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If you hold a book with your palms facing up and the book on
quot;If you hold a book with your palms facing up and the book on top while walking forward, are you doing work on the book?""since the friction between your hands and the book is in the direction of … read more
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Need someone who has a good knowledge of physics to help me with these problems please!! (See attached word doc file). If you want to split them up into two sections, that is fine. However, I need ass… read more
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Please help!! I desperately need help with these physics questions, I'm just no good with physics equations. Here are my questions: 1. Suppose you apply a force of 1 N to block A and a force of 2 N to… read more
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986056RR 1. Electrons are emitted from a conductor when the
986056RR 1. Electrons are emitted from a conductor when the conductor is A. exposed to weak light. B. subjected to a small voltage. C. bombarded by high-speed electrons. D. cooled rapidly. 2. In a cat… read more
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a uniform steel bar with a weight of 98N and a length of 3.0m
a uniform steel bar with a weight of 98N and a length of 3.0m is suspended on each end by a rope. a 50.0kg mass hangs 50.0cm from the left end of the bar. there is a 75.0kg mass hanging 75.0cm from th… read more
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1. Two Bowling balls, each of mass 5 Kg, are located so that
1. Two Bowling balls, each of mass 5 Kg, are located so that their centers of mass are 0.5 m apart. What is the size of the force of universal gravitation attracting one to another? 2. The Internation… read more
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What is the difference between a hypothesis and a law Between
What is the difference between a hypothesis and a law? Between a law and a theory? 2. The speedometer of a European car gives its speed in kilometers per hour. What is the car's speed in miles per hou… read more
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In order to handle a hot pizza of mass 1.0 kg, a cook slides
In order to handle a hot pizza of mass 1.0 kg, a cook slides a light (i.e., of negligible mass) but stiff spatula of length 2.0 m from the right hand to the center of the pizza, which he then carries … read more
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Scaffolding is hanging from the roof of a building and two
Scaffolding is hanging from the roof of a building and two window washers are on the scaffolding, one at each end. The scaffolding weighs 325 Newtons(N). The worker on the left weighs 275 N and the wo… read more
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Your hand exerts a 6.6 N upward force on a pound of sugar.
Your hand exerts a 6.6 N upward force on a pound of sugar. Considering the force of gravity on the sugar, what is the net force on the sugar? Give the magnitude and direction.… read more
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A pry bar is a device used to lift heavy objects a small ...
A pry bar is a device used to lift heavy objects a small distance. It consists of a long rod that rests on a fulcrum or pivot point a short distance from the lifting end of the bar. Suppose that the f… read more
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1. Two forces are exerted on an object. A 34 N force acts ...
1. Two forces are exerted on an object. A 34 N force acts at 240° and a 48 N force acts at 315°. What are the magnitude and direction of the equilibrant?_____ N _________° 2. An trunk weighing 526 N i… read more
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Two ropes are attached to a block with a mass of 75 kg.
Two ropes are attached to a block with a mass of 75 kg. One rope pulls on the block at an angle of 30 degrees to the north of east and exerts a force of 200 N. The second rope pulls an angle of 15 deg… read more
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Consider two blocks pushed along a frictionless surface by
Consider two blocks pushed along a frictionless surface by someone who exerts a constant force with his or her hand. Imagine that block A has a mass of 4.o kg block B has a mass of 2.0 kg and the hand… read more
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A 233 N force is exerted on a crate toward the north and ...
A 233 N force is exerted on a crate toward the north and the 143 N force is exerted toward the east. Find the magnitude and direction of the net force. ______N ______° north of east Calculate the forc… read more
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IS GRAVITY A STRONGER FORCE PUSHING ON THE SEA THAN THIN AIR
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What is the physics behind a mouse trap powered car
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Associate Degree
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