"a car with mass m = 1000kg is traveling around a circular curve or radius r = 690 meters when it begins to rain.
the coefficients of static friction between the road and tires is μd = .64 when dry and μw = .23 when wet."

q: what is the maximum tangential speed that the car can take the corner at w/o slipping when dry in m/s?
q: when wet?

1. 65.78 m/s

2. 39.43 m/s

Explanation:

The centripetal force would be equal to force of friction.

where v is the tangential speed of the car, R is the radius of the curve and g is the acceleration due to gravity.

1. For dry,

2. For wet,

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.