Se Two students need to move two identical boxes of mass Mo across a room where friction
between the floor and the boxes cannot be neglected. One student moves the first box by
pushing with a force of magnitude Fo at an angle O from the horizontal, as shown in the figure for
scenario 1. The other student moves the second box by pulling with a force of magnitude Fo at
the same angle from the horizontal, as shown in the figure for scenario 2.
Which of the following is a correct expression for the acceleration of the box in scenario 2 ?
A
Focos 6–H(Mo 9-F, sin )
M
B
Focos 6-4(M 9+F, sin )
M.
Focos 0+(Mo 9-Fosin )
M
Focos 0+4M 9+F, sin 6)
мо
(

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is