subject
Physics, 22.09.2019 18:50 helen3327

Acar travels along a straight line at a constant speed of 56.0 mi/h for a distance d and then another distance d in the same direction at another constant speed. the average velocity for the entire trip is 33.5 mi/h. (a) what is the constant speed with which the car moved during the second distance d?
i started out with vxavg=(vxi+vxf)/2 and came out to 11 and it was wrong. if anyone has a good website i can use to learn physics it would be much appreciated.

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 23:30
Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?
Answers: 1
question
Physics, 22.06.2019 04:30
Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.
Answers: 3
question
Physics, 22.06.2019 10:00
Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
Answers: 2
question
Physics, 22.06.2019 12:20
Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.
Answers: 2
You know the right answer?
Acar travels along a straight line at a constant speed of 56.0 mi/h for a distance d and then anothe...
Questions
question
Mathematics, 27.05.2020 22:03
question
Mathematics, 27.05.2020 22:03
question
Mathematics, 27.05.2020 22:03
question
Mathematics, 27.05.2020 22:04
question
Mathematics, 27.05.2020 22:04
question
Biology, 27.05.2020 22:04
Questions on the website: 13722362