1%AY l. N eد امتحان الفصل الأول ف. وQ1: A ball is thrown horizontally from at Aand hits the ground (4.5 sec) later at B. theline of sight from A to B makes an angle of(500) with the horizontal. Compute themagnitude of the initial velocity (u) of theball.Q2: The speed of a car increases uniformly with time from (70 km/h) atA to (120 km/h) at B during (15 sec). The radius of curvature of the humpat A is 40 m. If the magnitude of the0.6 mtotal acceleration of the mass centerof the car is the same at B as at A,compute the radius of curvature psof the dip in the road at B. The mass40 mcenter of the car is 0.6 m from theBroad.Q3: The spring is upstretched when x-0. If thebody moves from the initial position x,=150mm to the final position x;=250 mm.determine7 kga) The work done by spring on the body.b) The work done on the body by itsweight.II

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Q1: A ball is thrown horizontally from at A 50 and hits the ground (4.5 sec) later at B. the line of sight from A to B makes an angle of (500) with the horizontal. Compute the magnitude of the initial velocity (u) of the ball. B

Q1: A ball is thrown horizontally from at A 50 and hits the ground (4.5 sec) later at B. the line of sight from A to B makes an angle of (500) with the horizontal. Compute the magnitude of the initial velocity (u) of the ball. B

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.

Question

1%AY l. N e
د امتحان الفصل الأول ف. و
Q1: A ball is thrown horizontally from at A
and hits the ground (4.5 sec) later at B. the
line of sight from A to B makes an angle of
(500) with the horizontal. Compute the
magnitude of the initial velocity (u) of the
ball.
Q2: The speed of a car increases uniformly with time from (70 km/h) at
A to (120 km/h) at B during (15 sec). The radius of curvature of the hump
at A is 40 m. If the magnitude of the
0.6 m
total acceleration of the mass center
of the car is the same at B as at A,
compute the radius of curvature ps
of the dip in the road at B. The mass
40 m
center of the car is 0.6 m from the
B
road.
Q3: The spring is upstretched when x-0. If the
body moves from the initial position x,=150
mm to the final position x;=250 mm.
determine
7 kg
a) The work done by spring on the body.
b) The work done on the body by its
weight.
II

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