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1. Trigonometry Question?

The cool thing about radians is it directly matches to the distance along a unit circle, so just multiply the *radius* times the angular velocity. v = rω v = 6.15 cm * 5.2 rad/sec v = 31.98 cm /sec Answer: ~32 cm /sec

3 Answers · Science & Mathematics · 26/10/2020

2. I need help with 2 questions?

... is 9.8 m/s² due to gravity. 2. A wheel of radius 50 cm accelerates uniformly from a frequency of 4 Hz to 6 Hz during...

1 Answers · Science & Mathematics · 26/10/2020

3. A block of mass 2.5 kg is attached to a horizontal spring that has a force constant of 1.40 103 N/m?

Given: m = 2.5 kg k = 1.40e3 N/m xi = -5.5 cm = -0.055 m (a) work W = ½k(xi)² = ½...

1 Answers · Science & Mathematics · 21/10/2020

4. Algebra Homework Help Please?

...6.4             ⇒  v (x) has a max at r = ⅔ = 0.67 cm /s ......................ANS See graph below: max occurs at (0.67, 0...

3 Answers · Science & Mathematics · 26/10/2020

5. can someone please help with this physics problem?

...f) S' = (-0.40)(0.80) / (0.80 - (-0.40)) S' = -0.27 m or 27 cm from the lens and on the same side as the object m = -S'/S = -(-0.27...

1 Answers · Science & Mathematics · 24/10/2020

6. How do I convert kg/yr to volume/year?

...55 m3/yr  is the first step to m^3/year 1 m^3 is 100x100x100 cm ^3 = 1,000,000 cm ^3 1 year approximates as 365.25 days  or 8,765...

3 Answers · Science & Mathematics · 20/10/2020

7. arithmetic progression question?

Let the 8 sides in arithmetic progression be:- a, a +d, a + 2d, .....a + 7d, so that the longest side, a + 7d = 4a Then the perimeter is the sum P = 8a + 28d = 280 Substituting 28d = 4(7d) = 12a we get 20a = 280 and longest side, 4a = 56 Although not...

2 Answers · Science & Mathematics · 23/10/2020

8. Ovulation question?

How do you know you already ovulated.   Could have you misread earlier symptoms and ovulation is actually happening now? Slight changes in hormones can be a tricky thing to determine and it could be as simple as a slight hormone...

2 Answers · Pregnancy & Parenting · 25/10/2020

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