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a heart defibrillator is charged to 350V. It is connected to a patient's chest and allowed to discharge through the heart. After 2secs, how much charge resides on the capacitor?
the near point of a person's eye is 52.8 cm. To see objects clearly at a distance of 24.0 cm, what should be the focal length and power of the appropriate corrective lens
A 10 kg hammer strikes a nail at a velocity of 8.3 m/s and comes to rest in a time interval of 8.0 ms. What is the impulse given to the nail
Draw a picture of a polarized and unpolarized E-field (go ahead and just do it at one point in space using an arrow(s)). Polarized means that the E-field oscillates perpendicularly at a fixed orientation relative to the direction of propagation.
There is a specific case where for a single converging lens the object distance equals the image distance. Find the relation between the focal length and the object distance in this case
A man whose mass is 80kg on the earth's surface is in a spacecraft at a height of 2 Earth radii above the earth's surface. At that height what is the acceleration due to gravity
An ideal air-filled parallel-plate capacitor has round plates and carries a fixed amount of equal but opposite charge on its plates. how much energy does it now store
A 54kg sprinter, starting from rest, runs 60m in 7.0s at constant acceleration. What is the magnitude of the horizontal force acting on the sprinter? What is the sprinter's average power output during the final 2.5s
Starting from rest, a 5.4-kg block slides 2.10 m down a rough 30.0° incline. Determine the work done by the force of gravity
Mr. Gewanter, who's mass is 60.0 kg, is doing physics demonstration in the front of the classroom. a) How much gravitational force does he exert on 55-kg Martha in the front row, 1.50m away? b) How does this compare to what he exerts on 65-kg Lest..
if 5 capacitors each of 5 micro F are connected in series with 4 capacitors each of 4 uF capacitances in parallel. what is the the net capacitance
A 0.05 kg bullet traveling at 600 m/s hits a 7.4 kg block of wood and stays in the wood. What is the velocity (speed)of the wood block
A horizontal beam of electrons initially moving at 4.0x10^7 m/s is deflected vertically by the vertical electric feild between oppositely charged parallel plates. the magnitude of the field is 2x10^4N/C. What is the verticle deflection d of the el..
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