What is the conductance of a 1.0-mm-diameter, 10-cm-long blood vessel filled with blood? Express your answer with the appropriate units. μА G= 4.9087 107 -69 wwwww ?
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- B A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls the air in and forces it through the resistors where it is heated. If the density of air is 1.15 kg/m3 at the inlet and 1.05 kg/m3 at the exit, determine the percent increase in the velocity of air as it flows through the hair dryer 1.05 kg/m³ The increase in velocity is Pin kg/m³ Check my work %6A graphite lead (diameter of 0.5mm, length of 5cm) reaches a temperature of 3077K when a voltage difference of 30.7 V is applied across its ends. Find the current (in A) through the lead.Consider the following circuit diagram. The potential difference across the battery is 40.0 volts, and it supplies a current of 5.00 amperes to the circuit. There is a current of of 2.70 amperes flowing through R1. Resistor R2 has a resistance of 5.50 ohms. What is the resistance of R3? Answer in ohms to two decimal places, but do not include units in your answer.
- The leaves of a tree lose water to the atmosphere via the process of transpiration. A particular tree loses water at the rate of 4.0 x 10-8 m3/s. What mass of water is lost over the course of a single day? (Use 1000 kg/m3 for the density of water). 3.456 v kg This water is replenished by the upward flow of sap through vessels in the tree's trunk. If the trunk contains about 1800 vessels, each 0.1 mm in diameter, what is the speed of the sap flowing in the vessels? 0.243 x mm/sSubject: phyA wire sample (0.75 mm in diameter and 20 cm in length) is placed in anelectrical circuit. A voltage drop of 464 mV is measured across the length ofthe wire as it carries a 2 A current. Calculate the electrical conductivity of thisalloy. From Table 4 below, which gives the conductivities of differentmaterials at 20C, identify the material. MaterialElectrical Conductivity(Sm-1)Manganin 2x106Nickel 14x106Aluminium 30x106Copper 50x106Silver 63x106Table 4. Conductivities of different materials at 20 C.
- Assumed that a tank of certain volume are to be filled with water. Youare task to investigate the water flow rate by a commercial waterpump. The desired flow rate must be very close to 20.0 L/s to saveelectricity and water. Your investigation came up with the followingdata of average flow rate for every trial. What do you think will be yourrecommendation?A fluid-filled catheter is 100 cm long and has a diameter of 1 mm. What is the resistance to the blood flow when the viscosity of blood is 0.0027 Newton-seconds (N-s)/m2. Calculate resistance in GPa-s/m3.To what temperature (in °C) must you raise a copper wire, originally at 20.0°C, to triple its resistance, neglecting any changes in dimensions? C