Physics, 10.03.2020 08:20, Sparkledog

Chapter 4, Problem 4/094 The ramp is used as passengers board a small commuter airplane. The total mass of the ramp and six passengers is 810 kg with a mass center at G. Determine the force in the hydraulic cylinder AB (positive if in tension, negative if in compression) and the magnitude of the pin reaction at C.

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answered: Guest

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.

answered: Guest

this could be newton#'s law of cooling. the cooling curve is exponential

answered: Guest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

answered: Guest

Answer form flower;

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Chapter 4, Problem 4/094 The ramp is used as passengers board a small commuter airplane. The total m...