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At a distance of 4,000 ft from the launch site, a spectator is observing a rocket being launched. If the rocket lifts off vertically and is rising at a speed of 600 ft/sec when it is at an altitude of 3,000 ft, how fast is the distance between the rocket and the spectator changing at that instant?Solution) Distance=s=√(40002+h2), rate of change of distance=ds/dt=(ds/dh)(dh/dt)=(d(√(40002+h2)/dh)(dh/dt),dh/dt=600 ft/sec
For each element the number of neutrons in the nucleus can vary. Isotopes :Nuclei of given element with different numbers of neutrons.If they are not radioactive they called
A microphone is attached to a spring that is suspended from the ceiling. Directly below on the floor is a stationary 440 Hzsource of sound. The microphone vibrates up and down in s
Can you explain Doppler effect? Find a mathematical expression for the apparent frequency heard when the source is in motion and the listener is at rest and also give limitation of
With a neat and clean diagram illustrate in brief the TIR. Describe critical angle and mention the two conditions for TIR.
The wheatstone bridge: You have already solved resistor networks using Ohm's law and Kirchoff's laws. In this unit we are going to look at a special arrangement of series and
what is the histroy of the periodic table
Defective eyesight due to focusing(refractive)problems- ametropia: It is often possible to correct ametropia completely with glasses There are four general types of ametrop
The heating elements of electric irons are made of (A) Copper. (B) Nichrome. (C) Constantan. (D) Aluminium. Ans: The heating components of electric irons ar
Is there any physics expert willing to write me a 6 pages paper about Bassel equation (the physics of it) illustrating that with filter examples. I need ppt slides as well to help
Using a bicycle Turn a bicycle upside down so that it rests on the seat and handlebars. Turn the pedal wheel precisely one turn and note the number of turns made by the rear wh
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