quizlet? What did Roosevelt do which had never been done before in conservation? Roosevelt passed a law giving the President of the United States the authority to create national monuments from public lands to protect significant natural, cultural or scientific features. Who tried to convince […]
What is electric potential and its unit?
What is electric potential and its unit? It is defined as, An electric potential is the amount of work needed to move a unit positive charge from a reference point to a specific point inside the field without producing any acceleration. Its SI unit is j/c=Volts. How do you describe electric potential? Electric potential, the […]
Which two substances are formed when two amino acid molecules join together?
Which two substances are formed when two amino acid molecules join together? Peptide-Bond Formation. The linking of two amino acids is accompanied by the loss of a molecule of water. A series of amino acids joined by peptide bonds form a polypeptide chain, and each amino acid unit in a polypeptide is called a residue. […]