Answer:
The mass of the apples in the box are 1145.95 lb.
Explanation:
Given that,
Width = 3.5 ft
length = 3.5 ft
Depth = 2.75 feet
Density = 49.3 lb/ft³
We need to calculate the volume
Using formula of volume

Put the value


We need to calculate the mass
Using formula of density


Put the value into the formula


But porosity is 31 % so apples is 69% mass of total container.
So, Total mass in pounds is


Hence, The mass of the apples in the box are 1145.95 lb.
Answer:
Its about 5.9
Explanation:
it comes out as 5.90551
You take 15 and divide it by 2.54
Answer:
Work done, W = 6153.31 Joules
Explanation:
It is given that,
Weight of piano, W = F = 7382 N
It is pushed 2.16 meters friction less plank
The angle with horizontal, 
When the piano slide up plank at a slow constant rate. The y component of force is taken into consideration. The net force acting on it is given by :

Work done is given by :



W = 6153.31 Joules
So, the work done in sliding the piano up the plank is 6153.31 Joules. Hence, this is the required solution.
<span>The magnitude of her acceleration as she travels this 12 meters is 1.875m/s^2</span>
The position of the particle is given by:
x(t) = t³ - 12t² + 21t - 9
Differentiate x(t) with respect to t to find the velocity x'(t):
x'(t) = 3t² - 24t + 21
Differentiate x'(t) with respect to t to find the acceleration x''(t):
x''(t) = 6t - 24