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What is the minimum area (in square meters) of the top surface an ice slab 0.251 m thick floating on fresh water that will hold up a 1060 kg automobile? Take the densities of ice and fresh water to be 917 kg/m3 and 998 kg/m3, respectively.
A converging lens with a focal length of 6.20cmforms an image of a 3.00mm -tall real object that is to the left of the lens. Where are the object and image located
A 0.5 kg lump of clay is moving at 2 m/s in the +x direction of some arbitrarily chosen coordinate system. What is the velocity of the pair after the collision
Current passes through a solution of sodium chloride. In 1.00 s, 2.68×1016 Na+ ions arrive at the negative electrode and 3.92×1016 Cl? ions arrive at the positive electrode. What is the current passing between the electrodes
A 68 kg person sits on a 4.0 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.2 cm in diameter . Find the pressure exerted on the floor by each leg of the chair, assume the weight is evenly distributed.
An aluminum rod is clamped one quarter of the way along its length and set into longitudinal vibration by a variable-frequency driving source. obtain the length of the rod
A battery delivers 2.54A to a resistor rated at 4.60? . When it is connected to a 2.15? resistor, it delivers 4.98A. Determine the battery's terminal voltage
A solid cylinder with a radius of 4.0 {rm cm} has the same mass as a solid sphere of radius R. If the cylinder and sphere have the same moment of inertia about their centers, illustrate what is the sphere's radius?
A current I = 13.0 A flows through a strip of metal of width 4.0 cm, What is the drift velocity of the carriers in the strip
q1. the rate of energy use in a typical house is about 2 kw. if the kinetic energy of a car mass 1456 kg is equal to
The capacitor in an LC circuit has a maximum charge at t= 1 ms. What is the circuit's period of oscillation
Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. how much work does the tension force do on Magnus
You observe that a falling stone takes 0.21 seconds to pass a window that is 1.6 meters tall. What is the speed of the stone as it reaches the bottom of the window
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