The speed limit on certain interstate highways is 60 miles per hour. A) What is this in feet per second?
B) How many kilometers per hour is this?

A.88 feet per second.

B.96.56 km /hr

Explanation:

A

When converting from miles per hour to feet per second, we can use the following conversion factor.

1 mile per hour =  1.46667 feet per second.

Hence, 60 miles per hour will be = 60 X 1.46667 = 88 feet per second.

B.

Similarly, we can use the same process when converting from miles per hour to km per second.

1 mile = 1.60934 km

hence to convert we will multiply 60 miles/hour by 1.60934 km = 96.56 km /hr

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

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