A car accelerates uniformly in a straight line from rest at the rate of 3.7 m/s2 What is the speed of the car after it has traveled 63 m? Answer in units of m/s.
How long does it take the car to travel 63 m? Answer in units of s

Explanation:

Using equations of motion :

(A) we know that,

u = 0

a = 3.7 m/s^2

S = 63

(B)

v = u + at

21.6 = 0 + 3.7 * t

t (time to reach 63 m) = 5.83 seconds

d. platinum would have the greatest temperature increase because it has the lowest specific heat.

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =