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Q1. An Oscilloscope grid is calibrated so that one square represents 1-V vertically and 1 msec horizontally. If the height of a square wave pulse display is 6 squares, the width of the pulse is 7 squares, and the cycle of the wave is 16 squares, the average value of the pulse is?A) 1.73 vB) 4.32 vC) 2.63 vD) 3.97 vQ2. When working with pulse generators, you should be aware that a monostable multivibrator is also a?A) collector - coupled multivibratorB) astable multivibratorC) bilateral compressorD) one shot multivibrator
Co-60 is often used as a radiation source in medicine. It has a half-life of 5.25 years. How long, after a new sample is delivered, would the activity have decreased to about 1/3 its original value.
A particular organ pipe can resonate at 231 Hz, 385 Hz, and 539 Hz, but not at any other frequencies in between. Is it an open or a closed pipe? What is the fundamental frequency of this pipe.
Compute coefficient of kinetic friction
A 120 granite cube slides down a 45 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 210 steel cube at rest.
At time t=0 a grinding wheel has an angular velocity of 28.0 rad/sec. It has the constant angular acceleration of 35.0 rad/sec^2 until a circuit breaker trips at time t=1.80. From then on, the wheel turns through an angle of 433 as it coasts to the s..
Consider a rotational axis at point where the tire contacts the ground, directed vertical to the plane of the paper. Find out the magnitude of the man's force for both designs.
A string of 13 identical Christmas tree lights are connected in series to a 127 V source. The string dissipates 63 W. What is the comparable resistance of light string.
Light from the sun is incident on the surface of a pond with a smooth surface. The light strikes the surface at the angle of 30 to the surface and is partially reflected. What is the angle of reflection for the reflected portion? What is an angle of ..
A microscope with an eyepiece lens of focal length 1.90 cm and an objective lens of focal length 1.15 cm is used to examine a section of the brain of a sacrificed rat. The distance between the lenses of the instrument is 24.0 cm and final image is vi..
How much work done against force of gravity
A 29.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 85.0 N and is directed at the angle of 30.0° above the horizontal. Find out the coefficient of kinetic friction.
What is the speed of the projectile
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