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A current of 0.300 A through your chest can send your heart intofibrillation, ruining the normal rhythm of heart beat anddisrupting the flow of blood (and thus oxygen) to your brain. Ifthat current persists for 1.94 min, how many conduction electrons pass through your heart?
A 5.0-kg crate is being pulled along a horizontal, smooth surface. What is the acceleration of the crate in m/s2
a pair of parallel plates produces a uniform electric field of 900vm. if an electron is released at rest from the
An air parcel occupied by an ideal gas (T1 = 255 K, V1 = 1500 m3, m1 = 1680 kg) collides and mixes with a second air parcel occupied by a second ideal gas (T2 = 280 K, V2 = 1200m3, m2 = 1392 kg). Assuming the specific heat capacities of the gases in ..
What is the wavelength of an 102.1 FM radio station and What is the wavelength of an 1310 AM radio station
During heavy rain, a section of a mountainside measuring 5.1 km horizontally, 0.78 km up along the slope, and 0.95 m deep slips into a valley in a mud slide. What is the mass of the mud sitting above a 3.6 m2 area of the valley floor
How fast is the top of the tree moving (in m/s) just before it hits the ground? Model the tree as straight, rigid rod, and ignore friction and air resistance.
A sledge loaded with bricks has a total mass of 17.1 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. What is the mechanical energy lost due to friction
An orbiting satellite stays over a certain spot on the equator of (rotating) Earth. What is the altitude (in km) of the orbit (called a geosynchronous orbit)?
a man strikes one end of a thin rod with a hammer. the speed of sound in the rod is 16 times the speed of sound in air.
At t = 0 a grinding wheel has an angular velocity of 27.0 rad/s. It has a constant angular acceleration of 32.0 rad/s2 until a circuit breaker trips at t = 2s. From then on, it turns by 432 rad as it coasts to a stop at constant angular accelerati..
A spherical source radiates sound uniformly in all directions. At a distance of 13 m, the sound intensity level is 80 dB. What power is radiated by this source
A 95.0-kg climber is scaling the vertical wall of a mountain. His safety rope is made of a material that, How much is the rope stretched when it breaks his fall and momentarily brings him to rest
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