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Vector A added to Vector B is equal to the magnitude of A added to the magnitude B, the vectors must be:A. perpendicularB. at 45 degrees to each otherC. parallel but oppositeD. parallel and in the same direction
what is the volume of an iron atom. What is the ratio of the mass density of girder A to the mass density of girder B.
A 50g marble moving at 2.2m/s strikes a 30g marble at rest. Assume the collision is perfectly elastic and the marbles collide head-on. What is the speed of the first marble
A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s. An observer waiting at the crossing receives a frequency of 208 Hz. What is the speed of the train
You are standing at a red light on SW 8th Street at 97th Avenue. The light turns green, find the work done on your car by the frictional force
To what distance x can a person who weighs 411-N walk on the overhanging part of the plank before it just begins to tip.
An ocean liner leaves New York City and travels 34.0° north of east for 169 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the subsequent directions.
The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius rh = 0.580 m and mass 4.89 kg, what should the radius of the disk be
A ball is shot from the ground into the air. At a height of 10.60 m, the velocity is observed to be v = (8.60 m/s) i + (6.50 m/s) j
A double-concave lens has equal radii of curvature of 15.1 cm. An object placed 14.2 cm from the lens forms a virtual image 4.94 cm from the lens. What is the index of refraction of the lens material
A particle with a charge of ?1.0 ?C and a mass of 2.4 10-6 kg is released from rest at point A and accelerates toward point B, What is the potential difference VB ? VA between A and B
If the same fish is attached to the end of the unstretched spring and then allowed to fall from rest, elucidate through what maximum distance does it stretch the spring?
What is the Carnot efficiency of a heat engine operating between the temperatures of 300 degrees C (573 K) and 100 degrees C (373 K)
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