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Q. A 200gm block of metal is heated to 100 degrees Celcius in boiling water. This block is then placed in an aluminum calorimeter cup (mass - 30gm; c - .22 cal/g degrees C) containing 180 gm of water at 20 degrees C. If the final temperature of the mixture is 35.5 degrees C, find the specific heat of the metal.
A light plane is headed due south with a velocity of 157 km/h relative to still air. After 1.00 hour, the pilot notices that they have covered only 121 km and their direction is not south but southeast (45.0^circ).
What is the thinnest film of MgF2 n=1.39 on glass that produces a strong reflection for orange light with a wavelength of 600 nm.
What are the magnitudes of the (a) impulse and (b) average force on the passenger during the collision? If the passenger were to jump upward with a speed of 6.00 m/s relative to the cab floor just before the cab hits the bottom of the shaft, what ..
What friction torque is required to reduce its angular speed from 80.0 to 51 in 27.
What is the maximum speed with which a 1350kg car can round a turn of radius 71m on a flat road if coefficient of static friction between tires and road is 0.40.
A car starts from rest and travels for 10s with a uniform acceleration of +2.4 m/s2. The driver then applies the brakes, causing a uniform negative acceleration of -2.0 m/s2.
A 1245-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1955-N crate hangs from the far end of the beam.
An airplane is flying with a velocity of 81.0 m/s at an angle of 24.0^circ above the horizontal. When the plane is a distance 108m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
A 378 N, uniform, 1.56 m bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 502.0 N without breaking, and cable B can support up to 397.0N. You want to place a small weight on this bar. What is ..
The length of the mercury column is 4.0cm in pure melting ice and 28.0 cm in the steam. Compute the temperature for a length of 22.0.
Compute gauge pressure of the flowing water
A miniblack hole formed as a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (Assume that your mass is 50).
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