jennyara

14 Questions
4 Answers

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884

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Consider the system mass-spring given in problem 1 and express the equation of motion using the “Reduced Form”.

x(t) = 12 cos (5t) + 4 sin (5t)
For which value of t the “Reduced Form” is equal to zero (x = 0) in the interval 0 < wt - phi < pi?
Pi = 3.14
read more ..

jennyara Apr 27, 2016

0

728

1

+45

The oscillations produced by a block of mass m attached to a spring of elastic constant k immersed in a container with a heavy oil inside is given by the

y(t) = 2 (e^-3t) cos (9t) + 4 (e^-3t) sin (9t)
Determine:
a) The amplitude of the oscillations
b) The phase constant
c) The damper factor <#> d) The pseudo frequency <#>

jennyara Apr 27, 2016

0

662

2

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Solve the following trigonometric equation in the interval 0 < x < 2pi:

sin^2(x) - 1 = 0
What is the sum (in degrees) of the angles x obtained?

jennyara Apr 27, 2016

0

923

4

+45

Solve the following trigonometric equation in the interval 0 < x < 2pi:

sin^2(x) - cos^2(x) = - cos(x)
What is the sum (in degrees) of the angles x obtained?

jennyara Apr 27, 2016

0

798

3

+45

Consider the system mass-spring given in problem 1 and express the equation of motion using the “Reduced Form”.

x(t) = 12 cos (5t) + 4 sin (5t)
For which value of t the “Reduced Form” is equal to zero (x = 0) in the interval 0 < wt - phi < pi?

ElectricPavlov ●●●

jennyara Apr 26, 2016

0

705

1

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What is the period of the oscillations?

x(t) = 12 cos (5t) + 4 sin (5t)

jennyara Apr 26, 2016

0

756

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FIND THE PHASE CONSTANT

x(t) = 12 cos (5t) + 4 sin (5t)

jennyara Apr 26, 2016

0

550

0

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what is the phase constant

x(t) = 12 cos (5t) + 4 sin (5t)

jennyara Apr 26, 2016

0

673

0

+45

What is the phase constant?

x(t) = 12 cos (5t) + 4 sin (5t)

jennyara Apr 26, 2016

0

591

1

+45

The oscillations produced by a block of mass m attached to a spring of elastic constant k is given by the following equation of motion:

x(t) = 12 cos (5t) + 4 sin (5t)
What is the position x of the block after 5 seconds?

jennyara Apr 26, 2016

0

779

3

+45

The oscillations produced by a block of mass m attached to a spring of elastic constant k is given by the following equation of motion:

x(t) = 12 cos (5t) + 4 sin (5t)
What is the acceleration of the block after 3 seconds?

jennyara Apr 24, 2016

+45

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thank you!

jennyaraApr 27, 2016

+45

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but doesnt it have to equal less than 360 since its saying that you have to solve it in the interval 0<x<2pi

jennyaraApr 27, 2016

+45

0

but doesnt it have to equal less than 360 since its saying that you have to solve it in the interval 0<x<2pi

jennyaraApr 27, 2016

+45

+5

can you explain how you got that?

jennyaraApr 27, 2016