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Science

Physics

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College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.

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由
<Week 5 Homework
Colliding Cars
5 of 10
In this problem we will consider the collision of two cars
initially moving at right angles. We assume that after
the collision the cars stick together and travel off as a
single unit. The collision is therefore completely
inelastic.
I Review | Constants | Periodic Table
The two cars shown in the figure, of masses m, and
m2, collide at an intersection. Before the collision, car 1
was traveling eastward at a speed of v, and car 2 was
traveling northward at a speed of v9. (Figure 1)After the
collision, the two cars stick together and travel off in the
direction shown.
Part B
Find the tangent of the angle 0.
Express your answer in terms of the magnitudes of the initial momenta of the two cars, pi
and p2, or the quantities given in the problem introduction.
Figure
{ 1 of 1
» View Available Hint(s)
>
m
tan(0) =
Car 1
Submit
Previous Answers Request Answer
m2
X Incorrect; Try Again; 8 attempts remaining
Car 2
Part C
W

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Could you explain "I-K" ?
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The correct answer is 9.6 x 106J like it shows in the picture. I keep getting an answer like yours.
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question is at the top of picture 1