An object with a mass of 78 kilograms is lifted through a height of 6 meters. how much work is done? a. 468j b. 4586.4 j c. 764.4 j d. 47.75 j

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!

Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?