In Part A, 90 g of water at 20°C is mixed with 100 g of aluminum at 100°C, reaching an equilibrium temperature of 30°C. What is the heat gained, in cal, by the water? (Specific heat of water: 1 cal/g·°C)

If the mass of water is increased to 180 g (initially at 20°C) while keeping the aluminum setup the same, what would happen to the equilibrium temperature?

At constant volume, the pressure of oxygen at 150 K is measured as 50 atm. What is the pressure, in atm, when the temperature increases to 450 K?

If you place a positive charge in the center of the grid and move the potential tool 1.0 meter away, how does the electric potential change as you move farther from the charge?

When the area of the capacitor plates is increased while keeping the plate separation constant, what happens to the capacitance?

What is the direction of the electric field at a point near a positive charge?

f the coil area is increased while keeping the magnet strength and RPM constant, what happens to the induced voltage amplitude ()?

Which of the following best describes the relationship between electric field lines and equipotential surfaces?

What is the slope of the best fit line for the data in Table 1?

What is the ratio of for an incident angle of 40 degrees?