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Indicate the SI base units or derived units that are appropriate for the following measurements:(a) the length of a marathon race (26 miles 385 yards)(b) the mass o...

Question

Indicate the SI base units or derived units that are appropriate for the following measurements:(a) the length of a marathon race (26 miles 385 yards)(b) the mass of an automobile(c) the volume of a swimming pool(d) the speed of an airplane(e) the density of gold(f) the area of a football field(g) the maximum temperature at the South Pole on April 1, 1913

Indicate the SI base units or derived units that are appropriate for the following measurements: (a) the length of a marathon race (26 miles 385 yards) (b) the mass of an automobile (c) the volume of a swimming pool (d) the speed of an airplane (e) the density of gold (f) the area of a football field (g) the maximum temperature at the South Pole on April 1, 1913



Answers

SI units are the internationally accepted units of measurements for basic quantities such as length, mass, time, electric current, temperature, amount of substance and luminous intensity. (a) The SI unit for measuring distances is meters. The length of a marathon race ( 26 miles 385 yards) ,the value is required to converted to meters which approximately equal $42178 \mathrm{~m}$ - (b) The SI unit for calculating mass is kilograms. Thus, for unit for measuring the mass of an automobile is $\mathrm{kg}$. (c) The volume of a swimming pool is measured from the product of length, breadth and height of the pool. Since each of the individual side is measured using SI unit of meters, the volume is calculated in $\mathrm{m}^{3}$. (d) The speed of an airplane is again a derived quantity as speed is measured from the SI quantities of distance and time. Thus unit of speed is $\mathrm{m} / \mathrm{s}$. (e) The density of gold is calculated from the ratio of mass and volume. While mass is a primary quantity and measured in kilograms, volume is derived from length and measured in meters. Thus the SI unit of density would be $\mathrm{kg} / \mathrm{m}^{3}$. (f) Area is a derived quantity of length which is measured in SI unit of meters. Thus, the area of football ground is measured in $\mathrm{m}^{2}$. (g) Temperature is a primary SI quantity measured in Kelvin. The maximum temperature at the South Pole on April 1, 1913 will be calculated using the SI unit $\mathrm{K}$.

All right, This is a pretty straightforward question. It's simply asking us giving us a bunch of different examples of different measurements and asking us to use the S. I. Units, um or assign S. I. Units for how we would we would measure those things. So the first one is talking about length and the S. I. Unit for length is meters. Um In the example it's a very long distance so we would probably use kilometers, but the S. I. Unit for length is meters. The next question or the next example asks about mass mass is unlike meters going to be measured in kilograms kg. Next we have an example asking about volume volumes. The S. I. Unit for volume is actually meters cubed meters cubed. And the fourth example is asking us for speed, believe the speed of a plane and the S. I. Unit for speed is measured in meters per second. Next is e example, E is asking us about density, density is a little bit less of a common one, um, but it is kilograms per meter cubed per meter cubed. Perfect. And I'll move over here for the last two. F is asking us about the area, I believe the area of a football field, it's a nice, easy one m squared, and the last one G is asking us about temperature and the S. I. Unit for temperature is degrees Celsius.

Well, everyone, this is Ricky. And today we're going to be working on Problem 37. So we have to, uh, right down the standard based units or drive units That would be appropriate for a list of measurements. And so first we have the mass of the moon would probably measured kilograms good distance from Dallas to Oklahoma City in meters, um, the speed of sound meters per second. The density of air is kilograms meters Q temperature at which alcohol boils, Kelvin, The area of the state of Delaware meters squared, and then the volume of a flu shot or measles vaccination meters cute. And so the order of magnitude for these, obviously, like the volume of a flu shot is definitely not gonna be measured in meters cubed. It's probably gonna be like Centimeters Cube. I would guess. Um, but we're dealing with the base units, um, or drive units. Um, so we're not messing with prefixes, so I hope this video is helpful, you know, soon

The problem here. US toe identified appropriate as units for each giving them so for letting a the appropriate unit this second. Because this item we need to measure time. What? I'm, uh It takes for a CB plea IHS Oh, around a certain number of minutes, which can be good for did seconds. Well, let me be the appropriate unit iss Villagra because this is the s unique or yes and the hardest white must've. So keep it up, misappropriate one for you often see the mobile unit a snake because it isn't as a unit for a living. And those soccer fields are quite wide, so it's still small breaking. So neither would be appropriate for a letter d appropriate unit would be sending do once again. We're talking about length here, and pizzas are quite small in size, so neither can be used. So should be intending for leather enough for bread unit ISS. Yeah, So sins were going about mess here and a piece off pepperoni is quite light. So for leather if so, as we knows, I messed This are usually you measured the number of these four weeks, but we know that those are not as units for today s A for time is second. So if we're going bird, um, around 90 days, two seconds will get around millions off six. So the appropriate as a unit for letter is made next for let g appropriate unit would be key long. So these because again, we're about men here. And given that your house is not in distance from your school, we're letting each she looking out because Kilogram, it's again, though, as you work mess and you months a great message so appropriate for leather, I appropriate you need to be. Since again, we're talking about lent her dimensions of the room. And the room is quite small for a kilometre, so meter would be the appropriate then lastly for letter G appropriate unit should be Cindy.

I usually have to write this. I in it for the given physical quantity or the major of for the TV given physical quantity which will be, you know, represent the best. These are expected from their damn instances. Well so the first backs unity will be nothing but seconds since against one is your kilogram card one needs you centimeter, centimeters And the fourth one is centimeters And the 5th 18 g. And next one is you make us against make us against year. There's not sooner So we will huge Amega seconds, seconds And the next one will be kilograms again. And the next one will you meet her again. And next one again the centimeter.


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