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A clever physics professor designs a cat-cannon and uses it to launch a 5 kilogram cat horizontally off the top of the sears tower (h=442 meter). Find with what initial velocity must the cat be launched so that it will land smack-dab in the middle of Lake Michigan, 80 kilometer to the east of the point of launch?
Find out the critical angle for the glass-synthetic interface (same as for the glass-diamond interface). Sketch a picture of the incoming ray as it interacts will all subsequent interfaces.
Two ice skaters, with masses of 30.0kg and 65.0kg , are at the center of a 60.0m -diameter circular rink. If the heavier skater reaches the edge in 40.0s , how long does the lighter skater take to reach the edge
A violin string vibrates at 294 Hz whenunfingered. At what frequency will it vibrate if it is fingeredone third of the way down from the end
A 529 kg automobile slides across an icy street at a speed of 66.0 km/h and collides with the parked car which has a mass of 856 kg. The two cars lock up and slide together. What is the velocity of the two cars just after they collide.
At the Equator near Earth's surface, the magnetic ?eld is approximately 64.5 µT northward and the electric ?eld is about 51 N/C downward in fair weather. Find the magnitude of the gravitational force on the electron
A circular coil 11 centimeter in diameter and containing nine loops lies flat on the ground. Calculate the torque on the coil
Using the idea of a dozen as an example again, if you have 2 dozen blocks and their total mass is 48 kg, What is the mass of a single molecule
Two capacitors are connected parallel to each other and connected to the battery with voltage 25V. By how much energy of the system decreases
A 116 gram cube of ice at 0°C is dropped into 1.0 kilogram of water that was originally at 82°C. Determine the final temperature of the water after the ice has melted
A lead block is suspended from the underside of a 0.2 kg block ofwood of density of 662 kg/m3. what is the mass of the lead block
Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. compute the distance in which the snowmobile coasts to a halt
Two indentical spaceships are travelling in the same direction. an observer on earth measure the first to have a speed of 0.80c, determine the speed of second spaceship
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