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Air is confined at atmospheric pressure (101.3 kPa) in a cylinder whose volume is 0.22 m3. When 8.0 kcal of heat is added, the volume increases at constant pressure to 0.35 m3. Calculate the increase in internal energy of the air.
The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.800, and the log has an acceleration of 0.800 m/s2. Find out the tension in the rope.
A laser with a power output of 2.10 mW at a wavelength of 425 nm is projected onto calcium metal. Given the binding energy is 2.28 eV, how many electrons per second are ejected
at what rate is the passenger train approaching the freight train.
Upon being struck by 240 nm photons, a material ejects electrons with a maximum kinetic energy of 2.58 eV
According to the universal law of gravitation the gravitational force on a small mass at the surface of the Earth is proportional to the product of the mass and the mass of the Earth and inversely proportional to the square of the distance between..
A 4-g bullet is fired into a 1.4-kg block that is resting on a table. After impact, What was the initial speed of the bullet?
Suppose a tank contains 770 m3 of neon (Ne) at an absolute pressure of 1.01×105 Pa. The temperature is changed from 293.2 to 295.6 K. What is the increase in the internal energy of the neon?
In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, What are the magnitudes of the average force acting on the victim from the floor during the collision
The strength of the magnetic field within a solenoid is B = 3.4 × 10-2 T, single loop is placed in the solenoid parallel to the plane of each loop in the solenoid, What is the total number of turns of the solenoid
A 50 foot garden hose isfilled with sea water. What is the resistance from one end to the other, what is the current density in the hose
A coach tells his little league players that hitting a .275 batting average, within 7% percentage error, means that they had a really great season. 7-year-old Tommy ended the season hitting a .258 batting average. According to his coach, did he ha..
An 82 kg man drops from rest on the diving board 3 m above the surface of the water and comes to rest 0.55 s after reaching the water. What force does the water exert on him.
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