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Problem: A 5.0 g ice cube at -20 degrees C is in a rigid, sealed container from which all the air has been evacuated. How much heat is required to change this ice cube into steam at 200degrees C?
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A 5570kg open train car is rolling on frictionless rails at 23.6m/s when it starts pouring rain. What mass of water has collected in the car
A spring with 49 N/m hangs vertically next to a ruler. The end of the spring is next to the 17-{rm cm} mark on the ruler. If a 2.0-{rm kg} mass is now attached to the end of spring, where will the end of the spring line up with the ruler marks.
an airtight box has a removable lid of area 1.34e-2 m2 and negligible weight. the box is taken up a mountain where the
Two polarizers are oriented at 30o to each other and apolarized light is incident on them. If only 14 percent of thelight gets through both of them, what is the angle between the initial polarization direction of the incident light and the firstpo..
In the Challenger Deep of the Marianas Trench, the depth of seawater is 10.9 km and the pressure is 1.16 x 10^8 Pa. What is the density of seawater at this depth
Two small non conducting spheres have a total positive charge of 108.4 μC. Obtain what is the charge on the spheres
assume that you are swimming in a river while a friend watches from the shore. In calm water, you swim at a speed of 1.25 rm m/s . The river has a current that runs at a speed of 1.00 rm m/s.
Find the flux of Earth's magnetic field of magnitude 5.00 x 10-5 T through a square loop of area 10.0 cm2 when the field is perpendicular to the plane of the loop
A charge of -0.50 µC is situated in an electric field of magnitude 9.0 × 104 N/C, directed horizontally to the right. Find the magnitude and direction of the force on it
The drawing shows two long, straight wires that are suspended from a ceiling. The mass per unit length of each wire is 0.047 kg/m. What is the current in each wire
A 1130kg car and 4020kg truck undergo a perfectly inelastic collision. Find the velocity of the wreckage immediately after the collision
Three springs each hang from a ceiling with a stationary block attached to the lower end. The blocks (with m1> m2 > m3) stretch the springs by equal distances. Each block-spring system is then set into vertical SHM. Rank the masses according to the p..
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