You are in a room with a strong magnetic field of B= 2 Tesla, which points directly in front of you. You have two identical balloons, but one is neutrally charged and the other is positively charged (+). When you drop the uncharged balloon, you observe if fall with a constant velocity of v=3.5 m/s.

When you drop the charged balloon you observe that it gets pushed toward the right with a force of 7.0 Newtons while it falls.

What is the charge of the balloon?

Fft review: linspace, fs, fftshift, nfft 1. generate one second of a cosine of w,-10hz sampled at f, = 100hz and assign it to x. define a tt as your time axis 2. take 64 points fft. 3. as you remember, the dft (which the fft implements) computes n samples of s2t where k-0,1,2, n -1. plot the magnitude of this 64-points fft at range 0 to 63, what do you think of this graph? 4â·to get the x-axis into a hz-frequency form, plot this 64-points fft between-50 to 50 (the 100hz sampling rate) and have n-points between them. 5. according to your figure, what frequency is this cosine wave at? 6. remember that the fft is evaluating from 0 to 2ď€. we are used to viewing graphs from-ď€ to ď€. therefore, you need to shift your graph. 7. now according to your shifted graph. what frequency is this at? 8. note that the spikes have long drop-offs? try a 1024-point dft. note that the peak is closer to 10 and the drop-off is quicker. although, now sidelobes are an issue

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.