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A layer of air has a temperature T0 of 30 Celsius at ground level and a lapse rate ? of 20 Celsius/km. A parcel originatiing at the surface is displaced upward with velocity v0 of 1 m/sec.
a) Ignoring friction and assuming dry adiabatic ascent, find expressions for the altitude z(t) and velocity v(t).
b) Find the time that it takes for the parcel to reach an altitude zf of 500m and determine its upward velocity at that point.
A pair of hedge trimmers are 45 cm long from the pivot to the end of the handles. how much force is applied to the branch
Two coils are at fixed locations. When the current in coil 2 increases at a rate of 15 A/s, the emf in coil 1 is 25 mV. Find their mutual inductance
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A 500 kg vehicle is cruising down the highway at 30 m/s when the driver creates an average force of 700 N by stepping on the gas. How much work was done by the vehicle during the .50km of acceleration
A certain superconducting magnet in the form of a solenoid of length 1.10 m can generate a magnetic field of 11.0 T in its core when its coils carry a current of 85 A. Find the number of turns in the solenoid
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A force of 13.3 N pulls horizontally on a 0.9 kg block that slides on a rough, horizontal surface, What is the acceleration of the blocks and What is the tension in the string
find the time rocket reaches the peak height of trajectory.
A 1.90-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.20sin(2?t), Find the resonance angular frequency of the system
Determine the magnitude of the force between two point charges, Q1 = -2e located at (-3.60 cm, +4.10 cm) and Q2 = -8e located at (-0.60 cm, -8.60 cm).
A 25 gram ball is fired with an initial speed v1 toward a 125 gram ball that is hanging motionless from a 1.25 meter string. The balls have a perfectly elastic collision. As a result, the 125 gram ball swings out until the string makes an angle of..
A long transmission wire carries an AC current given by I=400 sin(120pi*t). The transmission wire is parallel to the x-axis and located at y=0, z=20. What will be the induced voltage in the loop
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