When an object of mass m moves with a velocity v that is small compared to the velocity of light, c , its energy is given approximately by E ≈ 1 2 m v 2 . If v is comparable in size to c , then the energy must be computed by the exact formula E = m c 2 ( 1 1 − v 2 / c 2 − 1 ) . (a) Plot a graph of both functions for E against v for 0 ≤ v ≤ 5⋅ 10 8 and 0 ≤ E ≤ 5⋅ 10 17 . Take m = 1 kg and c = 3⋅ 10 8 m/sec. Explain how you can predict from the exact formula the position of the vertical asymptote. (b) What do the graphs tell you about the approximation? For what values of v does the first formula give a good approximation to E ?
When an object of mass m moves with a velocity v that is small compared to the velocity of light, c , its energy is given approximately by E ≈ 1 2 m v 2 . If v is comparable in size to c , then the energy must be computed by the exact formula E = m c 2 ( 1 1 − v 2 / c 2 − 1 ) . (a) Plot a graph of both functions for E against v for 0 ≤ v ≤ 5⋅ 10 8 and 0 ≤ E ≤ 5⋅ 10 17 . Take m = 1 kg and c = 3⋅ 10 8 m/sec. Explain how you can predict from the exact formula the position of the vertical asymptote. (b) What do the graphs tell you about the approximation? For what values of v does the first formula give a good approximation to E ?
When an object of mass m moves with a velocity v that is small compared to the velocity of light, c, its energy is given approximately by
E
≈
1
2
m
v
2
.
If v is comparable in size to c, then the energy must be computed by the exact formula
E
=
m
c
2
(
1
1
−
v
2
/
c
2
−
1
)
.
(a) Plot a graph of both functions for E against v for 0 ≤ v ≤ 5⋅ 108 and 0 ≤ E ≤ 5⋅ 1017. Take m = 1 kg and c = 3⋅ 108 m/sec. Explain how you can predict from the exact formula the position of the vertical asymptote.
(b) What do the graphs tell you about the approximation? For what values of v does the first formula give a good approximation to E?
Find a plane containing the point (3, -3, 1) and the line of intersection of the planes 2x + 3y - 3z = 14
and -3x - y + z = −21.
The equation of the plane is:
Determine whether the lines
L₁ : F(t) = (−2, 3, −1)t + (0,2,-3) and
L2 : ƒ(s) = (2, −3, 1)s + (−10, 17, -8)
intersect. If they do, find the point of intersection.
● They intersect at the point
They are skew lines
They are parallel or equal
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