Examine the scenarios. scenario w: a force of 75 n moves a box 15 m. scenario x: a force of 100 n moves a box 12 m. scenario y: a force of 50 n moves a box 20 m. scenario z: a force of 25 n moves a box 45 m. in which scenarios is the same amount of work done on the box?

w and x
w and z
x and y
y and z

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

Which of the following are guidelines to follow for obtaining accurate observations