You examine two weather maps of your area for two different days. One map shows isobars that are closely spaced; the other shows isobars that are far apart. Predict the difference in weather conditions for those days.

a) Isobars that are closely spaced indicate a large pressure difference over a
small area and light winds. Isobars that are far apart indicate a small pressure
difference over an area and strong winds.

b) Isobars that are far apart indicate a large pressure difference over a small
area. Isobars that are closely spaced indicate a small pressure difference over
an area.

c) Isobars that are far apart spaced indicate a large pressure difference. Isobars
that are closely spaced indicate a small pressure difference.

d) Isobars that are closely spaced indicate a large pressure difference over a
small area and strong winds. Isobars that are far apart indicate a small
pressure difference over an area and light winds.

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

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

Asuppose a suitcase has a mass of (m) 30 kg and a net force (n) of 10 kg*m/s. what is the acceleration rate of the suitcasein m/s? show your work to support your answer.