Suppose you want to measure how fast your friend can run a race.  To do this, you set up a straight track with a starting line and a finishing line and have your friend run from one end to the other.  To calculate their speed, you need to know how far they ran and the time it took, so you measure the length of the track with a measuring tape, and you time your friend’s run using a stop watch.  Describe at least one possible source of random uncertainty and one possible source of systematic uncertainty that might exist in this type of experiment.  Remember, uncertainty does not include making a mistake!

Q: What is the speed of a car going v=1.000 mph in SI units? Notice that you will need to change miles…

A: As per the question, the speed of the car is v mph, we have to convert the speed of the car v in SI…

Q: The length of a race track is measured to be 50 m, with an uncertainty of 0.02 m. An athlete…

A: Length of track is 50 mAthelete complete the race is 6.972sThe uncertainty time measurement is…

Q: For the graph of vx versus t shown, estimate the following: i) What is the slope of the tangent line…

A: The above problem can be solved in two different ways. The first method using the two-point formula…

Q: 1. A student is using a track photogate to determine the time it takes her to run 50 meters. She…

A: Given information: The mean value of the time taken (Tavg) = 5.583714 sec Absolute uncertainty given…

Q: 2) A clock is advertised as being 99% accurate. Would you buy it? 3) Check the following equations…

A:

Q: Thickness question. you find an old book and decide to estimate the thickness of one of the sheets…

A: Given:- The all the sheets of the book are 3 inches thick,  Neglecting the front and back cover book…

Q: You are performing an experiment, and through analysis have determined that the value you were…

A: We will first calculate the percentage difference and then compare it with the uncertainity.

Q: 3. A locomotive train is on its way from Chicago, IL to Madison, WI. The trip is said to last 3.15…

A: Given : t = 3.15 hours T = 3.26 hours

Q: A student performs the experiment and measures the distance between photogates: d = 50 + 0.1 cm, the…

A: d = 50±0.1 cm t0 = 0.052±0.001 s s = 10±0.05 cm

Q: A car speedometer has a 8% uncertainty. What is the range of possible speeds (in km/h) when it reads…

A: Given , Reading of speedometer (v)= 63km/h  Uncertainty in car reading is 8%

Q: Find the volume of a thin rectangular box (cuboid) whose sides are measured as 5.2 cm, 12.4 cm, and…

A: Given: Measurement of sides of cubiod are a=5.2 cm b=12.4 cm c=13.42 mm = 1.342 cm To determine…

Q: A. Volume Measurement Problem: You have 3 empty containers. One container holds 3L, a second holds…

A:

Q: a student measures the time of flight of a projectile and gets the following values (in seconds):…

A: A student measures the time of flight of a projectile and gets the following values (in seconds):…

Q: A traffic patrol officer uses a UAV with a camera to measure the transit time of vehicles between…

A:

Q: . 2.13 When two objects (labeled by subscripts 1 and 2) of masses m, and ma collide, their initial…

A: given herem1= 1000kgm2=550v1=20 msv2=-35 msv1'=5 ms Momentum is to be conserved as mentioned in the…

Q: Caleb left home and traveled toward the city A at an average speed of 57.9 km/h. Some time later,…

A: To answer this, we should keep in mind that both Caleb and Kim started from the same place. Also the…

Q: FORM 3 PHYSICS REVISION SHEET 5. Two cars, Car A and Car B, participate in a drag race on a straight…

A:

Q: A car takes time t=(2.5±0.1) s to travel a distance Ax=(0.922±0.001) m. What is the relative…

A:

Q: While trying to make an important decision, your roommate paces back and forth along the hallway…

A: There are three time interval given. Lets calculate the average velocity for all three time…

Q: The radius of a circle is measured to be (11.7 ± 0.7) m. Calculate each of the following and give…

A: Determine the area of the circle.

Q: uncertainty.

A: Given: A function y=Asinωt A=2.054±0.012 m ω=2735±8 s-1 t=0.000341±0.00015 s Note: sinx+∆x=∆xcosx;…

Q: Andre, a physics undergraduate, enters a coffee shop that is holding a contest. Customers who guess…

A:

Q: Explain the difference between a rate of change that is positive and one that is negative. Give an…

A: The rate of change of a quantity means the rate at which the quantity is changing. This positive…

Q: You wish to compare the two experimental results the physicist got, so you decide to find the…

A:

Q: Kinetic energy KE (Chapter 5) has dimensions kgm2/s2. It can be written in terms of the momentum p…

A:

Q: A ball's velocity in the z-direction at two time instants is (0.55+0.03 m/s, 2.2±0.1 s) and…

A:

Q: If you have a simple pendulum where the equation of its linear graph is : L = g(T/2pi)2 where x =…

A: The length of the simple pendulum is, L=gT2π2 Here T is the time period. g is the accleration due to…

Q: (a) What does it mean when we say that the formulas used in physics are consistent with SI units?…

A: (a) There are several derived units in physics. Some of the most widely used SI derived units in…

Q: Tom Cogwagee Longboat, of the Six Nations of the Grand River, is one of Ontario's best known…

A: Given: Distance=39.2 kmTime=2hours, 24min, 24sec

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: Suppose a machine is invented to measure the amount of knowledge in a student’s head in units called…

A: (a) The rate at which the student is gaining (or losing) knowledge as a function of time is :…

Q: A rectangle has a length of (2.8 ± 0.2) m and a width of (1.7 ± 0.2) m. Calculate the area and the…

A:

Q: Physical units in mechanics are usually some combination of the dimensions time T, mass M, and…

A:

Q: Suppose your speedometer has an uncertainty of 4.5 km/h at a speed of 92 km/h. If the speedometer…

A: Speed (u) = 92 kmhr Uncertainty = 4.5 kmhrPercentage uncertainty = 4.5×10092= 4.89%

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.