Physics

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The force exerted on the tires of a car to directly accelerate the car along a road is exerted by ... Started by acc299	3 Replies 155 Views	Jul 29, 2018 by frre432
If a car accelerates at a uniform 4.0 m/s2, how long will it take to reach a speed of 80 km/hr, ... Started by CQXA	1 Replies 53 Views	Jul 29, 2018 by smrtceo
If a helium-filled balloon is released on Earth, it rises. How would a helium-filled balloon move if ... Started by lilldybug07	1 Replies 139 Views	Jul 29, 2018 by anyusername12131
An unfortunate bug splatters on the windshield of a moving car. Describe the forces, impulses, ... Started by cmoore54	1 Replies 58 Views	Jul 29, 2018 by nikmaaacs
When a boulder and a pebble are dropped, why does the pebble pick up speed as quickly as the ... Started by Yolanda	3 Replies 136 Views	Jul 29, 2018 by Carissamariew
An electron enters a magnetic field of 0.75 T with a velocity perpendicular to the direction of the ... Started by Shelles	1 Replies 69 Views	Jul 29, 2018 by mceravolo
Why will girls wearing gym shoes win in a tug-of-war against boys wearing socks while the activity ... Started by melina_rosy	1 Replies 100 Views	Jul 29, 2018 by Carissamariew
Water flowing through a pipe suddenly comes to a section of pipe where the pipe diameter decreases ... Started by karateprodigy	1 Replies 148 Views	Jul 29, 2018 by makaylafy
On Mars, the acceleration due to gravity is 8 m/s/s. If an object is dropped over the surface of ... Started by mwit1967	3 Replies 126 Views	Jul 29, 2018 by missalyssa26
A diesel locomotive coasting at 10 km/h has an inelastic collision with a stationary flatcar. The ... Started by xclash	1 Replies 69 Views	Jul 29, 2018 by rnehls
On the moon, an object dropped from rest falls a distance of 1 m in 1 second. How far will it have ... Started by meagbuch	1 Replies 132 Views	Jul 29, 2018 by 234sdffa
J. Robert Oppenheimer was A) the head of the program to develop the world's first fusion bomb. ... Started by karateprodigy	1 Replies 172 Views	Jul 29, 2018 by Dinolord
An object in motion is an object that has A) acceleration. B) impulse. C) momentum. D) all of ... Started by Marty	3 Replies 85 Views	Jul 29, 2018 by cloudre37
A horizontal tube consists of a 7.0-cm diameter pipe that narrows to a 2.0-cm-diameter throat. In ... Started by TVarnum	1 Replies 92 Views	Jul 29, 2018 by nixon_s
A 14,000-kg boxcar is coasting at 1.50 m/s along a horizontal track when it suddenly hits and ... Started by DyllonKazuo	1 Replies 49 Views	Jul 29, 2018 by Li Jun
The bombs used against Japan were A) two plutonium bombs. B) two fusion bombs. C) two uranium ... Started by mydiamond	1 Replies 188 Views	Jul 29, 2018 by Dominic
On Mars, an object dropped from rest falls a distance of 4 m in 1 second. How far will it fall in 2 ... Started by OSWALD	3 Replies 439 Views	Jul 29, 2018 by aloop
A force could be best described as A) something that a body possesses, that enables it to keep ... Started by geodog55	1 Replies 91 Views	Jul 29, 2018 by ghepp
A locomotive is pulling 9 freight cars, each of which is loaded with the same weight. The mass of ... Started by RODY.ELKHALIL	1 Replies 126 Views	Jul 29, 2018 by AISCAMPING
The source of energy for the Hiroshima bomb was basically the same as the source of energy for A) ... Started by mcmcdaniel	1 Replies 124 Views	Jul 29, 2018 by babybsemail
A light-year is the distance that light travels in one year. The speed of light is 3.00 108 m/s. ... Started by nevelica	3 Replies 371 Views	Jul 29, 2018 by brittrenee
A car travels at 15 m/s for 10 s. It then speeds up with a constant acceleration of 2.0 m/s2 for 15 ... Started by codyclark	1 Replies 59 Views	Jul 29, 2018 by nikmaaacs
The two nuclei used for the fuel in fission bombs are A) 235Th and 235U. B) 234Th and 238U. C) ... Started by oliviahorn72	1 Replies 106 Views	Jul 29, 2018 by meganlapinski
A flat horizontal plate of area 400 cm2 is dragged over a 0.20 cm thick layer of oil at a speed of ... Started by anshika	1 Replies 115 Views	Jul 29, 2018 by ladyjames123
A 1200-kg cannon suddenly fires a cannonball at What is the recoil speed of the cannon? Assume that ... Started by CBme	3 Replies 203 Views	Jul 29, 2018 by Juro