A small block, with a mass of 350 g, starts from rest at the top of an incline. It slides without friction down the incline, around the inside
of the loop, and continues on the level track to the right. The height
of the incline is 110 cm, and the radius of the loop is 15 cm.
Adam?
To: Every
Type mess
a. Find the initial potential energy of the block.
b. Find the velocity of the block at the bottom of the loop.
c. Find the velocity of the block at the top of the loop.
d. What is the normal force on the block at the bottom of the
loop?
e. What is the normal force on the block at the top of the loop?

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

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above