20N..........................
Answer:Sample Response: The law of conservation of mass states that the total amount of mass remains constant in a system. In ecology, this means that when an organism is eaten, its mass is conserved. Some of the organism’s mass is used to make new proteins, and some of it is passed as waste in the form of urine or feces. The rest is converted directly into energy. This energy helps the consumer to move and grow, and it helps it to build and repair new tissue.
Explanation:
Instantaneous acceleration is defined as rate of change in velocity
it is given by the equation
so here it shows that acceleration is always depends on change in velocity with time and now if we required this change in velocity with time for a small instant of time then it will be given by the slope of velocity and time graph.
So here the graph must be like this to find the slope of any graph we always use the concept that for any graph between y and x we use
if we compare it with the formula of acceleration above
then on Y axis we must have to draw the speed and on x axis we must have to draw the time
so correct answer must be
<u> d) Place time on the x-axis and velocity on the y-axis</u>
Answer:
The circumference of the bromine atom is 628 pm
Explanation:
The formula for the circumference of a circle is 2πr.
Where π is 3.14 and r is the radius of the circle.
Since atoms have a circular shape. The formula above can be used to determine the circumference of an atom (bromine atom in particular).
circumference of the bromine atom is 2πr (where r is 100 pm)
2 × 3.14 × 100 = 628 pm.
The circumference of the bromine atom is 628 pm
'<em>Distance</em>' is how far you walk on your afternoon walk, while you cut across the park, go two blocks out of your way to visit a friend, and cross the street several times in both directions to avoid some big-looking dogs. Every step counts for distance. Distance only has a size but no direction, because the direction could change a hundred times during the trip. And from the time you leave home until you return home, the distance could be 5 miles or more.
'<em>Displacement</em>' is very different. Displacement is just the straight-line distance between the starting point and the end point, <em>regardless of the route</em> that was
followed between them. It has a size ... the distance between them, and it also has a direction ... the direction from start to finish. And if you start out from home and return home, then your displacement for that trip is zero, because there's <em>no</em> straight-line distance from the starting point to the end point.