Consider an insulated container containing 1.62-kg ice at -17°c. Inside the container, there is a spherical object with radius 32 cm and at a certain temperature of 16370°c. Calculate the time (in hours) where all the ice has melter. Assume that sphere is a black body. Use the following: pi 3.14 c_water = 4190 J/kgK, c_ice = 2100 J/kgK, Lf 334,000 J/kg, 5.6704€ (-8) W/m2K4. Final answer in TWO decimal places.

Determine the force P required to move the wedge to the right if the coefficient of static friction is 0.35 at all contact surface (Figure 3). The uniform cylinder weight, W is 20 kN, and the weight of the wedge may be neglected. 15°

As an intern on the shop floor of your engineering firm, you are asked to come up with a makeshift door handle for a furnace. When the furnace is in operation, the external surface of the door is approximately 160°C. You search the scrap metal bin and find some sort of carbon steel rod that you believe you can bend into a U-shape and weld to the outer door surface. The rod is 50 cm long with a 6 mm diameter. There is negligible contact resistance through the weld joint and surrounding air at 24°C will cool the handle (h = 15 W/m² · K). a) You know that attaching a metal rod to a hot object might cause someone to get burned, so in analyzing your handle you want to be as cautious as possible. Since you don't know what kind of carbon steel you have found, you will have to estimate its relevant properties. Choose properties of the carbon steel from Table A.1 that will ultimately predict the largest handle temperatures during analysis. b) What is the coolest temperature of the handle? c)…

i need clear ans by hand and solve very very fast in 20 min and thank you | ᴅʏʙᴀʟᴀ ?✨؛