Determine the difference in blood pressure (mmhg) between the top of the head and bottom of the feet of a 1.72-m-tall person standing vertically? the density of blood is 1.06 × 103 kg/m3. 1) what is the difference in blood pressure (mmhg) between the top of the head and bottom of the feet of a 1.72-m-tall person standing vertically? (express your answer to three significant figures.)

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

Calculate the velocity of a car traveling in a straight path due east with a distance of 16 meters in 2 seconds. question 1 options: a)32 m/s b)32 m/s e c) 8 m/s e d) 8 m/s

The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.