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Physics, 21.06.2019 14:40
An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 v for 0.65 ms. the resistance of the heart muscle between the pacemaker’s electrodes is 550 ω. find (a) the current that flows during a pulse, (b) the energy delivered in one pulse, and (c) the average power supplied by the pacemaker.
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Describe the path of a ray that approaches a mirror parallel to the principal axis.
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Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system
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Simple machines can a. increase force only b. decrease force only c. increase or decrease force
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Aproton has nearly two-thousand times the mass of a( a. electron b. photon c. neutron d. hydrogen at...
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