Why is force exerted by static fluids always perpendicular

Introductory Chemistry 5
Problem 76P Match each monomer with the correct class of biopolymers. (a) Nucleotide (b) Saccharide (c) amino acid protein DNA Starch

An Introduction to Chemistry 2
Problem 23QP Diiodine pentoxide is used in respirators to remove carbon monoxide from air: I2O5(s) + 5CO(g) ? I2(s) + 5CO2(g) (a) What mass of carbon monoxide could be removed from air by a respirator that contains 50.0 g of diiodine pentoxide? (b) What mass of I2 would remain in the respirator?

Sears and Zemansky's University Physics with Modern Physics 13
Problem 7DQ Lane dividers on highways sometimes have regularly spaced ridges or ripples. When the tires of a moving car roll along such a divider, a musical note is produced. Why? Explain how this phenomenon could be used to measure the cars speed.

Calculus: Early Transcendentals 9
Find a formula for the inverse of the function. \(f(x)=1-x^{2}, \quad x \geqslant 0\)

Macroeconomics 22nd
Label each of the following scenarios as either frictional unemployment, structural unemployment, or cyclical unemployment.? a. Tim just graduated from college and is looking for a job. b. A recession causes a local factory to lay off 30 workers. c. Thousands of bus and truck drivers permanently l

Macroeconomics 22nd
Why is a quota more detrimental to an economy than a tariff that results in the same level of imports as the quota? What is the net outcome of either tariffs or quotas for the world economy?

Chemistry for today : general, organic, and biochemistry 9
Identify the 3' and 5' ends of the DNA segment AGTCAT.

College Physics: Explore and Apply 2
What simplifications were used to derive the formula for the period of vibration of an object at the end of a spring and of a simple pendulum?