Physics
Physics, 25.01.2020 06:31, AngelH2650

Amarching band consists of rows of musicians walking in straight, even lines. when a marching band performs in an event, such as a parade, and must round a curve in the road, the musician on the outside of the curve must walk around the curve in the same amount of time as the musician on the inside of the curve. this motion can be approximated by a disk rotating at a constant rate about an axis perpendicular to its plane. in this case, the axis of rotation is at the inside of the curve. consider two musicians, alf and beth. beth is four times the distance from the inside of the curve as alf. knowing that: (a) if beth travels a distance s during time δt, how far does alf travel during the same amount of time= (1/4)s? (b) if alf moves with speed v, what is beth's speed? speed, in this case, means the magnitude of the linear velocity, not the magnitude of the angular velocity. a) 4v b) v c) v/4

answer
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 17:00, itzia00
Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
Answers: 1
image
Physics, 22.06.2019 00:30, Waakkaa
Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass
Answers: 1
image
Physics, 22.06.2019 03:50, mom2acjm
Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?
Answers: 1
image
Physics, 22.06.2019 09:40, zackarygonzalez1028
Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly
Answers: 3
Do you know the correct answer?
Amarching band consists of rows of musicians walking in straight, even lines. when a marching band p...

Questions in other subjects:

Konu
Mathematics, 19.10.2021 14:00
Konu
Mathematics, 19.10.2021 14:00