Solve.Wind resistance or atmospheric drag tends to slow down moving objects. Atmospheric drag varies jointly as an object's surface area A and velocity v. If a car traveling at a speed of 60 mph with a surface area of 36 ft2 experiences a drag of 345.6 N (Newtons), how fast must a car with 45 ft2 of surface area travel in order to experience a drag force of 460.8 N?

A. 69 mph
B. 64 mph
C. 61 mph
D. 66 mph


Answer: B

Mathematics

You might also like to view...

Plot and label the given points.(5, 2), (-2, -2)

What will be an ideal response?

Mathematics

Use the Binomial Theorem to expand the binomial.(a3 - z4)6

A. a18 - z24 B. a18 - 6a15z4 - 30a12z8 + 120a9z12 + 360a6z16 - 720a3z20 - 720z24 C. a6 - 6a5z + 15a4z2 - 20a3z3 + 15a2z4 -6az5 + z6 D. a18 - 6a15z4 + 15a12z8 - 20a9z12 + 15a6z16 -6a3z20 + z24

Mathematics

Solve the problem.The velocity of water in ft/s at the point of discharge is given by  where P is the pressure  of the water at the point of discharge. Find the rate of change of the velocity with respect to pressure if the pressure is 

A. 1.57 ft/s per lb/in2 B. 55.01 ft/s per lb/in2 C. 0.7859 ft/s per lb/in2 D. 0.0939 ft/s per lb/in2

Mathematics

Use the properties of logarithms to rewrite the logarithm if possible. Assume that all variables represent positive real numbers.log5  

A. log5 s - log5 6 -  log5 r
B. log5 6 ?  log5 r ÷ log5 s
C. log5 6 +  log5 r - log5 s
D. log5 (6) - log5 s

Mathematics