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An unknown material has a normal melting/freezing point of -26.3° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C°). One-tenth of a kilogram of the solid at -26.3° C is put into a 0.143-kg aluminum calorimeter cup that contains 0.095 kg of glycerin. The temperature of the cup and the glycerin is initially 28.3° C.
All the unknown material melts, and the final temperature at equilibrium is 19.6° C. The calorimeter neither loses energy to nor gains energy from the external environment. What is the latent heat of fusion of the unknown material?
A grocery cart with mass of 12kg is being pusch at constant speed up a flt 15 degree ramp by force which act at an angle 17 degree below the horizontal line.
A large water tank has an inlet pipe and an outlet pipe. The inlet pipe has a diameter of 2.05 cm and is 2.15 m above the bottom of the tank. What is the gauge pressure in the outlet pipe
An ideal gas expands at a constant total pressure of 2.5 atm from 3.45 L to 6.70 L. calculate the total heat flow into the gas
A certain corner of a room is selected as the origin of a rectangular coordinate system. what is the location of the fly in polar coordinates
what must be done to increase the velocity of a rocket. Calculate the horizontal force that must be applied to produce an acceleration.
A horizontal desk surface measures 2.52 m x 2.05 m. If Earth's magnetic field has magnitude 0.463 mT, what is the magnetic flux through the desk surface
An electron starts from rest 43.1cm from a fixed point charge with -0.150nC. How fast will the electron be moving when it is very far away
Two particles of masses m and 3m are moving toward each other along the x-axis with the same speed v. Determine the final speed of the heavier object
Find the coefficient of friction between crate and floor
A 1590 kg car has just passed a diner. The closest the car came to the diner was R = 12.5 m, find the current magnitude of the angular momentum of the car about ther dinner
One end of a nylon rope is tied to a stationary support at the top of a vertical mine shaft of depth 83.0 m. What is the wave speed at the top of the rope
Write the input- output relationship for an ideal integrator. Determine the zero- input and zero-state components of the response
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