(a) Calculate the pressure exerted by a phonograph needle on a record if the needle supports 2.00 g on a circular area whose circumference is 0.500? ??. (b) Express this pressure in newtons per square meter and in atmospheres
(a) Calculate the pressure exerted by a phonograph needle on a record if the needle supports...
The pressure exerted by a phonograph needle on a record is surprisingly large. If the equivalent of 0.500 g of mass is supported by a needle the tip of which is a circle 0.180mm in radius, what pressure is exerted on the record in N/m2? _N/m2
The pressure exerted by a phonograph needle on a record is surprisingly large, due to the very small width of the needle. If the equivalent of 0.85 g is supported by a needle, the tip of which is a circle 0.175 mm in radius, what pressure is exerted on the record, in pascals?
The pressure exerted by a phonograph needle on a record is surprisingly large. If the equivalent of 1.30 g is supported by a needle, the tip of which is a circle 0.240 mm in radius, what pressure is exerted on the record in N/m2? ______N/m2
Solve and please explain steps elaborately
(17%) Problem 2: The pressure exerted by a phonograph needle on a record is surprisingly large, due to the very small width of the needle If the equivalent of 0.95 g is supported by a needle, the tip of which is a circle 0205 mm in radius, what pressure is exerted on the record, in pascals? Grade Summary Deductions Potential 92 ted cotan asin0 acos0 atanO acotan sinh0) cosho tanh0 cotanhO 7 8 9...
cannot figure out 3-6
In units of A) N/m2 and B) Atmospheres, calculate the total pressure at the bottom of the Milwaukee Depth, the deepest part of the Bermuda Triangle, which reaches a depth of 8380 meters. 3. If the pressure in the hallway would suddenly drop by 10 %, and the room pressure remained at atmospheric pressure, what would be the amount of net force on the door, assuming the door has dimensions 3 ft x 7 ft and...
Be sure to answer all parts. Calculate the pressure exerted by 2.65 moles of CO2 confined in a volume of 4.03 L at 456 K. What pressure is predicted by the ideal gas equation? The van der Waals constants for CQ area 3.59 atm. L2/mol2 and b 0.0427 L/mol. van der Waals equation: ideal gas equation: [24.6 ]atm
3. Using the ideal gas law determine the pressure, in atmospheres, that a 48.0 gram sample of O: exerts at 127 C and in a volume of 2.47L P- atm 6. Pressure is a. defined as the mass that an object exerts when at rest b. measured in Newtons c. defined as the force per unit area d. defined as the number of moles of substance divided by the mass of the substance e. measured in grams 7. If temperature...
Please
answer exercise questions 2 & 7 and explain how you got the
answers.
132 Homework 3 Due Tuesday January 29 (if possible...) Read sections 10-1 through 10-5. Chapter 10 Questions: 2, Exercise 2: A circular suction cup with a radius of 4.50cm has one atmosphere pushing down on one side, a force F pulling up, and a vacuum underneath. What is force F required to cancel the force of the (one) atmosphere of pressure? (Ans, between 600 and 700N,...
1) Suppose that a woman weighing 150 lbs and wearing high-heeled shoes momentarily places all her weight on the heel of one foot. a) If the area of the heel is 0.55 in2, calculate the pressure exerted on the underlying surface in pounds per square inch. Express the answer in pounds per square inch to two significant figures. 2) A sample of gas (24.2 g) initially at 2.00 atm was compressed from 8.00 L to 2.00 L at constant temperature....
For ethane, Pc = 48.2 atm and Tc = 305.4 K. Calculate the pressure exerted by 50.0 g of C2H6 in a 200-cm3 vessel at 37.5°C using (a) the ideal-gas law; (b) the van der Waals equation. R= 82.06 cm3.atm/mol.K, T(K)=T(°C)+273.1. (a) P = ? atm (b) P = ? atm