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During a research experiment on the conduction of current in the human body, a medical technician attaches one electrode to the wrist and a second to the shoulder of the patient. If 100mV is applied across the two electrodes and the resulting current is 12.5mA, what is the overall resistance of the patient's arm?
A student throws a water balloon vertically down from the top of a building. The balloon leaves the thrower's hand with the speed of 16 m/s. How fast is it traveling after 2.6 seconds.
An unknown tuning fork produces a beat frequency of 3Hz when played with a 440Hz fork, What is the frequency of the unknown fork
The distance between 2 slits (d=0.155 mm) and a screen is 1.54 m. If the spacing between the 2nd order bright fringe and the 3rd order dark fringe is 3.50 mm obtain the wavelength of the light
A large parallel plate capacitor has plate separation of 0.85 cm and plate area of 391 cm2. How much work is done on the capacitor as the plate separation is increased to 1.70 cm
A 45 kg girl is standing on a 130 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.33 m/s relative to the plank.
imagine a hole is drilled down to the center of the earth. a small mass m is dropped into the hole. find the speed of the mass just as it reaches the earth's center
Two carts with masses of 4.5 kg and 3.9 kg move toward each other on a frictionless track with speeds of 5.6 m/s and 4.3 m/s, respectively. The carts stick together after colliding head-on.
Heat flows into an ideal gas at a constant volume. The pressure increases from 1.5 atm to 5.5 atm. What is the total heat flow of the process
A dynamite blast at a quarry launches a rock straight upward, and later it is rising at a rate of 15m/s. Assuming air resistance has no effect on the rock, calculate the total time the rock is in the air.
Your cup of coffee is too hot to drink when served at 95.What is mass of an ice cube, taken from a -19.0 freezer, that will cool your coffee to a pleasant 62.
A hospital nurse walks 25 m to a patient's room at the end of the hall in 0.50 min. She talks with the patient for 4.0 min, What was the nurse's average speed
A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, plates are disconnected from the battery. define the behavior of the ball.
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