Carry out the following operations and express the answer

Physics: Principles with Applications 7
How many significant figures do each of the following numbers have: (a) 214, (b) 81.60, (c) 7.03, (d) 0.03, (e) 0.0086, ( ) 3236, and (g) 8700?

Physics: Principles with Applications 6
Problem 51P (a) Compare the shift in frequency if a 2000-Hz source is moving toward you at 15 m/s, versus you moving toward it at 15 m/s. Are the two frequencies exactly the same? Are they close? (b) Repeat the calculation for 150 m/s and then again (c) for 300 m/s. What can you conclude about the

Chemistry 11
In determining the density of a rectangular metal bar. a student made the following measurements: length, 8.53 cm; width, 2.4 cm; height, 1.0 cm; mass, 52.7064 g. Calculate the density of the metal to the correct number of significant figures.

Biology 8
Which structure is not part ofthe endomembrane system? a. nuclear envelope d. plasma membrane b. chloroplast e. ER c. Golgi apparatus

Anatomy & Physiology 1
Which of the formed elements arise from myeloid stem cells? a. B cells b. natural killer cells c. platelets d. all of the above

Social Psychology 8
In experiments on obedience, most participants who were ordered to administer severe shocks to an innocent person refused to do so.

Urban Economics 8
Consider the example shown in Figure 139 . The initial net return is $70 in each activity, and there are 20 people in each activity. Suppose that instead of increasing the burglary penalty, we decrease the net return to lawful activity by half. This change is represented by a downward shift by $35 of

Urban Economics 8
Consider a region with a single factory city that developed as a result of scale economies in production. Consider the effects of a new matter transmitter, which can instantly transport goods (but not people) from the factory to any consumer up to 12 miles away, with a zero marginal cost of transport