What is the specific heat of this metal object
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A resister is connected to a 4.50 volt battery and the Current flow is 83 mA. (a.) What is the resistance of the resister? (b.) In what direction does the current flow through the resister?
A cylindrical cable with 2.49 x 10-8 m resistivity carries a current of 1500 A. There is a potential difference of 1.8 x 10-3 V between two points on the cable that are 0.33 m apart. What is the radius of the cable?
The edge length of the unit cell of potassium metal, K, is 533 pm; the unit cell is body-centered cubic (one atom at each lattice point). Potassium has a density of 0.856 g/cm3. What is the mass of a potassium atom?
Two small nonconducting spheres have a total charge of 94.8 uC. When placed 1.10 m apart, the force each exerts on the other is 12.2 N and is repulsive. What is the charge on each?
A metal object with a mass of 32 g is heated to 99°C, and then transferred to a calorimeter containing 75 g of water at 18°C. The water and metal object reach a final temperature of 24°C. What is the specific heat of this metal object?
When the ball lands, it is at the same level as the tee. (a) On the distant planet, what is the maximum height of the ball? (b) On the distant planet, what is the range of the ball?
The distribution ages for students at the state college is positively skewed with a mean of 21.5 and a standard deviation of 3.
Assuming that the mechanism has only one step, and that the products are 47 kJ lower in energy than the reactants, sketch approximate energy-level diagrams for the catalyzed and uncatalyzed reactions.
A mixture of CH4 (methane) and C2H6 (ethane) weighs 68.00 grams and it is burned in with oxygen fuel. The products formed in this reaction are H2O and CO2 and these products weigh 13.00 grams. Find the fraction of methane in the original mixture.
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