Question

1. when ranking each animal from lowest inertia to greatest inertia, the animal that is ranked fourth falls into which class? a. fish b. bird c. mammal d. invertebrate question 15 formula: speed = distance / time 15. calculate how far the mammal with the greatest inertia can travel in 0.75 hours at its top speed. a. 12.0 km b. 6.75 km c. 28.8 km d. 16.2 km question 16 16. which of the following objects has the greatest amount of inertia? a. an 88 kg box at rest b. a 67 kg crate moving at a constant velocity c. a 41 kg cart with an increasing velocity d. a 23 kg ball rolling down a hill

Explanation:

Question 14

Inertia is related to mass. Generally, among the given animal - classes, invertebrates are usually the smallest in mass, followed by fish, birds, and mammals. If ranking from lowest to greatest inertia (related to mass), the fourth - ranked would be a mammal.

Step1: Recall the speed - distance - time formula

The formula is $d = s\times t$, where $d$ is distance, $s$ is speed, and $t$ is time. We are given $t = 0.75$ hours. But we need to assume a top - speed value for the mammal with the greatest inertia. Let's assume a top - speed of 16.2 km/h for the mammal (since we are not given the actual speed in the problem, and we need to use the options to back - calculate). Then $d=s\times t=16.2\times0.75$.

Step2: Calculate the distance

$d = 16.2\times0.75=12.15$ km. If we assume a top - speed of 16.2 km/h, the distance is close to the value we would get from the formula. Let's check with the formula using the values from the options. If we assume the speed $s$ such that $d=s\times t$, when $t = 0.75$ h. If $d = 16.2$ km and $t=0.75$ h, then $s=\frac{d}{t}=\frac{16.2}{0.75}=21.6$ km/h. If we assume $d = 12.0$ km, $s=\frac{12.0}{0.75}=16$ km/h. If $d = 6.75$ km, $s=\frac{6.75}{0.75}=9$ km/h. If $d = 28.8$ km, $s=\frac{28.8}{0.75}=38.4$ km/h. A more reasonable top - speed for a large mammal and the closest value to a reasonable calculation is when $d = 16.2$ km.

Inertia is a measure of an object's mass. The greater the mass of an object, the greater its inertia, regardless of whether the object is at rest, moving at a constant velocity, or accelerating. Among the given objects, the 88 - kg box has the greatest mass.

Answer:

C. Mammal

Question 15