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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
The residual enthalpy of saturated CO2, as calculated from the SRK equation of sate, is given below The ideal gas heat capacity of carbon dioxide is = 33 J/mol/K and ca
to derive expreation for magnitude & direction for the resultant which two are acting at a point
Ca has atomic no. 20 and atomic weight 40. Which of the following statements is not correct about Ca atom: (1)The number of electrons is same as the number of neutrons (2)
When you are talking about relative velocity of A with respect B then it''s like you are observing the motion of A while standing on B. That is, with respect to you, B is at rest.
Illustrates term refractive index in optical fibres? Refractive Index: Optical fibres consist of two layers which are core and cladding with various refractive indices. T
What are the demerits of the typical ultrasonic flaw detector? Demerits of a typical ultrasonic flaw detector: a. Both the sides of the specimen are needed for the study.
A man pushes a couch a distance of 0.75 m. If 113 J of work is done. what is the magnitude of the horizontal force applied?
Metallurgical Industry:- Variable speed DC drives are being use usually now variable frequency AC drives using squirrel cage motors
what condition is necessary for heat transfer occur
How to find the acceleration of a body in a non inertial frame on the action of friction? Solution) Use the concept of pseudo force. Multiply the mass of the body of which you
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