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When lead is melted at atmospheric pressure, the melting point is 600 K, the density decreases from 11.01 to 10.65 g/cm3, and the latent heat of fusion ?H is 24.5 Jig.
What is the melting point at the pressure of 1.01 x 107Pa?
The rear axle of a truck is 2.5 m long. If the truck is moving at 28 m/s, what emf is induced between the ends of the axle
You are pulling a suitcase through the airport at a constant speed. the handle of the suitcase makes an angle of 53 degrees with respect to the horizontal direction. what is the force of friction acting on the suitcase
A beam of 16MeV deuterons (m=2mp) from a cyclotron falls on a copper block. The beam is equivalent to a current of 15 microA. At what rate is thermal energy produced in the block
A cylinder 5 m high with a 2m diameter is filled with water at 20 degrees C at 101 kPa is placed on the ground (circle side down). It is then drained form the bottom. What is the entropy generation in this process? Note: this is a transient process, ..
A pendulum of length 130 cm swings with an amplitude of 1.6 cm. Its mechanical energy is 5.0 mJ. What is the mechanical energy of the same pendulum
A copper wire has a resistance of 0.575 ohm at 20.0°C, and an iron wire has a resistance of 0.595 ohm at the same temperature. At what temperature are their resistances equal
A 90.0kN spaceship comes in for a vertical landing. From an initial speed of 1.00 km/s, it comes to rest in 1.50min with uniform acceleration. What braking force must its rockets provide
What is the tangential speed of the 69 kg skier feeling a centripetal force of 226 N
a proton is released from rest in a uniform electric field of magnitude 412 nc. a find the electric force on the
A uniform disk of radius 0.463 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
Standing waves on a 1.0m long string that is fixed at both ends are seen at successive frequencies of 24 Hz and 63 Hz. What are the wave speed and fundamental frequency?
A dynamite blast at a quarry launches a rock straight upward, and 2.3 s later it is rising at a rate of 18 m/s, calculate blast speed at launch
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