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2 years ago

PLEASE HELP i need to do this test or i can't play ROBLOX anymore cries in ewf

Mathematics

2 answers:

Alisiya [41]2 years ago

7 0

Answer: j=t^2+5

Step-by-step explanation:

Svetlanka [38]2 years ago

5 0

Answer:

This is Confusing my friend...j=1. Hope I helped

Step-by-step explanation:

Rewrite the equation

Cancel out the common factor

Numerators MUST be equal sinse the expression on each side of the equation has the same denominator

Divide each term by 2 and then you have to simplify it :)

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A spring with a spring constant k of 100 pounds per foot is loaded with 1-pound weight and brought to equilibrium. It is then st

shutvik [7]

Answer:

Equation of movement y(t)

$y(t)=sin(10t-\pi/2)$

Amplitude: 1 inch

Period: 0.628 seconds

Step-by-step explanation:

If there is no friction, the amplitude will be the length it was streched from the equilibrium. In this case, this value is 1 inch

$A=1\,inch$

The period depends on the mass and the spring constant.

The formula for the period is:

$T=\frac{1}{f} =\frac{2/pi}{\omega} =2\pi\sqrt{\frac{m}{k}}=2\pi\sqrt{\frac{1}{100}}=2\pi*0.1=0.628\, s$

The model y(t) for the movement of the mass-spring system is

$y(t)=A\cdot sin(\omega t +\phi)\\\\A=1\\\\\omega=\sqrt{k/m} =\sqrt{100/1}=10\\\\y(0)=Asin(\phi)=-A\\\\ \phi=arcsin(-1)=-1.571=-\pi/2\\\\\\y(t)=sin(10t-\pi/2)$

8 0

3 years ago

Find out what make 30 with only the number 1,3,5,7,9,11,13,15

Mrrafil [7]

Answer:

Step-by-step explanation:

7 + 3 + 5 + 15 = 30

6 0

3 years ago

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Shop Rite ordered 336 cases of Oreos with 42 packages in each case. What is the total number of Oreo packages that Shop Rite ord

Makovka662 [10]

Answer:

14112

Step-by-step explanation:

USE A CALCULATOR

4 0

3 years ago

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Need help with this please

OLga [1]

Answer:

k= -2

Step-by-step explanation:

you are dividing the x by -2 each time

3 0

3 years ago

Kyle wants to compare 0.25 to 1/2 using fractions. Which fraction can he use for 0.25? A) 14 B) 25 C) 34 D) 45

Andreas93 [3]

Answer:

1/4

Step-by-step explanation:

0.25 is 1/4 of a whole use quarters for example

8 0

2 years ago

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PLEASE HELP i need to do this test or i can't play ROBLOX anymore *cries in ewf*

PLEASE HELP i need to do this test or i can't play ROBLOX anymore cries in ewf