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1) A 565g cube of iron is cooled form the temperature of boiling water to room temperature (20C).
a. How much heat must be absorbed by the cube?
b. If the iron is cooled by dunking it into water at 0C, how much water is needed?
2) A .50kg sample of water is at 15.0C in a calorimeter. A 0.040 block of zinc at 115C is placed in the water. Find the final temperature of the system.
A tank contains 11.9 g of chlorine gas (Cl2) at a temperature of 81 °C and an absolute pressure of 5.50 105 Pa. The mass per mole of Cl2 is 70.9 g/mol. Determine the volume of the tank
A ball of radius 37 cm is rolling down an inclined plane with no slipping. What is the balls angular acceleration at the bottom of the inclined plane
A line of positive charge is formed into a semicircle of radiusR. The charge per unit length along the semicircle isdescribed by the expressionλ=λ0/θcosθ. Calculate theelectric field at the center of the curvature.
A fast pitch softball player does a "windmill" pitch, moving her hand through a vertical circular arc to pitch a ball at 72 mph. What is the magnitude of the force her hand exerts
A light plane is heading due south with a speed reflective to still air of 185 km/h. What is the wind velocity
A hoop and a disk, both of 0.76- m radius and 3.0- kg mass, are released from the top of an inclined plane 3.0 m high and 7.0 m long. determine the speet of the hoop and disk
If 100 Joules is transferred to the Sample A, its temperature goes up by 10 degrees Celcius. How many calories does each gram of Sample A receive? What is the specific heat of the material? If 100 Joules were transferred to Sample B what is the chang..
A plastic bag is filled with nitrogen at atmospheric pressure and 27.0 oC. If hot air is used instead of nitrogen, what is the required volume of the balloon if the air inside can be maintained at 39.0 oC
spring system is allowed to come to a static equilibrium. How much does spring stretch.
A 65-g ice cube at 0°C is placed in 874 g of water at 23°C. What is the final temperature of the mixture
What exactly is the work function of a metal? Is it the jolt of energy required to obtain any electron out? The maximum jolt of energy needed to obtain an electron out? The minimum jolt ? Something else?
A 17 kg body is moving through space in the positive direction of an x axis with a speed of 310 m/s when, due to an internalexplosion, it breaks into three parts. One part, with a mass of 6.1kg, moves away from the point of explosion with a speed ..
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