. Two students are performing an experiment where they roll a golf ball down a
shallow ramp that runs along the back wall of their classroom. The top end of the
ramp rests on a small stack of 4 textbooks and the bottom end rests on the floor. The
ramp is about 6 meters in total length. The students start the ball at rest from the
top, upper third, middle and lower third of the ramp. They measure the time required
for the ball to reach the bottom of the ramp after it is released. They calculate the
speed of the ball at different points on the ramp. Their data is remarkably consistent
from trial to trial. The summary of the ball's speed at various points on the ramp is
shown in the chart below.

Off ramp
Which of these conclusions are best supported by the data represented here?

A)The ball experiences equal increases in speed in equal amounts of
time as it rolls down the ramp.

B) The ball maintains a constant speed as it rolls down the ramp.

C) The ball experiences greater increases in speed in equal amounts
of time as it rolls down the ramp.

D) The ball experiences lessening increases in speed in equal
amounts of time as it rolls down the ramp

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

answer: question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.