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- (a) A person's blood pressure is measured to be 1202 mm Hg. What is its percent uncertainty? (b) Assuming the same percent uncertainty, what is the uncertainty in a blood pressure measurement of 80 mm Hg?Convert 13.7 billion yeans (the age of the Universe) to the appropriate SI unit. Be sure to report your answer with the correct number of significant figures.The distance to the Sun is 93 miIlion miles. What is the distance to the Sun in the appropriate SI units?
- 1%A9 li. t LTET 4G+ Vol) O A X O U 9:-7 Second H.W.pdf 1. Draw and label the vector with these components. Then determine the magnitude and angle of the vector. a- Az = 3 ,A, = -2 b- B, = -2 ,B, = 2 2. What is the speed of horse in meter per second that runs a distance of 1.2 miles in 2.4 minutes? 3. A car moving along X- axis according on the function: X (t) = 2 t2 + 5t +7 on [1,2] Find: a- The average velocity. b- The acceleration at 3s. 4. Julie is walking around a track at a 2m/s for some exercise. She then decides to start jogging so she accelerates at a rate of 0.5m/s? for 3 seconds. How far did Julie travel from the time she started to accelerate to the end of the 3 seconds? 5. Ralph uses a 2000 to do this. force to push his car along a road for 1000 m. It takes him500 s a- Calculate the amount of work that Ralph did on the car. b- Calculate the amount of power that he generated. IIThe density (p) of the atmosphere as a function of altitude (A) can be approximated by the model shown in the graph. What are the units of the constant 1.225? O A. dimensionless O B. kg m^3 OC. kg/m^3 O D. m^2/kg p= 1.225 e0.0001 A O E. m OF. kg O G. m^3/kg O H. kg/m^2 Altitude (A) (m] Density (p) [kg/m®]4. The error in measuring distance of a moving object is 3.44 x 10-12 m. If the mass of the object 115 lb, calculate the error in measuring speed. a.3.01 x 10^-19 Jb.1.20x10^-12 m/sc.5.84 x 10^-25 m/sd.3.12x 10 -10 m/s
- 1. Express the following numbers in scientific notation. a. 827 b. 4500201. If K has dimensions ML2/T2, the a in K= amv ? must A have the dimensions ML/T2. B. have the dimensions M. C. have the dimensions L/T2. D. have the dimensions L2/T?, E. be dimensionless.Convert 1.57 × 10−2 g/(cm)(s) to lbm/(ft)(s) A. 1.06 * 10-3 lbm/(ft)(s) B. 2.5 *10-3 lbm/(ft)(s) C. 5 *10-3 lbm/(ft)(s) D. 8.5 *10-3 lbm/(ft)(s)
- The table data: 15 1.75 13 1.63 11 1.5 9 1.35 7 1.19 5 1.01 3 0.78 A. Graph these data B. Describe the graph C. Using the data, calculate 1/2t^2 and complete table 2 belowb. Convert the following. Show complete solution. 1.44.5 cm to mm 2. 65kg to mg 3. 14 mg to g 4. 1002 L to MI 5. 300m/s to km/h 6. 5km/h to m/s0.3 Suppose the average daily metabolic rate for certain types of animals can be expressed as a function of mass by r= 120.9m where m is the mass of the animal (in kilograms) and r is the metabolic rate (in kcal per day). " dm dr dt a. If the mass of an animal is changing at a rate of find dt b. Determine for a 100-kg animal that is gaining mass at a rate of 3 kg per day. dr dt ... dr dt " dm a. If the mass of an animal is changing at a rate of dt " find dr 기 dt