At what conditions of a system can the equation of Helmholtz free energy be applied? Select one: a. T- const V- const b. T= const U= const O c. V- const M -const d. M = const P- const

Q: box slides down a surface that is inclined at 53° below the horizontal. The coefficient of kinetic…

A: Givenm=8 kgθ=53°μk=0.4

Q: A 7.80-g bullet moving at 690 m/s penetrates a tree trunk to a depth of 5.10 cm. (a) Use work and…

A: Given : Mass of a bullet (m) = 7.80 g = 0.0078 kg Initial speed (vi) = 690 m/s Final speed (vf) = 0…

Q: a. Calculate the work done (in J) on a 1550 kg elevator car by its cable to lift it 39.5 m at…

A: Given : Mass of the car, m = 1550 kg Friction force, F = 135 N Lifted height of car, h = 39.5 m…

Q: O A system consists of three particles, each of mass 5.00 g. located at the coners of an equilateral…

A:

Q: A body moves with increasing speed.  Which of the following statements is true? A. The net work…

A: Given data:  A body moves with increasing speed Required: The correct statement about the work done…

Q: A(40kg) box initially at rest is pushed (5m) a long a rough horizontal floor with a constant applied…

A:

Q: You will be investigating different types of energy and how they change using a simulation of a…

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Q: Can the total mechanical energy E=K+U ever be negative? yes no

A: Yes, the mechanical energy can be negative