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A mass of steam is added to 780 grams of ice -11 degrees Celsius to yield water at 20 degrees Celsius.
a) draw the phase change diagram for this
b) Compute the mass of steam required to achieve this final temperature
c) Compute the change in the steams internal energy
d) Compute the change in entropy as the ice MELTS (only for melting
What is the location of an object for which the magnitude of the image distance is one-fourth the magnitude of the object distance
What is the de Broglie wavelength (in angstrom) of an electron at 100 eV? What is the wavelength for electrons at 12 keV, which is typical of electron microscopes? Comparing this to visible light comment on the advantages of electron microscopes.
A cylindrical copper cable carries a current of 1100 A. There is a potential difference of 1.6 multiplied by 10-2 V between two points, What is the radius of the cable
A 5-kg projectile is fired over level ground with a velocity of 200m/s at an angle of 25? above the horizontal. Just before it hits the ground its speed is 150m/s.Over the entire trip the change in the internal energy of the projectile and air is:
a football is kicked at ground level with a speed of 18.0 m/s at an angle of 35.0 degrees to the horizontal. how much later does it hit the ground
question a person swings a 0.521-kg tether ball tied to a 4.60-m rope in an approximately horizontal circle. if the
A solid bowling ball with a radius of 10.9 cm and a mass of 7.3 kg rolls along a bowling alley at a linear speed of 2.4 m/s
Two power lines, each 260 meter in length, run parallel to each other with a separation of 35 centimeter. find the magnitude and direction of the magnetic force each exerts on the other
At a point where an irrigation canal having a rectangular cross section is 18.9 m wide and 3.65 m deep, the water flows at 2.55 cm/s. How deep is the canal at this point
The cars stick together and move as a unit after the collision, at an angle of 47.0° north of east and at a speed of 6.36 m/s. Find out the speed of the 3000 kg car before the collision.
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.979 rad/s. You, with a mass of 70.3 kg, walk clockwise around the platform along its edge at the speed of 1.11 m/s with respect to the platform. Calculate the ..
q1. a 9.05 kg projectile is fired vertically upward. air drag decreases the mechanical energy of the projectile-earth
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