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Tsunamis are fast-moving waves often generated by underwater earthquakes. In the deep ocean their amplitude is barely noticeable, but upon reaching shore, they can rise up to the astonishing height of a six-story building. One tsunami, generated off the Aleutian islands in Alaska, had a wavelength of 723 km and traveled a distance of 3930 km in 5.44 hr. What was the speed (in m/s) of the wave? For reference, the speed of a 747 jetliner is about 250 m/s. Do not enter unit.
A concave makeup mirror is designed so the virtual image it produces is three times the size of the object, What is the radius of curvature of the mirror
Two coplanar and concentric circular loops of wire carry currents of I1 = 6.20 A and I2 = 2.50 A in opposite directions as in the figure below. (a) If r1 = 12.0 cm and r2 = 8.60 cm, what is the magnitude of the net magnetic field at the center of ..
If the frequency that is supplied is set at the circuit's resonance frequency, what is the rms voltage across each of the circuit elements
An unstrained horizontal spring has a length of 0.25 m and a spring constant of 180 N/m. Two small charged objects are attached to this spring, one at each end.
One-eighth of a sample of Th remains undercayed after 54 days. What is the half-life of this thorium isotope
A proton has an initial speed of 3.5×10^5 m/s. What potential difference is required to bring the proton to rest
A car moves along the x-axis in the positive direction. Find the sign (+,-) of the velocity and acceleration of the car for each situation: 1. The car moves AWAY from the origin and gets FASTER 2.
A 1000-kilogram race car is traveling at 60 m/s around a curved section of track that has a radius of 300 m. What is the car's centripetal acceleration? What is the centripetal force that acts on the car?
A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. What is the average net force (magnitude and direction) exerted on the ball by the cushion
Two blocks, one of 50 g and the other of 46 g, are connected by a string and hung over a frictionless pulley which has a radius of 5 cm. What is the moment of inertia of the pulley
you look over at a really expensive diamond fish bowl. the fish in the bowl is at an angle of 75 to the normal. what angle does light exit the fish bowl
A series RCL is at resonance and contains a variable resistor that is set to 175 ohms. how much power is delivered when the variable resistor is set to 562 ohms
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