Why do sound waves travel faster in low density gas? In a gas, it is particularly important to know the temperature. This is because at lower temperatures, molecules collide more often, giving the sound wave more chances to move around rapidly. At freezing (0º Celcius), sound travels through air at 331 meters per second (about […]
What is the difference between a Monohybrid cross and a Punnett square?
What is the difference between a Monohybrid cross and a Punnett square? For a monohybrid cross (Table below), individual alleles are used, whereas for a dihybrid cross (Table below), pairs of alleles are used. A Punnett square for a monohybrid cross is divided into four squares, whereas a Punnett square for a dihybrid cross is […]
Why do we need deers?
Why do we need deers? Benefits to the Ecosystem Deer are considered a keystone species. This means that they directly impact the lives of other plants and animals. At the correct population, white-tailed deer increase biodiversity and encourage new plant growth. Their feces add to the soil encouraging plants to grow and thrive. What is […]
Is most responsible for the uneven heating?
Is most responsible for the uneven heating? Answer Expert Verified. The answer would be convection currents. Convection happens when atoms with a lot of heat energy in a liquid or gas transfer and get the room of particles with fewer heat energy. Heat energy is transported from hot places to cooler places by convection. How […]
Can a time independent magnetic field set into motion?
Can a time independent magnetic field set into motion? No. The force that a constant magnetic field exerts on a charged particle is dependent on the velocity of that particle. If the particle has zero velocity, it will experience no magnetic force and cannot be set in motion by a constant magnetic field. What do […]
What does the letter A stand for in DNA?
How do you explain energy transformation?
How do you explain energy transformation? Energy transformation is when energy changes from one form to another – like in a hydroelectric dam that transforms the kinetic energy of water into electrical energy. While energy can be transferred or transformed, the total amount of energy does not change – this is called energy conservation. How […]
Why does pressure increase when volume decreases?
Why does pressure increase when volume decreases? Decreasing the volume of a gas increases the pressure of the gas. Because the volume has decreased, the particles will collide more frequently with the walls of the container. Each time they collide with the walls they exert a force on them. More collisions mean more force, so […]
What is a example of contraction?
What is a example of contraction? A contraction is a word made by shortening and combining two words. Words like can’t (can + not), don’t (do + not), and I’ve (I + have) are all contractions. People use contractions in both speaking and writing. What is the difference between thermal expansion and contraction? Thermal expansion […]
What are the characteristics of Group 4 elements?
What are the characteristics of Group 4 elements? They have a high affinity for oxygen. They mainly have +4 oxidation state which is mainly due to the loss of all four ns2(n − 1)d2 valence electrons. The group 4 elements become denser, higher melting, and more electropositive as we move down the column in the […]