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Question: One day when you come into physics lab you find several plastic hemispheres floating like boats in a tank of fresh water. Each lab group is challenged to determine the heaviest rock that can be placed in the bottom of a plastic boat without sinking it. You get one try. Sinking the boat gets you no points, and the maximum number of points goes to the group that can place the heaviest rock without sinking. You begin by measuring one of the hemispheres, finding that it has a mass of19gand a diameter of8.2 cm. What is the mass of the heaviest rock that, in perfectly still water, won't sink the plastic boat?
n a circuit, a current of 4A is drawn from a battery. The current then divides, What is the value of the other resistor
A small statue is recovered in an archaeological dig. Its weight is measured to be 8.4 lb and its volume 0.04 ft3. Find what is the statue weight density
What mathematical operation does the circuit perform?- Reverse the location of the resistor and the inductor. What mathematical operation does the circuit perform now?
Two loudspeakers are placed at either end of a gymnasium, both pointing towards each other. The sound emitted by the speakers is in phase and are of frequency of 256 Hz.
Two large closely spaced parallel metal plates are uniformly and oppositely charged and the electric field between them is 7.6 x 106 N/C. Determine the charge per unit area on each plate
The power dissipated in a series RCL circuit is 66.2 W, and the current is 0.547 A. The circuit is at resonance. Determine the voltage of the generator
Three point charges are arranged in a horizontal line as shown below. Find the electric force on Q1 given the following: Q1 = -4 mC, Q2 = -5 mC, Q3 = 3 mC, r1 = 80 m, and r2 = 160 m. What is the sum of the forces on all three charges
A rectangular aluminum plate has an area of 0.34 m2 at 19°C. If it is heated until its area has increased by 4.1 10-6 m2, what is the final temperature of the plate
Explain why the apartment's temperature in this problem is a public good, and find the efficient temperature.
Oppositely charged parallel plates are separated by 3.77 millimeter. A potential difference of 600 Volt exists between the plates. Find the magnitude of electric field between the plates
Two carts with masses m1 = 3.5 kilogram and m2 = 0.9 kilogram are moving toward each other with speeds v1 = 1.5 m/s and v2 = 1.8 m/s. Evaluate what is the final speed of the two masses
Air in a closed piston-cylinder device arranged to maintain a pressure of 400 kPa is heated from 27 ° C to 227 ° C. What is the final air volume
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