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In a container of negligible mass, 0.190 kg of ice at an initial temperature of -29.0C is mixed with a mass m of water that has an initial temperature of 80.0C. No heat is lost to the surroundings.
If the final temperature of the system is 29.0C, what is the mass m of the water that was initially at 80.0C?
A copper wire that is 1 m long has a radius of 0.6mm is stretched to a length of 3 m. what is the fractional change in resistance, change in R/R, as the wire is stretched?
Cations are removed from the exchange complex of a 1 kg oven-dry soil sample by ammonium (NH4+) substitution. What is the cation exchange capacity of the soil
With a wooden ruler you measure the length of a rectangular piece of sheet metal to be 16mm. What is the area of the rectangle
A 2.9cm --diameter parallel-plate capacitor has a 1.6mm spacing. The electric field strength inside the capacitor is 8.0×104 V/m. How much charge is on each plate
Standing waves on a string are generated by oscillations having amplitude 0.005 m, angular frequency 942 rad/s, and wave number 0.750p rad/m. What is the equation of the standing wave?
A 25-kg mass is supported by ropes as shown. Draw a free-body diagram of the "knot" where the ropes join. Use this to determine the tension in each of the ropes.
A 100-kg astronaut (mass includes space gear) on a space walk is 5.0 m from a 3000-kg space capsule and at the full length of her safety cord. Where do the astronaut and the capsule meet
An anchor, made of cast iron of bulk modulus 60.0 x 10^9 Pa and ofvolume 0.230 m^3, is lowered over the side of the ship to thebottom of the harbour where the pressure is greater than sea levelpressure by 1.75 x 10^6 Pa. Find the change in the volume..
When the coil carries a current of 4.0 A, a torque of magnitude 3.93 N-m acts on it. Determine the angle between the normal to the plane of the coil and the direction of the magnetic field.
Fill a glass with water. Look down through the water, and then through the glass to your hand on the outside. Can you see it? Tip the glass towards you and watch your hand disappear. Why? Do you know what physical phenomena this observation is rel..
The speedometer of a truck shows the linear velocity of the truck but actually measures the angular velocity of the wheels and converts that to the linear velocity. If the tires are changed out and larger diameter tires replace the stock tires, does ..
Based on your understanding of the material on Rome, in what ways do you see the concept of power or propaganda being displayed? Describe a particular artifact and the context with which it would have been viewed. What makes the artifact an image of ..
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