Which best contrasts newton’s and einstein’s ideas?

newton believed that mass tells objects how to move. einstein believed that the curvature of space-time tells force how to move objects.
newton believed that force tells mass how to move. einstein believed that the curvature of space-time tells velocity how to change.
newton believed that distance tells gravity how much force to exert. einstein believed that distance tells space-time how to curve.
newton believed that mass tells gravity how much force to exert. einstein believed that mass tells space-time how to curve.

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)

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f=ma newton

f=100x2.5=250n

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s