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1. An oscilloscope shows a steady sinusoidal signal of 5 Volt peak to peak, which spans 5 cm in vertical direction on the screen. By tweaking the time sweep, the periodic saw-tooth voltage of the oscilloscope is replaced with voltage signal identical to the one that is detected. What will be observed on the oscilloscope screen?
2. On a 20 MHz oscilloscope as those utilized in class, the knob of the time sweep rate shows for the fastest setting the mark of 0.2 microseconds per main division in horizontal direction on the screen. How many full periods of a 5 MHz periodic signal will be observed in one main horizontal division?
a block of mass 5.0 kg is attached to a horizontal spring with spring constant 25.0 nm. the block is pulled a distance
The intensity of solar radiation at the top of the Earth's atmosphere is 1 272 W/m2. Assuming 60% of the incoming solar energy reaches the Earth's surface and you absorb 50% of the incident energy, find the amount of solar energy you absorb if you su..
A skateboarder, with an initial speed of 2.0 m/s, rolls virtually friction free down a straight incline of length 18m in 3.3s. At what angle is the incline oriented above the horizontal
An ideal spring has a spring constant k = 20 N/m. The spring is suspended vertically. What is the magnitude of the acceleration of the body when the extension of the spring is a maximum
Find what must be the resolving power of a grating allowing a spectral line at 601.10 nm to be distinguished from another line differing by 0.38 nm
An automobile moving at 15 m/s is approaching a factory whistle that has a frequency of 500 Hertz. Find what is the apparent frequency of the whistle as heard by the driver
A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.67 m above the bottom of the chute and with an initial speed of 1.97 m/s. The toy animal emerges horizontally from the bottom of the chute and continues sliding a..
The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius rh = 0.580 m and mass 4.89 kg, what should the radius of the disk be
A 270 m wide river flows due east at a uniform speed of 2.30 m/s. A boat with the speed of 8.4 m/s relative to water leaves the south bank pointed in a direction 38o west of north. What is (a) magnitude and (b) direction of the boat's velocity rel..
A positive charge of 5.50 C is fixed in place. From a distance of 3.70 cm a particle of mass 5.60 g and charge +3.10 C is fired by an initial speed of 80.0 m/s directly toward the fixed charge. How close to the fixed charge does the particle obtain b..
If the tension in a guitar string is increased by 20%, by what percentage does the wave speed increase
Dan is gliding on his skateboard at 4.00m/s . He suddenly jumps backward off the skateboard, kicking the skateboard forward at 6.00m/s, How fast is Dan going as his feet hit the ground
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