Physics

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A machine that promises more energy output than input is A) a fantasy. B) commonplace in today's ... Started by vicky	1 Replies 70 Views	Jul 29, 2018 by Ahernandez18
Impulse involves the time that a force acts, whereas work involves the A) distance that a force ... Started by mwit1967	1 Replies 99 Views	Jul 29, 2018 by alexanderhamilton
When you and your snowboard are in motion, which of the following can be zero? A) momentum B) ... Started by fagboi	1 Replies 50 Views	Jul 29, 2018 by stano32
If an all-electric car has kinetic energy, then it also must have A) impulse. B) momentum. C) ... Started by khang	3 Replies 60 Views	Jul 29, 2018 by samiel-sayed
If the speed of a motor scooter doubles, which of the following also doubles? A) momentum B) ... Started by Pineapplelove6	1 Replies 147 Views	Jul 29, 2018 by mjenn52
Compared to the recoiling cannon, a fired cannonball has a A) greater momentum. B) greater ... Started by dejastew	1 Replies 159 Views	Jul 29, 2018 by zhanghao
If a turntable's rotational speed is doubled, then the linear speed of a pet hamster sitting on the ... Started by abc	1 Replies 98 Views	Jul 29, 2018 by JaynaD87
If the planet Jupiter underwent gravitational collapse, its rate of rotation about its axis would ... Started by RYAN BANYAN	3 Replies 83 Views	Jul 29, 2018 by cdmart10
Horses with the greatest linear speed on a merry-go-round are located A) near the center. B) ... Started by Haya94	1 Replies 62 Views	Jul 29, 2018 by reversalruiz
Consider a string with several rocks tied along its length at equally spaced intervals. You whirl ... Started by Mr.Thesaxman	1 Replies 76 Views	Jul 29, 2018 by bobsmith
When a train makes a curve, a tapered wheel rim is able to A) cover different distances per ... Started by lindiwe	1 Replies 144 Views	Jul 29, 2018 by sarah_brady415
Your pet hamster sits on a record player that has constant angular speed. If the hamster moves to a ... Started by Mr.Thesaxman	3 Replies 253 Views	Jul 29, 2018 by raenoj
The circumference of a bicycle wheel is 2 meters. If it rotates at 1 revolution per second then its ... Started by gonzo233	1 Replies 120 Views	Jul 29, 2018 by trog
An industrial flywheel has a greater rotational inertia when most of its mass is A) nearer the ... Started by ishan	1 Replies 63 Views	Jul 29, 2018 by olivia_paige29
You can swing your legs to and fro more frequently when your legs are A) straight. B) bent. C) ... Started by nramada	1 Replies 85 Views	Jul 29, 2018 by smrerig
If you're on a Ferris wheel at a carnival, seated 10 m from the Ferris wheel's axis that makes a ... Started by wrbasek0	3 Replies 227 Views	Jul 29, 2018 by swimkari
A coin and a ring roll down an incline at the same time. The one to first reach the bottom is the ... Started by dmcintosh	1 Replies 68 Views	Jul 29, 2018 by kilada
A flywheel's diameter is twice that of another of the same shape and mass. Rotational inertia of the ... Started by audie	1 Replies 69 Views	Jul 29, 2018 by aprice35067
Consider two flywheels of the same size and shape, but one with twice the mass. Rotational inertia ... Started by OSWALD	1 Replies 57 Views	Jul 29, 2018 by cdmart10
Stand a meterstick on its end and let it rotate to the floor. If you attach a heavy glob of clay to ... Started by Charlie	3 Replies 84 Views	Jul 29, 2018 by 234sdffa
Which tin can will roll down an incline in the shortest time, one filled with water or one filled ... Started by Hungry!	1 Replies 82 Views	Jul 29, 2018 by steff9894
Which jar will roll down an incline in the shortest time, an empty one or one filled with peanut ... Started by jenna1	1 Replies 107 Views	Jul 29, 2018 by Sassygurl126
For a system in mechanical equilibrium, the resultant A) force must be zero. B) torque must be ... Started by bobbysung	1 Replies 68 Views	Jul 29, 2018 by apple
If you place a pipe over the end of a wrench when trying to rotate a stubborn bolt, effectively ... Started by Zulu123	3 Replies 92 Views	Jul 29, 2018 by prumorgan
A torque acting on an object tends to produce A) equilibrium. B) rotation. C) linear motion. ... Started by ishan	1 Replies 61 Views	Jul 29, 2018 by Tonny