What is time dilation

“slowing down” of a clock as determined by an observer in relative motion

What is the principle of relativity?

the equations describing the laws of physics is as same as the all frames

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Physics Exam 1

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Answers

1
Use the quadratic formula to solve for: m2 − 5m − 14 = 0
12 ± 4 / 6
7 ± 2 / 4
7 ± 5 / 3
5 ± 9 / 2
2
Use the quadratic formula to solve for: b2 - 4b + 4 = 0
6 ± 2 / 3
2
4
1
3
Which of the following is NOT one of Newton's Three Laws of Motion?
For every action, there is an equal and opposite reaction;
An object in motion stays in motion unless acted upon by another force;
What goes up, must come down
Force = Mass * Acceleration
4
A bicyclist accelerates at 0.89m/s2 during a 5.0 interval. What is the change in speed of the bicyclist and the bicycle
5.4 m/s
3.6 m/s/s
9 m/s
4.5 m/s
5
Solve each system by elimination: 6x-12y=24 -x-6y = 4
(6,3)
(2,2)
(-1,-8)
(2,-1)
6
System of Equations: Solve each system using elimination: -16 + 20x -8y = 0 36= -18y -22x
(0, -2)
(2, 7)
(-7, 3)
(5, 2)
7
What is the quadratic formula?
(-b±√(b²-2ac))/(7a)
(-b±√(b²-4ac))/(2a)
(-b±√(b²-4ac))/(5a)
-b+Abc((2)(4)/2
8
Find Sin (C)
15 / 29
30/1.5
21 / 29
7
9
What is time dilation
when time is distorted by a shooting star
The bending of light and time due to refraction
“slowing down” of a clock as determined by an observer in relative motion
the concept that time is absolute
10
What is the principle of relativity?
all objects have a definitive size and shape relative to all other objects
a discovery that led to the first successful teleportation of an object
the equations describing the laws of physics is as same as the all frames
everything we do should be compared with other similar endevors
11
A beach ball is rolling in a straight line toward you at a speed of 0.5 m/sec. Its momentum is 0.25 kg m/sec. Find BB M.
2 Kg
55 Kg
0.5 Kg
1 Kg

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