Rewrite 3.41 × 10⁻⁴ in standard form:

Rewrite 9.98 × 10⁷  in standard form.

The position of an object is given by 𝓍 = At + Bt², where 𝓍 is in meters and t is in seconds. What are the units of A and B?

Write out the following numbers in full with the correct number of zeros: 2.5 x 10⁻¹

Time intervals measured with a physical stopwatch typically have an uncertainty of about 0.2 s, due to human reaction time at the start and stop moments. What is the percent uncertainty of a hand-timed measurement of 4.5 min?

A watch manufacturer claims that its watches gain or lose no more than 9 seconds in a year. How accurate are these watches, expressed as a percentage?

Write the following as full (decimal) numbers without prefixes on the units: 22.5 nm.