Answer:
a) T = 20.601 N
b) T = 9.4585 N
Step-by-step explanation:
The tension in the string if the 5.8 kg box is held in place, so that it cannot move can be obtained as follows
For m = 2.1 Kg
∑ Fy = 0
T - W = 0 ⇒ T = W = m*g
⇒ T = 2.1 Kg*9.81 m/s²
⇒ T = 20.601 N (↑)
The tension in the string once the box begins to move can be obtained as follows
For M = 5.8 Kg
∑ Fx' = M*a
where x' is the direction of the slope
then
∑ Fx' = M*a ⇒ <em>T - M*g*Sin ∅ = M*a (I)</em>
For m = 2.1 Kg
∑ Fy = m*a
⇒ T - W = m*a
⇒ <em>T - m*g = m*a (II)</em>
If we solve the system of equations that comprises <em>I</em> and <em>II</em> we will know T:
T = M*m*g*(Sin ∅ -1) / (m - M)
⇒ T = (5.8 Kg)(2.1 Kg)(9.81 m/s²)(Sin 45º - 1) / (2.1 Kg - 5.8 Kg)
⇒ T = 9.4585 N
Answer:
C, A ,B, Use the numbers tho.
Step-by-step explanation:
They are ordered from coldest to warmest. I hope this helps!
Answer:
$455.84
Step-by-step explanation:
find area of the two halves of the circle and the rectangle
area of circle= 
where r= 2 ft
therefore
area of rectangle= 
where w= 4ft and l= 5ft
therefore
add areas together
it costs $14 per square foot and there are 32.566 square feet, so multiply
True because it had a strict pattern and measurable proportions. <span />
9pi trust me is the answer
