You are in a large parking lot and you've lost your car! On your keys, you have a button to make your car honk its horn. You know that the sound of your horn has a frequency of 350Hz and that the wavelength of the sound
waves is 0.25m. Being a bright and competent physics student, you
obviously open the timer and calculator apps on your phone and perform
a little experiment. If it takes 0.50 seconds for you to hear the sound of
your horn, how far away is your car?

First, launch the video below. you will be asked to use your knowledge of physics to predict the outcome of an experiment. then, close the video window and answer the question at right. you can watch the video again at any point. part a as in the video, we apply a charge +q to the half-shell that carries the electroscope. this time, we also apply a charge –q to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? view available hint(s) as in the video, we apply a charge + to the half-shell that carries the electroscope. this time, we also apply a charge – to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? it deflects more than it did at the end of the video. it deflects the same amount as at end of the video. it does not deflect at all. it deflects less than it did at the end of the video. submit

Determine the maximum r-value of the polar equation r =3+3 cos 0

Positrons are spontaneously emitted from the nuclei of