Aheavy box (100 kg) sits on a horizontal floor. its square base is 58.3 cm on each side and it is 150 cm tall. it’s packed so that its center of mass is at its geometrical center. to move it, you push to apply a horizontal force to its upper edge closest to you, and slowly increase your force until something happens. the coefficient of static friction between the box and the floor is 0.362, and the friction can be taken to act in the middle of the bottom of the box. a. will the box move horizontally or tip first? b. how much force will you be applying at that time?

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)

You are a researcher for a golf club manufacturer. you are given two identical looking cubes of a metal alloy. you are informed that they are made of the exact same material, but one is crystalline, whereas the other is amorphous. it is your job to determine which one is amorphous this one is more stress-resistant and is useful in reinforcing golf clubs. which of the following is the best way to determine which is which? a. determine the density of each cube. the more dense one is the amorphous solid. b. melt both cubes and look for a broader range of melting temperatures. the one that melts over a broader range of temperatures is the amorphous solid. c. determine the density of each cube. the less dense cube is the amorphous solid. d. melt both cubes and measure the range of melting temperatures. the one that melts over a narrower range of temperatures is the amorphous solid.

Which insurance would contradict the big bang theory