Estimate (don’t measure!) the length of a typical car. Give your answer in both feet and meters. Briefly describe how you arrived at this estimate.

Compute the following numbers, applying the significant figure rule adopted in this textbook.

a.

b.

c.

d.

Compute the following numbers, applying the significant figure rule adopted in this textbook.

a.

b.

c.

d.

Using the approximate conversion factors in Table 1.5, convert the following to SI units to English units without using your calculator.

a. 30 cm

b. 25 m/s

c. 5 km

d. 0.5 cm

Using the approximate conversion factors in Table 1.5, convert the following to SI units without using your calculator.

a. 20 ft

b. 60 mi

c. 60 mph

d. 8 in

Convert the following to SI units:

a) 3 hours

b) 2 days

c) 1 year

d) 215 ft/s

Convert the following to SI units:

a) 8.0 in

b) 66 ft/s

c) 60 mph

d) 14 in²

Convert the following to SI units:

a) 6.15 ms

b) 27.2 km

c) 112 km/h

d) 72 µm/ms