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A defibrillator is used during a heart attack to restore the heartto its normal beating pattern (see Section 19.5). A defibrillatorpasses 22 A of current through thetorso of a person in 1.7 ms.
a) How much charge moves during this time?b) How many electrons pass through the wires connected to thepatient?
q1. a flywheel having constant angular acceleration requires 4.60 to rotate through 170. its angular velocity at the
A rocket of mass kg is in flight. Its thrust is directed at an angle of 60 degrees above the horizontal and has a magnitude of. Find the magnitude and direction of the rockets acceleration.
The scale of a spring balance reading from 0 to 230 N has a length of 15.0cm. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.40 Hz. What is the mass of the fish ignoring the mass of the spring.
A vertical spring has one end attached to the ceiling and a 2.50-kg fish attached to the other one. How far down the fish will drop before starting to come back
A steam turbine is used to test a well insulated air compressor. The inlet temperature and pressure of the turbine are 5 MPa and 400 C. Calculate the steam mass flow rate through the turbine
A uniform chain with a mass of 1.38 kg per meter of length is coiled on a table. One end is pulled upward at a constant rate of 0.54 m/s. how much force must be applied to the end being raised
Calcualte the radiation dosage (in rads) for a 67-kg person that is exposed to 6.0 seconds to a 3.0 Ci source of beta radiation.
The solar energy coming to the earth by radiation is 1,340 W/m If the sun has a radius of 7.000*10^8m, what is the temperature of the sun
If you are driving 108 km/h alonga straight road and you look to the side for 1.0 s, how far do you travel during this in attentive period
A pendulum of length 2.0 m is held out to point A
Consider an object that is in an elliptical orbit with semimajor axis a = 3.1×106 m about a planet of mass M = 2.2×1023 kg. What is the speed of the object When it is closest to the planet at r = a/4
A gymnast with mass m1 = 47 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 118 kg and length L = 5 m. Each support is 1/3 of the way from each end. Initially the gymnast stands at the left end ..
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