Chapter 1, Problem 1.62E

a 0.194 Gg to g, b 5.66 nm to m, c 0.00481 Mm to cm

1. Suppose a ruler is used to measure the length of an object as shown in the figure below. Laboratory Questions: Significant Figures cm Record a reasonable measurement showing appropriate significant figures. 2. Obtain a quantity of water. Using the thermometer from your lab drawer, record its temperature to the correct number of significant figures. 3. Circle which of the following mass measurements is more precise: 42.5 g or 42.456 g. 4. What is the uncertainty of a measurement written as 15.000? 5. State the number of significant figures in each of the following values. a. 30.01 d. 9.2500 x 10-3 b. 7.00 e. 8.05 x 106 c. 0.002900 f. 0.00000010 6. Perform each of the following computations using the measured quantities below. Write your final answer with the correct number of significant figures in proper scientific notation (one non-zero number to the left of the decimal point). 4 305 x (5.43 + 9.3) = Answer:4 73 trd a. 305 (50.40,9)=15402.195 b. (6.183 x 104)(6.720 x 10-7) =…

Please show me how to do this conversion using standard scientific no

Beaker directions: • Measure the liquid in the beaker. Look at what the lines stand for (these are very limited in their ability to measure). Account for all digits on the instrument and then add 1 estimated digit. • If there is not a line for a place value (1, 2, 3...), then that is the furthest you can estimate! O 48.05 48 48.0 100- 80 60 40 20 beaker B O 48.005

Show calculatons in a easy way.

An insulin syringe, a low volume syringe, commonly used for diabetic medication is intended for multiple use. Select one: a. False b. True Accuracy means Select one: a. All of these b. Closeness of a measured value to the real value C. A measure of how often an experimental value can be repeated d. The number of significant figures used in a measurement Basis for selecting the appropriate balance to use in weighing includes Select one: a. Precision and accuracy in weighing b. All these c. Weighing capaities d. Function that a balance performs

Student A measures an object and records a value of 1.5 cm. Student B measures the same object and records a value of 1.50 cm. They have both done their measurements correctly. Why do these measurements differ?

Please help with #3

1. A student wanted to find the density of an object of unknown composition with a volume of 5.50 0.05 cm³. The mass of the object was 19.255 0.005 g. What is the density of the object, including the absolute uncertainty? a. 3.500 ± 0.3 g cm³ b. 3.500 ± 0.03 g cm? c. 4.259 ± 0,6 g cm¹ d. 4,259 ± 0,06 g cm³