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3) stands on a scale in an elevator that is rising at a
3) George stands on a scale in an elevator that is rising at a constant velocity and the scale reads 750 N. As it nears the top floor, the scale changes to 675 N. What is the acceleration of the eleva… read more
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An applied force F⃗a pushes a block with a mass of 25.0 kg
An applied force F⃗a pushes a block with a mass of 25.0 kg up a vertical frictionless wall. The force makes an angle of θ = 30.0◦ with the vertical. The block accelerates up the wall at a rate of 1.75… read more
DebdattaBhattacharya
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I have a few questions of general physiscs need answering. A
i have a few questions of general physiscs need answering … read more
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Need someone who has a good knowledge of physics to help me
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
Ryan
Bachelor's Degree
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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
Ryan
Bachelor's Degree
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001 (part 1 of 3) 8.0 points A 4.8 kg object is subjected
001 (part 1 of 3) 8.0 points A 4.8 kg object is subjected to two forces, F~ 1 = (2.8 N) ˆı + (−2.1 N) ˆ and F~ 2 = (3.3 N) ˆı + (−10 N) ˆ. The object is at rest at the origin at time t = 0. What is … read more
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A block of mass 7.23 kg lies on a frictionless horizontal
A block of mass 7.23 kg lies on a frictionless horizontal surface. The block is connected by a cord passing over a pulley to another block of mass 3.43 kg which hangs in the air. Assume the cord to be… 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
akch2002
Master's Degree
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a 10kg mass is on an incline of 35 degrees and it is connected
a 10kg mass is on an incline of 35 degrees and it is connected to a pulley that has a 20 kg mass hanging straight down. A) determine the acceleration of the system and the tension in the rope for the … read more
Chris
Retired
Doctoral Degree
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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
ScienceTutor
High School Science Teacher
Master's Degree
The weight of the block is 77.5 N. The coefficient of static
The weight of the block is 77.5 N. The coefficient of static friction between the block and the vertical wall is 0.550 with a 40 degree angle. A. what minimum force F is required to prevent the block … read more
Greg
Research Scientist
Doctoral Degree
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A 68 kg person on skis starts from rest down a hill sloped
A 68 kg person on skis starts from rest down a hill sloped at 39° from the horizontal. The coefficient of friction between the skis and the snow is 0.13. After the skier has been moving for 5.0 s, the… read more
abozer
Research Assistant
Bachelor's Degree
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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
abozer
Research Assistant
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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
Scott
Master's Degree
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Question 1. As part a of the drawing shows, two blocks are
Question 1. As part a of the drawing shows, two blocks are connected by a rope that passes over a set of pulleys. One block has a weight of m1 = 512 N, and the other has a weight of m2 = 908 N. The ro… read more
abozer
Research Assistant
Bachelor's Degree
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The instruments attached to a weather balloon have a mass ...
The instruments attached to a weather balloon have a mass of 4.6 kg. The balloon is released and exerts an upward force of 100 N on the instruments. (a) What is the acceleration of the balloon and ins… read more
Paul Klemstine
Senior Developer
Bachelor's Degree
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The instruments attached to a weather balloon have a mass ...
The instruments attached to a weather balloon have a mass of 4.6 kg. The balloon is released and exerts an upward force of 100 N on the instruments. (a) What is the acceleration of the balloon and ins… read more
mathsmart
Private Tutor
Bachelor Degree
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33.) 1.)A horizontal force of 12N acts on an object that ...
33.) 1.)A horizontal force of 12N acts on an object that rests on a level, frictionless surface on the earth, where the object has a weight of 98N. (a.) what is the magnitude of the acceleration of th… read more
J
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