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250 cm3 of hot tea at 89°C are poured into a very thin paper cup with 10 g of crushed ice at 0°C. Calculate the final temperature of the "ice tea". (Hint: think about two processes: melting the ice into liquid and, maybe, warming the liquid.)
tritium has a half-life of 12.33 years.a what fraction of the nuclei in a tritium sample will remain after 3.50 yr?b
A long, straight wire carrying a current of 4.32 A is placed along the axis of a cylinder of radius 48.7 cm and a length of 2.10 m. Determine the total magnetic flux through the curved surface of the cylinder.
A photographer uses his camera, whose lens has a 70mm focal length, to focus on an object 4.5m away. In which direction must the lens move to focus on this second object
Coherent light with wavelength 609nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3- {rm m} from the slits. The first-order bright fringe is a distance of 4.84 {rm mm} from the center of ..
the electron and proton of a hydrogen atom are separated on the average by a distance of approximately 5.3 x 10-11 m.
The catapult on an aircraft carrier can take an aircraft from 0 to 83.1 m/s in 14.5 seconds, at which time the aircraft launches. What is the acceleration of the aircraft when it launches
In a T1 PCM-TDM system, 24 signals all with the same bandwidth of 4 kHz are multiplexed after sampling at their Nyquist rate. If an 8-bit ADC is employed in this T-carrier system, find the speed of the digital multiplexed line.
A 1.15 K? resistor and a 505 mH inductor are connected in series to a 1250 Hz generator with an rms voltage of 14.2 V. What is the rms current in the circuit
In one day, a 85 kg mountain climber ascends from the 1440 m level on a vertical cliff to the top at 2360 m. The next day, she descends from the top to the base of the cliff, which is at an elevation of 1310 m.
You (height of your eyes above the water, 1.75 \rm m ) are standing 2.00 \rm m from the edge of a 2.50-\rm m-deep swimming pool. How far from the side of the pool is your cell phone
A boy throws a rock from the roof of his house at a velocity of 14.5 m/s and an angle of 41 degree. does the rock reach the river
A 6.4g lead bullet traveling at 460m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in te..
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