A person measures his or her heart rate by counting the number of beats in 30 s. If 40 ± 1 beats are counted in 30.0 ± 0.5 s, what is the heart rate and its uncertainty in beats per minute?

Q: About how much (in percent) does an error of 1% in x and y affect x3y2?

A: Percentage error = x3y2

Q: In which step does the student make a mistake in reporting the following measurement? 1. Takes the…

A: Step 3

Q: The length and width of a rectangular room are measured to be 3.764 + 0.005 m and 4.030 + 0.005 m.…

A: As all the-given values are of three significant decimal digits so answer should also be rounded off…

Q: ALCULATE CALCULATE       Mass Density ρ= m/V (grams/cm^3)  Volume , V=(π*(d^2)* t)/4 (cm^3)

A: Given,   Relative Uncertainty in mass δm/m (%) Relative Uncertainty in Diameter δd/d (%) Relative…

Q: A digital timer, used in an experiment, displays 0.5378 s.  What is the uncertainty, due to the…

A: The uncertainty in a measurement is basically the least value that can be measured by that…

Q: In a Measurement ,the Expected value is 56 V and the measured value is 52 V. Find (i) Absolute error…

A: Given  Expected value. Is 56 Measured value is 52.

Q: MEASURED USING CENTIMETER RULER MEASURED USING CENTIMETER RULER   Measured Diameter d (cm) Measured…

A: Solution: Calculate the relative uncertainty in diameter for dime. ∆Uddime=0.051.76×100=2.84%…

Q: Calculate the absolute error, relative error, parts per thousand and parts per million error for the…

A: Absolute error is given as:  A.E=xi-x…

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

A:

Q: What mass in kg of rain falls on the lawn in 4 h 24 min, if each raindrop weighed 49.0 ng and on…

A: Weight of one raindrop m=49 ng=49*10-12kg, number of raindrops falling per minute n=8.4*109 and…

Q: A good-quality measuring tape can be off by 0.50 cm over a distance of 20 m. What is its percent…

A:

Q: By measuring the acceleration due to gravity a student finds gA=(9.85+-0.08)m/s^2. A student B finds…

A: Note: You have posted a question with more than three subparts.  As per our policy, if nothing is…

Q: Find the uncertainty in a calculated average speed from the measurements of distance and time.…

A: Given data: x = 6.4 m and δx=0.6 m t = 4.9 s and δt=1.3 s

Q: Our classroom was kept at 25.0°C during your experiment, so v is predicted to be 343 m/s. What is…

A: Given data :              Speed of sound in air ;                                          Expected…

Q: Find the nominal value and uncertainty in; Volume 1. XYZ =

A: Given : R=2.65 +/- 0.15    h=12.5+/- 0.1   M=136+/- 3 X=5.69+/-0.02  y = 7.88+/- 0.04…

Q: What is the percent uncertainty in the measurement 3.99±0.35m?

A: Here, the absolute uncertainty in the length is given. First, find the ratio of uncertainty with…

Q: When nonmetric units we used in the United Kingdom, a unit of mass called the pound-mass (Ibm) was…

A:

Q: If x = 3.54 ± 0.02 y 8.03 ± 0.04 z = 5.02 ± 0.02, what is the absolute uncertainty in f = (x + y -…

A: A quantity can be written as x = x ± Δx  x = measured value Δx = uncertainty in meassurement

Q: What, approximately, is the percent uncertainty for a measurement given as 1.57 m2?

A:

Q: A rectangular brass bar, of mass M, has dimensions a, b, c. The following results They were…

A: to find the uncertainty in the density of the material we need to find the percent error then do the…

Q: What is the reported value of the length of the book with uncertainty? If the length (l) of a book…

A: data,l1 = 8.21cml2 = 8.24cml3 = 8.22cml4 = 8.23cml5 = 8.24cml6 = 8.22cml7 = 8.23cmmean value would…

Q: An infant’s pulse rate is measured to be (130.0 + 5.0) beats/min. What is the absolute uncertainty…

A: Given that:- Infant pulse rate=(130+5) beat/min

Q: One mole of atoms consists of 6.02 × 1023 individual atoms.  If one mole of unicorn atoms were…

A:

Q: An infant’s pulse rate is measured to be 130 ± 5 beats/min. What is the percent uncertainty in this…

A: Formula for calculating percent uncertainty can be express as -  Where

Q: The radius of a solid sphere is measured to be (6.30 i 0.30) cm, and its mass is measured to be…

A: (given) Radius of the sphere = 6.30 cm = 6.30×10-2 m Uncertainty in the radius δr = 0.30 cm =…

Q: what is the minutes the error taken for hours if greg to hours tarren?.

A: we know, 1 hour = 60 min time taken = 10 min = 10/60 hours = 0.166 hours error in time =± 0.3 min =…

Q: When non-metric units were used in the United Kingdom,a unit of mass called the pound-mass (lbm) was…

A:

Q: The following formula estimates an average person’s lung capacity V (in liters, where (1L=103cm3)…

A: In the equation :V = 4.1H +0.018A +2.7All the terms must have same all dimension to be accordingly…

Q: In a Measurement ,the Expected value is 72 V and the measured value is 63 V. Find (i) Absolute error…

A: (i) The absolute error is given by :  (ii) The relative error is given by :

Q: Function f is defined by = x/ where x = 4.35 + 0.05 and y = 1.25 +0.01 Calculate the absolute…

A: Given that value of x and y and also given the function f then we have to calculate  the absolute…

Q: Two wood beams are stuck together with wood glue to create a wooden floor beam. The length of the…

A:

Q: If actual value of f(x1)=0,56 and the approximate value of f(x1)=0,6, calculate the relative error?

A:

Q: What is the percent uncertainty in the area of a circle whose radius is 1.8 × 104 cm?

A:

Q: What is the percent difference between 9.81 m/s2 and 992.31 cm/s2?

A: If we consider both the values only as experimental values then Value V1= 9.81m/s² Value…

Q: You also measure the length of a side of the cube using a ruler and get the value 3.15+0.05 cm.…

A: We need to calculate volume with proper error uncertainty value.

Q: State how many significant figures are proper in the results of the following calculations: (a)…

A: In the question, the number with least number of significant figures is 98.2 and 1.01 with three…

Q: A rectangle has a length of (5.1 ± 0.2) m and a width of (2.3 ± 0.1) m. Calculate: (a) the area and…

A:

Q: In one of the labs, a student found the length and width of a rectangular wooden board. The recorded…

A: Given data: Length (l) = 35.7 cm Width (b) = 28.6 cm

Q: A digital micrometer measures the diameter of two cylinders. Cylinder 1 diameter = 15.22 ± 0.02 mm…

A: Uncertainty in difference or addition is given by direct addition of uncertainty in given…

Q: A parameter x is measured with a relative uncertainty of 4 percent. If x=19.0, what is the absolute…

A: Given data:

Q: Estimating Errors for Multiple MeaSurements of a Physical Quantity Using variance Distance (M)…

A: Actual value of a physical quantity x = x1 + x2 + •••••+xn /n

Q: 1.4 Units in equations Given that the following equation calculates position in meters (x) as a…

A:

Q: How many significant figures are there in 0.003048

A: 0.003048

Q: A rectangle (J) of iongth (1) equals 20 cm, and width (w) equals 5 cm.f the uncertointy in measuring…

A:

Q: The diameter, d, of a small circular play area is 5.0 m + 0.1 m. The area, A, is calculated using…

A: The area is calculated using the equation,…

Q: What is the area, and its approximate uncertainty, of a circle of radius 3.1 × 104 cm?

A: Given: Radius of circle=R=3.1×104 In this Question, we would Assume an uncertainty in the radius of…

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.