Write each number in scientific notation. (a) 129,540,000 (b) 7,259,000,000 (c) 0.0000000014 (d) 0.0007029

Q: How many significant figures are in the following numbers?(a) 78.9 ± 0.2 (b) 3.788 x 109 (c) 2.46 x…

A: To determine Significant Figures

Q: (a) A pyramid has a height of 478 ft and its base covers an area of 15.0 acres (see figure below).…

A: Given The height of the pyramid is h = 478 ft. The base area covers by the pyramid is B = 15 acres =…

Q: The micrometer (1 µm) is often called the micron. (a) How many microns make up 4.0 km? | um (b) What…

A: Given 1μm=10-6 m

Q: How many significant digits are in the exact number 155?

A: Given: The number is 155.

Q: A typical atom has a diameter of about 1 × 10^ -10 m. (a) What is this in inches? (b) Approximately…

A: given data diameter of each atom, d = 1.0*10-10 m 1 cm line what is this in inches? how many atoms?

Q: How many significant figures are in the number 0.00030100?

A:

Q: 6.5 [10] Show that 1 5 EuvEHV = 1 b2 – e? and EuyB#v = e•b

A:

Q: Two types of barrel units were in use in the 1920s in the United States. The apple barrel had a…

A: Solution: Given:  1 in3 = 0.0163871 liter   V1 = 1 apple-barrel = 7056 in3 V2 = 1 cranberry-barrel =…

Q: The number 0.0078 has how many significant figures? (a) 1.        (b) 2.      (c) 3.…

A: Given: 0.0078  The zeros which are after the decimal and before the non zero digits are not…

Q: The number of significant figures of the number 6.92 E-3 mm, is: A)2 B)4 C)1 D)3

A:

Q: a) A pyramid has a height of 484 ft and its base covers an area of 11.0 acres (see figure below).…

A:

Q: Consider the equation 4000/400 = 10.0. Assuming the number of significant figures in the answer is…

A: To determine: Find the number of significant figures in 4000 and 400.   Given: number, 4000 can be…

Q: Estimate the number of people in the world who are suffering from the common cold on any given day.…

A: Let there be an assumption that on average a person catches cold thrice a year and that the…

Q: The sum of the numbers 436.32, 227.2 and 0.301 in appropriate significant figures is (a) 663.821 (b)…

A: Adding the givens, Sum=436.32+227.2+0.301        =663.821

Q: The micrometer (1 um) is often called the micron. (a) How many microns make up 3.8 km? (b) How many…

A:

Q: Two types of barrel units were in use in the 1920s in the United States.The apple barrel had a…

A: Given: Volume of apple barrel = 7056 cu.inchesVolume of cranberry barrel = 5826 cu.inchesTotal…

Q: Convert to scientific notation 1. .005 = 2. 5,050= 3. 0.0008= 4. 1,000= 5. 1,000,000= 6. 0.25= 7.…

A: Scientific notation is a way of writing numbers or values of variables so that it became easy to…

Q: in the föllowing number: 1.20x10 3. 4 2. 5.

A: The significant figures of a number are those digits that carry meaning contributing to its…

Q: The number of significant figures in 0.06900 is (a) 5 (b) 4 (c) 2 (d) 3

A: The number of significant figures in 0.06900 is

Q: The dot product of vectors A and B is 6 sq. meters. If B = 3.5i + 5.1j – 3k meters and the angle…

A: Given data: Dot product of vector A and B = 6 m2 Vector B = 3.5i + 5.1j – 3k Angle between vector A…

Q: I bought a pack of 100 rectangular index cards. Each card measured 15 by 10 cm. The pack said ：Paper…

A:

Q: Exactly 640 acres are in one square mile, and one mile equals 1609 meters. How many square meters…

A: Given value--- 640 acres are in one square mile. one mile equals 1609 meters. We have to find---…

Q: The density of an object is defined as its mass divided by itsvolume. Suppose a rock’s mass and…

A: mass, m = 6 g  volume, V = 2.8325 cm3

Q: How many significant figures are in the following numbers? (a) 100.0 ± 0.4(b) 4.000 ✕ 106(c) 4.20 ✕…

A: The objective of this question is to determine the number of significant figures in the given…

Q: [A] = −kt + [A]0 What is the value of [A]0 if ..... [A] = -7.00x10^-2 k = 3.11x10^-4 t = 225

A: Given [A] = −kt + [A]0 [A]0 = [A] + kt

Q: Grass grows densely everywhere on a 0.300 acre plot of land. What is the approximate number of…

A: The are of the plot is A = 0.3 acreSince 1 acre = 43560 ft2,A = 0.3 × 43560 A = 13068 ft2 Ablade =…