QUESTION 2 (Start on a new page.}
A block X of mass 5 kg is placed on a rough horizontal surface. It is connected to block Y of mass
3 kg by a passing over a frictionless pulley as shown in the diagram below.
a=1,5 m. s-2
ั
F
B
ั
A
200
A horizontal force F is applied to block X, resulting in it accelerating with 1,5 m. s? to the
right. The kinetic coefficient of friction along the rough surface BC, is 0,4. The inclined
plane surface AB, is frictionless. The angle between the inclined plane and horizontal is
20.
2.1 State Newton's Second Law in words.
(2)
2.2 Draw a labelled free-body diagram indicating all the forces acting on block Y,
while it is moving towards B on the inclined plane.
(3)
2.3 Calculate the magnitude of the tension T, in the string, connecting the block X
and block Y, while force F is applied.
(4)
(5)
2.4 Calculate the magnitude of the horizontal force F, applied to block X.
Answers: 1
Physics, 21.06.2019 22:30, jasoncarter
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 ร 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.
Answers: 1
Physics, 22.06.2019 10:30, Kathryn014
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
QUESTION 2 (Start on a new page.}
A block X of mass 5 kg is placed on a rough horizontal surface....
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