How many significant figures do each of following numbers have: (a) 214 _____, (

Question

How many significant figures do each of following numbers have: (a) 214 _____, (b) 81.60 _____, (c) 7.03 _____, (d) 0.03 _____, (e) 0.0086 _____, (f) 3236 _____, and (g) 8700 _____? Calculate the following using scientific (powers of 100) notation and round to the appropriate number of significant figures, given the quantities as they are expressed below: (i) (3.999 times 10^3) times (2.5 times 10^-5) = _____ (ii) 3.999 times 10^3 + 2.5 times 10^-5 = _____ (iii) (3.999 times 10^3)/(2.5 times 10^-3) = _____ Given that the Earth's radius is 6.37 times 10^m What are the circumference, volume, and surface area of the Earth? Please first state your answer as a formula before calculating a value (with units and in powers of 10 notation). circumference = _____ Volume = _____ Surface Area = _____. If an object moving in a circle of radius 1o km, travels through theta = 57.3 degree, of the circle, what distance has the object traveled? A sprinter runs at a speed of 10 m/s. Express this speed in miles per hour: Express the following in scientific powers of notation, using SI units: (i) 10^6 g (grams) _____ (ii) 600 nm (nanometers) _____ (iii) 10 mu m (microns) _____ The speed v an object is given by the equation v = At^3 - Vt, where t refers to time. (a) What are the dimensions of A of and B? _____ (b) What are the SI units for the constants A and B? _____ An average family of four uses roughly 1200 L (about 300 gallons) water per day (1L = 1000 cm^3). How much depth would a lake lose per year if it covered an area of 50 km^2 with uniform depth and supplied a local town with a population of 40,000 people? Consider only population uses, and neglect evaporation, rain creeks and rivers. Jim stands beside a wide river and wonders how wide it is. He spots a large rock on the bank directly across from him. He then walks upstream 6 strides and judges that the angle between him and the rock, which he can still see, is now at an angle of 30 degree downstream. Jim measures his stride to be about 0.8 m long. Estimate the width of the river. Determine the percent uncertainty in theta, and in sin theta, when (a) theta = 15.0 degree plusminus 0.5 degree. (b) theta = 75.0 degree plusminus 0.5 degree.

Explanation / Answer

Answer for significant figures can be obtained by converting given number into power notation.

a) 3

b) 4

c) 3

d) 1

e) 2

f) 4

g) 2

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.