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A prehistoic bug (m=0.02kg) has escaped into the moder world. It ignorantly hovers (at rest)in the middle of a road. Moments later is has a head-on collision with a VW jetta (m=1465kg) driving at 97 m/s south on the same road. How due to the bug's superior prehistoric exoskeleton, the collision is 99.99999% elastic.
a) how fast (and in what direction) is the ubg traveling after the collision?
b) Where does the other 0.0001% of the kinetic energy go?
A pilot claims to have seen a UFO moving initially at a speed of about 373 m/s in an easterly direction and then, Compute the UFO's average acceleration during the turn
What is the charge q. suppose the speed of sound in air to be 343 m/s.
To save on heating costs, the owner of a green house keeps 680 kg of water around in barrels. What is the minimum ampere rating of an electric heating system (240 V) that would provide the same heating effect as the water does
Obtain a relation between the equilibrium lattice distance
The centripetal and tangential accelerations are equal
You are listening a soft music with a sound level of 50 dB. A subway train passes by whose sound level is 90 dB. What is total intensity level of the combined sound in dB.
The far point of a nearsighted person is 8.5 m from her eyes, and she wears contacts that enable her to see distant objects clearly. How high is the image formed by the contacts
A roller coaster is towed up an incline at a steady speed of 0.51m/s by a chain parallel to the surface of the incline. The slope is 2.85 % that means that the elevation increases by 2.85 m for every 100m of horizontal distance.
A steel wire of length 1.97m with circular cross section must stretch no more than 0.270cm, What minimum diameter dmin is required for the wire
The highest-energy cosmic ray ever detected had an energy of about 3.0x10^20 eV. Assume that this cosmic ray was a proton. What was the proton's speed as a fraction of c
A proton, an electron, and an alpha particle (of charge +2e) form an equilateral triangle of side length 2.19×10-10 m. What is the electric potential energy of the three-particle system
In an adiabatic centrifugal compressor atmospheric air at 15 degree Celsius is compared to 600kPa pressure. Find the specific compression work and the efficiency of the compressor
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