Physics, 23.06.2021 06:40 creepycrepes
Children make toy telephones by sticking each end of a long string through a hole in the bottom of a paper cup and knotting it so it will not pull out. When the spring is pulled taut, sound can be transmitted from one cup to the other. How does this work? Why is the transmitted sound louder than the sound traveling through air for the same distance?
Answers: 2
Physics, 22.06.2019 14:10
Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you canât balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.
Answers: 2
Physics, 22.06.2019 16:30
Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?
Answers: 2
Physics, 22.06.2019 19:20
Two kilograms of air within a pistonâcylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
Physics, 22.06.2019 19:30
Ashot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0 âabove the horizontal. the shot hits the ground 2.08 s later. you can ignore air resistance. how far did she throw the shot?
Answers: 2
Children make toy telephones by sticking each end of a long string through a hole in the bottom of a...
Mathematics, 29.10.2020 01:00
Mathematics, 29.10.2020 01:00
English, 29.10.2020 01:00
Mathematics, 29.10.2020 01:00
Health, 29.10.2020 01:00
English, 29.10.2020 01:00
Physics, 29.10.2020 01:00
Mathematics, 29.10.2020 01:00
Social Studies, 29.10.2020 01:00
Mathematics, 29.10.2020 01:00
English, 29.10.2020 01:00
Geography, 29.10.2020 01:00
Mathematics, 29.10.2020 01:00