How many significant figures are in the number 0.010?

A) four
B) three
C) two
D) one


C

Physics & Space Science

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Twenty milliseconds is

a. 0.00002 s. b. 0.0002 s. c. 0.002 s. d. 0.02 s. e. 20000 s.

Physics & Space Science

An electron is released form rest in a region of space where a uniform electric field is present. Joanna claims that its kinetic and potential energies both increase as it moves from its initial position to its final position. Sonya claims that they both decrease. Which one, if either, is correct?

a. Joanna, because the electron moves opposite to the direction of the field. b. Sonya, because the electron moves opposite to the direction of the field. c. Joanna, because the electron moves in the direction of the field. d. Sonya, because the electron moves in the direction of the field. e. Neither, because the kinetic energy increases while the electron moves to a point at a higher potential.

Physics & Space Science

If a hydrocarbon is not aliphatic, it is ______________

Fill in the blank(s) with correct word

Physics & Space Science

An X-ray technician takes an average of ten X-rays per day and receives 2.5 mrad per X-ray. What is the total dose the technician receives in 250 working days?

A) 2.50 rem B) 5.00 rem C) 6.25 rem D) 7.75 rem E) 12.5 rem

Physics & Space Science