Essays on Acceleration Due To Gravity

Q1. A 200mm diameter pipeline divides into two smaller pipelines, one being 100mm in diameter and the other being 150mm in diameter. If the velocity in the 100mm pipe is 0.3m/s and that in the 150mm is 0.6m/s, calculate the flowrate in litres/s and the velocity in m/s in the 200mm pipe. [ 13 l/s, 0.413m/s] Solution: Flow Rate = (pi/4)(0.1)2(0.3) + (pi/4)(0.15)2(0.6) = 0.01296 cubicmeters/sec = 12.96 l/sec. (ans.). Velocity = (Flow Rate)/(Area) = [0.01296]/[(pi/4)(0.1)2] = 0.4125 m/s. Q2. If the specific volume of water is 0.001251 m3 /kg. calculate:

The mass and weight ...

Question #8

Angular momentum refers to the resistance of a rotating body to change its spin rate or direction of spin. Angular momentum can be determined by the product of the moment of inertia and the angular velocity, or by the cross product of the moment arm and the product of the mass and velocity vector of the body (Sellers 2004, 112-113). For this particular problem, we will use the latter to determine the angular momentum. H=R×mV H=0.5 m×0.25 kg2 ms H=0.25 kg∙m2s Since angular momentum is conserved, the angular momentum of the system every point in time ...

The laws of physics encompass both the matter and non-matter, and their implications have been very useful to mankind. In this technological era, mankind has relied on science for both efficiency and effectiveness of tools, equipment, and gears. Various materials used for particular functions, from heavy to menial, have been enhanced, improved, and upgraded based on our understanding of their science. In this discussion, we will examine the physics behind basketball shoes. This discussion will focus heavily on the parameters that would greatly enhance the performance of basketball shoes. The history of basketball shoes was greatly influenced by the ...

The Simple Pendulum

Lab Details (Here)

Lab Partner:

(Partner’s Name) The Simple Pendulum

Introduction

The aim of this experiment was to experimentally find the time period of a simple pendulum, and use to compute the local acceleration due to gravity. These values were compared with the theoretical predictions based on the equation, =2πLg , where T is the time period, L is the effective length of the simple pendulum (measured quantity) and g is the local acceleration due to gravity. In order to compute the total error between the predicted and actual values, the effects of all random errors in each measured quantity ...

Experiment 2: Motion in one dimension

Introduction: Motion of a body in one dimension is basic study in physic and to have knowledge about motion in one dimension it is necessary to be acquainted with two fundamental laws of physics. One of them is Newton’s laws of motion and another is Newton’s law of gravity. There are three laws in Newton’s laws of motion, but in this paper only Newton’s second law of motion has been discussed. If force is applied on a body, the same will move as a result of applied force on the body. The body will remain in same ...

Introduction

A wide variety of everyday activities involuntarily applies fundamental laws of physics. While fishing, from casting to adding bait, physics is always at work. Even when fish latches on to the bait, it makes use of the water currents to its advantage to get away. Thus, pulling a fish in against the current requires a certain tension on the string to overcome the drag exerted by the fish, a particular tensile strength to ensure the string does not break, etc. The Laws of Motion, Newtonian Mechanics, etc. are continuously at work during fishing. This paper takes an intricate look at the physics ...

(1.1) This experiment is about determining the effect of angle of inclination in the acceleration of an object. The independent variable is the angle of inclination of the slope of motion; the dependent variable is the acceleration of the object.

Hypothesis

(1.2) The angle of inclination of the slope is directly proportional to the acceleration of the object. Without initial applied force, the only acceleration of the object would only be due to gravity. Thus, the relationship will follow the equation: a=gsinθ Where a is the acceleration of the object, g is acceleration due to gravity, and θ is the ...

TORSION LABORATORY

Objective The objective of this experiment was to determine the relationship between load and angular deflection of a mild steel bar, the maximum shear stress applied to the bar and its modulus of rigidity.

Apparatus

- Torsion test rig - Weight hangers - Masses - Rule - Calipers

Procedure

- A distance L was set between two angle indicators. Then the fixings were tightened to make sure that it was not moving. The indicators were set to zero on both the scales. - The effective radius of the pulley and the diameter of the steel shaft ...