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A car traveling at 23.2 m/s crashes into a brick wall. The front 0.92 meter of the car crumples, and the driver comes to rest. Find the acceleration of the driver, assuming he is held in his seat by a seat belt and assuming that the acceleration is constant.
Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. What is the minimum uncertainty in the duck's speed
The rms speed of a sample of gas is increased by 3 percent. What is the percent change in the pressure of the gas
A series RCL circuit has a resonant frequency of 2200 Hz. When operating at a frequency other than 2200 Hz, the circuit has acapacitive reactance of 5.50 ohms and an inductive reactanceof 35.0 ohms.
A cylindrical storage tank has a radius of 1.22m. When filled to a height of 3.71m, it holds 14 300 kg of a liquid industrial solvent. What is the density of the solvent?
The electrons in the beam of a television tube have a kineticenergy of 2.04 x 10-15 J. Initially, the electrons movehorizontally from west to east. The vertical component of theearth's magnetic field points down, toward the surface of theearth, an..
Jill jumps off the diving board with a velocity of 1.7 m/s at 38 degrees above horizontal. if the water surface is 2 meters below the board: A. how long will it take for her to hit the water? B. where will she hit the water? C. with what velocity ..
A conductor is found to be transparent to ultraviolet light with wavelengths shorter than 200 nm. Assuming a permittivity equal to that of vacuum, and assuming that the effective mass equals the free-electron mass, calculate the Hall coefficient.
There's an office door, 0.86m wide, 2.0m high and 4.0cm thick. It pivots on frictionless hinges. What is the least force that you need
A sports car moving at a constant velocity travels 120 m in 5.0 seconds. If the it then brakes and comes to a stop in 4.0 seconds; what is the magnitude of its acceleration in m/s2 and in g's (1 g = 9.80 m/s2)?
A car of mass m = 1365 kg is pushed off a cliff of height h = 29 m. what was the kinetic energy of the car the instant after it left the cliff
A Kangaroo is moving with a velocity of 5.0m/s at an angel of 30 degrees North of East. What is the kangaroo's average acceleration
a mass m1 4.3 kg rests on a frictionless table and connected by a massless string to another mass m2 4.7 kg. a force
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