Physics, 03.07.2019 21:50, Govind3793
Asmall block of mass 1.57 kg rests on the left edge of a block of length 3.45 m and mass 7.04 kg. the coefficient of kinetic friction between the two blocks is 0.307, and the surface on which the 7.04 kg block rests is frictionless. a constant horizontal force of magnitude 10.4 n is applied to the 1.57 kg block, setting it in motion. 3.45 m 10.4 n 7.04 kg 1.57 kg 1.57 kg 7.04 kg 10.4 n how long will it take before this block reaches the right side of the 7.04 kg block? the acceleration of gravity is 9.8 m/s 2 . (note that both blocks are set in motion when f~ is applied. answer in units of s. 002 (part 2 of 2) 10.0 points how far did the 7.04 kg block move in
Answers: 3
Physics, 22.06.2019 19:30, QueenNerdy889
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
Physics, 23.06.2019 10:10, Jperez6541
Now that we have a feel for the state of the circuit in its steady state, let us obtain the expression for the current in the circuit as a function of time. note that we can use the loop rule (going around counterclockwise): e−vr−vl=0. note as well that vr=ir and vl=ldidt. using these equations, we can get, after some rearranging of the variables and making the subsitution x=er−i, dxx=−rldt. integrating both sides of this equation yields x=x0e−rt/l. use this last expression to obtain an expression for i(t). remember that x=er−i and that i0=i(0)=0. express your answer in terms of e, r, and l. you may or may not need all these variables. use the notation exp(x) for ex.
Answers: 1
Asmall block of mass 1.57 kg rests on the left edge of a block of length 3.45 m and mass 7.04 kg. th...
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