For your cabin in the wilderness, you decide to build a primitive refrigerator out of styrofoam, planning to keep the interior cool with a block of ice that has an initial mass of 27.0 kg . the box has dimensions of 0.500 m ×0.850 m ×0.500 m . water from melting ice collects in the bottom of the box. suppose the ice block is at 0.00 ∘c and the outside temperature is 17.0 ∘c .
if the top of the empty box is never opened and you want the interior of the box to remain at 7.00 ∘c for exactly one week, until all the ice melts, what must be the thickness of the styrofoam?

1134567 a jet with mass m = 1.1 ă— 105 kg jet accelerates down the runway for takeoff at 2 m/s2. 1) what is the net horizontal force on the airplane as it accelerates for takeoff? 2.2*10^5 n your submissions: 2.2*10^5 computed value: 220000submitted: saturday, january 26 at 2: 41 pm feedback: correct! 2) what is the net vertical force on the airplane as it accelerates for takeoff? 0 n your submissions: 0 computed value: 0submitted: saturday, january 26 at 2: 41 pm feedback: correct! 3) once off the ground, the plane climbs upward for 20 seconds. during this time, the vertical speed increases from zero to 21 m/s, while the horizontal speed increases from 80 m/s to 95 m/s. what is the net horizontal force on the airplane as it climbs upward? n 4) what is the net vertical force on the airplane as it climbs upward? n 5) after reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 13 seconds. what is the net horizontal force on the airplane as it levels off? n 6) what is the net vertical force on the airplane as it levels off?

If vx = 7.00 units and vy = -7.60 units, determine the magnitude of v⃗ . determine the direction of v⃗ .

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane