Answer:
7900N
Explanation:
35cm = 0.35m
When the object is at the rope center, its position at 3.44 / 2 =1.72m. We can find out the angle that the sagged rope makes with the horizontal
this means the rope makes with the vertical an angel of
90 - 11.5= = 78.5 degree
The tension of the 2 ropes, T, should balance with the object weight
= \frac{3160}{2*0.2} = 7900N[/tex]
Answer:
C. The forces are balanced.
Explanation:
Every answer other than C means the object moved.
The Atlantic and Pacific<span> Canal </span>
Answer:
The fraction of the ball's kinetic energy stored in the spring is 3.6KJoules
Explanation:
Given
Mass of ball =0.5kg
Velocity of ball =120m/s
The kinetic energy stored by the ball is expressed as
K.E=1/2(m*v²)
Substituting our data into the expression we have
K. E=(0.5*120²)/2
K. E=7200/2
K.E=3,600 JOULE
K.E=3.6KiloJoules
An intensive property will not change if you took a piece ( like color or temperature )
<span>An extensive property will change ( like weight or volume) </span>
<span>1) wall: hard ( intensive); yellow (intensive) </span>
<span>2) ice cube: cold( intensive) ; large( extensive) </span>
<span>3) sofa: brown (intensive); long ( extensive) </span>
<span>4) dog: black ( intensive); heavy ( extensive) </span>
<span>5) stove: hot ( intensive); white (intensive) </span>