What is the medium that sound waves travel through when a person speaks?
a. air
c. voca...
Physics, 25.12.2019 10:31 doodlean4969
What is the medium that sound waves travel through when a person speaks?
a. air
c. vocal cords
b. your tongue
d. it does not use a medium
Answers: 1
Physics, 22.06.2019 01:30
Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor
Answers: 1
Physics, 22.06.2019 13:40
Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.
Answers: 2
Physics, 22.06.2019 14:40
The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg ยท s2). use g = 9.80 m/s2 and calculate the mass m of the ball.
Answers: 1
Physics, 22.06.2019 23:00
The gun from the crime scene shows tool marks where the serial numbers are ground off. there are also tool marks on the bullets left behind. what information can the tool marks on the bullets and gun provide about the crime? what type of evidence does this information provide, individual or class?
Answers: 1
English, 09.11.2020 19:50
History, 09.11.2020 19:50
Mathematics, 09.11.2020 19:50
Mathematics, 09.11.2020 19:50
English, 09.11.2020 19:50
English, 09.11.2020 19:50
History, 09.11.2020 19:50