Answer:

Explanation:
14 lb force is required to stretch the spring by 4 inch distance
So we have



stretch in the spring is given as

now we will have



Now we need to find the work to stretch it by x = 10 in = 0.254 m
so we have



Answer: C. Both observation 1 and observation 2
Explanation: A geocentric model shows the stars and the sun and where they move to.
God bless. <3
Well first of all, if the object's mass is 120 kg, then its mass is 120 kg.
It makes no difference where it happens to be located at the moment.
Its mass is 120 kg. Period. It doesn't change.
Weight = (mass) x (acceleration of gravity) .
Acceleration of gravity on the moon is 1.622 m/s² (rounded) .
Weight of the object = (120 kg) x (1.622 m/s²) = 194.6 Newtons.
(about 43.8 pounds)
The nearest choice is D). 196 N.
===========================================
When the bus starts moving forward, the man remains still.
He leans back, and soon catches up.
When the bus is moving but begins to slow down, the man
continues moving forward at the same speed. He leans forward,
until the bus stops, and then he eventually stops.
The simplest way to explain this (although it doesn't tell you much)
is to invoke 'inertia'. 'D' is the choice of the choices.