Question

A student ate a Thanksgiving dinner that totaled 2800 Cal . He wants to use up all that energy by lifting a 23-kg mass a distance of 1.0 m. Assume that he lifts the mass with constant velocity and no work is required in lowering the mass.

Part A Part complete How many times must he lift the mass? Express your answer using two significant figures. N = 5.2×104 SubmitPrevious Answers Correct Part B If he can lift and lower the mass once every 5.2 s , how long does this exercise take? Express your answer using two significant figures. t= 3.39{\cdot}10^{5}   s   Submit

Answer 1

Cenvert Calories to emesay osue 1 n Find the or mount ot joules 2 800 col84 2800 Joci 1171 S, 2.J ed Find the onmroumt of tnengy ugu to uke the mos lork- Fosce x Displacement- No. of times ,the mass cam be 11715-2/225.C N= 51.9a