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Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn plant has a resistance of 1.8MOhms measured between two electrodes placed 20 cm apart along the leaf. The leaf has a width of 2.4cm and is 0.20cm thick.
1. What is the resistivity of the leaf tissue? Express your answer to two significant figures and include the appropriate units.
A glass bead (diamter of about 2 mm) has a total charge of +10 nC. A proton is located at a distance of 6 cm from the center of the glass bead. What is the magnitude of the force experienced by the proton
A 70kg man walks out on a 10kg beam that rests on, but is not attached to, two supports. When beam just starts to tip, what is the force exerted on the beam by the right support.
What is the acceleration of the crate.Describe a procedure to investigate the factors.
A car is traveling 72.0 km/h when the driver applies the brakes. If if car slows down uniformly with an acceleration of -4.5 m/s2, how far does the car travel before coming to rest.
A sailboat is traveling east at 5.0 m/s . A sudden gust of wind gives the boat an acceleration a = (0.80 m/s^2 , 40 degrees north of east). A)What is the boat's speed 4.5s later when the gust subsides? B)What is the boat's direction 4.5s later whe..
Illustrate what factors are likely to drive an organization's outlays for new capital? Illustrate what ratios would you use to help generate forecasts of these outlays?
A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.00 g coins stacked over the 15.0 cm mark, the stick is found to balance at the 42.0cm mark. What is the mass of the meter stick
A 32 -tall, 6.0 -diameter cylindrical beaker is filled to its brim with water. What is the downward force of the water
A model rocket rises with constant acceleration to the height of 3.7, at which point its speed is 25. what was the magnitude of the rocket's acceleration.
Calculate the change in the melting point of naphthalene for one atmosphere rise in pressure given that its melting point is 80 C. Latent heat of fusion is 4563 cal/mol and increase in volume on fusion is 18.70 cm3 per mol and 1 calorie = 4.2×10^7..
Two parallel wires of length 17 m are separated by a distance of a = 0.13 cm, What is the magnetic force on each wire
A home (volume = 1000 m3) built in 1946 has urea formaldehyde insulation, which outgases into the home at a rate of 5 ng/hr, What is the steady state concentration (C) of formaldehyde in the home
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