COLLEGE PHYSICS:STRATEGIC APPR.AP ED.
4th Edition
ISBN: 9780137574728
Author: Knight
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 74GP
Ships A and B leave port together. For the next two hours, ship A travels at 20 mph in a direction 30º west of north while ship B travels 20º east of north at 25 mph.
a. What is the distance between the two ships two hours after they depart?
b. What is the speed of ship A as seen by ship B?
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Students have asked these similar questions
A = 45 kN
a = 60°
B = 20 kN
ẞ = 30°
Problem:M1.1
You and your friends are on an archaeological adventure and are trying to disarm an ancient trap to do so you
need to pull a log straight out of a hole in a wall. You have 1 rope that you can attach to the log and there are
currently 2 other ropes and weights attached to the end of the log. You
know the force and direction of the ropes currently attached are arranged
as shown below what is the magnitude and direction 'e' of the minimum
force you need to apply to the third rope for the force on the log to be in
direction of line 'a'? What is the resultant force in direction 'a'?
a
//////
//////
answer both questions
- 13-
3.
Shastri recalled reading that for an ideal transformer, "the ratio of the primary voltage to the
secondary voltage is equal to the ratio of the secondary current to the primary current."
Plan and design an experiment to investigate whether the statement above is true.
(8)
•
With the aid of a fully labelled circuit diagram, describe a procedure which can be used to
investigate whether the statement is true. The circuit diagram must include the following
components:
A variable AC voltage supply
•
AC voltmeters
•
AC ammeters
A transformer with adjustable turns ratio
Connecting wires
•
°
A load resistor
Chapter 3 Solutions
COLLEGE PHYSICS:STRATEGIC APPR.AP ED.
Ch. 3 - a. Can a vector have nonzero magnitude if a...Ch. 3 - Prob. 2CQCh. 3 - Suppose two vectors have unequal magnitudes. Can...Ch. 3 - Prob. 4CQCh. 3 - For a projectile, which of the following...Ch. 3 - A baseball player throws a ball at a 40 angle to...Ch. 3 - An athlete performing the long jump tries to...Ch. 3 - If you kick a football, at what angle to the...Ch. 3 - Prob. 9CQCh. 3 - Prob. 10CQ
Ch. 3 - If you go to a ski area, youll likely find that...Ch. 3 - In an amusement-park ride, cars rolling along at...Ch. 3 - There are competitions in which pilots fly small...Ch. 3 - Prob. 14CQCh. 3 - You are cycling around a circular track at a...Ch. 3 - An airplane has been directed to fly in a...Ch. 3 - When you go around a corner in your car, your car...Ch. 3 - A person trying to throw a ball as far as possible...Ch. 3 - Prob. 19CQCh. 3 - Prob. 20MCQCh. 3 - Prob. 21MCQCh. 3 - The gas pedal in a car is sometimes referred to as...Ch. 3 - A car travels at constant speed along the curved...Ch. 3 - Prob. 24MCQCh. 3 - Prob. 25MCQCh. 3 - Prob. 26MCQCh. 3 - Prob. 27MCQCh. 3 - A football is kicked at an angle of 30 with a...Ch. 3 - A football is kicked at an angle of 30 with a...Ch. 3 - Prob. 30MCQCh. 3 - Formula One race cars are capable of remarkable...Ch. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - A position vector with magnitude 10 m points to...Ch. 3 - A velocity vector 40 above the positive x-axis has...Ch. 3 - A cannon tilted upward at 30 fires a cannonball...Ch. 3 - Prob. 8PCh. 3 - Draw each of the following vectors, then find its...Ch. 3 - Draw each of the following vectors, then find its...Ch. 3 - Each of the following vectors is given in terms of...Ch. 3 - Each of the following vectors is given in terms of...Ch. 3 - A wildlife researcher is tracking a flock of...Ch. 3 - Jack and Jill ran up the hill at 3.0 m/s. The...Ch. 3 - Josh is climbing up a steep 34 slope, moving at a...Ch. 3 - You begin sliding down a 15 ski slope. Ignoring...Ch. 3 - A car traveling at 30 m/s runs out of gas while...Ch. 3 - In the Soapbox Derby, young participants build...Ch. 3 - A piano has been pushed to the top of the ramp at...Ch. 3 - Prob. 20PCh. 3 - A car goes around a corner in a circular arc at...Ch. 3 - Prob. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 26PCh. 3 - A ball is thrown horizontally from a 20-m-high...Ch. 3 - A ball with a horizontal speed of 1.25 m/s rolls...Ch. 3 - A pipe discharges storm water into a creek. Water...Ch. 3 - A pipe discharges storm water into a creek. Water...Ch. 3 - Prob. 31PCh. 3 - A rifle is aimed horizontally at a target 50 m...Ch. 3 - A gray kangaroo can bound across a flat stretch of...Ch. 3 - On the Apollo 14 mission to the moon, astronaut...Ch. 3 - Prob. 35PCh. 3 - Prob. 36PCh. 3 - Racing greyhounds are capable of rounding corners...Ch. 3 - To withstand g-forces of up to 10 gs, caused by...Ch. 3 - Prob. 39PCh. 3 - In a roundabout (or traffic circle), cars go...Ch. 3 - A particle rotates in a circle with centripetal...Ch. 3 - Entrance and exit ramps for freeways are often...Ch. 3 - A peregrine falcon in a tight, circular turn can...Ch. 3 - An airplane cruises at 880 km/h relative to the...Ch. 3 - Anita is running to the right at 5 m/s, as shown...Ch. 3 - Anita is running to the right at 5 m/s, as shown...Ch. 3 - Two children who are bored while waiting for their...Ch. 3 - A boat takes 3.0 h to travel 30 km down a river,...Ch. 3 - A particle rotates in a circle with centripetal...Ch. 3 - Suppose D=AB where vector A has components Ax = 5,...Ch. 3 - Suppose E = 2A+3B where vector A has components Ax...Ch. 3 - For the three vectors shown in Figure P3.47, the...Ch. 3 - Prob. 54GPCh. 3 - Prob. 55GPCh. 3 - A pilot in a small plane encounters shifting...Ch. 3 - Prob. 57GPCh. 3 - Prob. 58GPCh. 3 - A skier gliding across the snow at 3.0 m/s...Ch. 3 - Prob. 60GPCh. 3 - A physics student on Planet Exidor throws a ball,...Ch. 3 - Prob. 62GPCh. 3 - In 1780, in what is now referred to as Bradys...Ch. 3 - The longest recorded pass in an NFL game traveled...Ch. 3 - A spring-loaded gun, fired vertically, shoots a...Ch. 3 - Small-plane pilots regularly compete in message...Ch. 3 - Prob. 67GPCh. 3 - Trained dolphins are capable of a vertical leap of...Ch. 3 - A tennis player hits a ball 2.0 m above the...Ch. 3 - The shot put is a track-and-field event in which...Ch. 3 - Water at the top of Horseshoe Falls (part of...Ch. 3 - A supply plane needs to drop a package of food to...Ch. 3 - Prob. 73GPCh. 3 - Ships A and B leave port together. For the next...Ch. 3 - A flock of ducks is trying to migrate south for...Ch. 3 - A kayaker needs to paddle north across a...Ch. 3 - A plane has an airspeed of 200 mph. The pilot...Ch. 3 - The Gulf Stream off the east coast of the United...Ch. 3 - A ball thrown horizontally at 25 m/s travels a...Ch. 3 - A sports car is advertised as capable of reaching...Ch. 3 - A Ford Mustang can accelerate from 0 to 60 mph in...Ch. 3 - The Screaming Swing is a carnival ride that isnot...Ch. 3 - On an otherwise straight stretch of road near...Ch. 3 - Prob. 84MSPPCh. 3 - Prob. 85MSPPCh. 3 - Prob. 86MSPPCh. 3 - Prob. 87MSPPCh. 3 - Prob. 88MSPP
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