Oscilloscope time base problem. you are asked to display a 1 khz sine wave signal on the screen. since the period t is related to the frequency f by the formula t = 1 / f, the period of this wave is 1/(103/s)=1ms, so a reasonable setting for the "time/div" dial is 1 ms/div. but suppose you select an inappropriate setting for the time/div dial by mistake. what would you see if you set the dial on 1 μs/div? 100 ms/div?

During your summer internship for an aerospace company, you are asked to design a small research rocket. the rocket is to be launched from rest from the earth's surface and is to reach a maximum height of 910 m above the earth's surface. the rocket's engines give the rocket an upward acceleration so it moves with acceleration of 16.0 m/s2 during the time t that they fire. after the engines shut off, the rocket is in free fall. ignore air resistance.

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.