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1. Physics Energy Problem?

... be the mechanical energy. m be the mass, g be the acceleration due to gravity, v be the upward speed, h be the height. M = K + P and is constant. (a) K = mv^2 / 2 = 0.300 * 10^2 / 2 = 15...

1 Answers · Science & Mathematics · 19/12/2009

2. linear algebra help please(URGENT!)?

...and since: k = a <=> a = k m = a+b <=> b = m - k we have that span{u , v} is a subset of span {x, v} and vice versa. Therefore span {x , v...

2 Answers · Science & Mathematics · 04/01/2013

3. Help Differential equations word problem?

...39;s second law, we can write: M*a = -k*v - M*g where M is the mass of the...dt = -(k/M)*v - g dv/dt = -(k/M)*(v + g*M/k) This is a separable equation: dv/(v + g...

1 Answers · Science & Mathematics · 18/02/2011

4. A 1.86 kg object on a frictionless horizontal?

...ω = √(k/m) and the equation of the motion is y = - Acos(√(k/m)*t) v = A*√(k/m)*sin(√(k/m)*t) a = A*(k/m)*cos(√(k/m)*t) and F...

2 Answers · Science & Mathematics · 20/09/2011

5. How can we prove this theorem about uniformly bounded sequences of functions?

...the sequence of functions (f_n) is uniformly bounded by k in V. So, any Mk satisfies in V the condition required by the theorem. ...

2 Answers · Science & Mathematics · 17/12/2009

6. Spring Problem; Really Hard?

.../x = 7.10/0.03 = 237 N/m b) T = 2π√(m/k) = 2π√(0.8/237) = 0.365 s f = 1/T = 1/0.365...237(0.05)^2]/2 = 0.296 J d) A = 0.05 m e) v = ωA = 17.2(0.05) = 0.860 m/s a = (kA...

1 Answers · Science & Mathematics · 30/11/2007

see the Pearson's chi square test

1 Answers · Science & Mathematics · 16/03/2010

8. Physics question: In an outdoor market, a bunch of bananas is set into oscillatory motion with an?

...a = -A ω² sin(ωt + φ) = - ω² x A = 20 cm = 0.2 m k = 16 N/m v_max = 40 cm/s = 0.4 m/s According to Hooke's law: F...

1 Answers · Science & Mathematics · 18/07/2009

9. Assume that the earth is a uniform sphere and that its path around the sun is circular.?

...5 rad/s ω^2=5.28x10^-9 rad^2/s^2 M=5.97x10^24 kg R=6.37x10^6 m K=5.12x10^29 J b) mv^2/R=mMG/R^2 v^2=MG/R K=1/2mv^2 K=1/2mMG/R ...

2 Answers · Science & Mathematics · 19/04/2013

10. Couple Math/Physics Problems I need help with..Bungee Jumping?

...period of the spring, which is still T = 2π√(m/k) It does move the equilibrium position off of x...) + mg/k Taking the derivative of the position, v(t) = -A√(k/m) cos(√(k/m) t + B) ...

1 Answers · Science & Mathematics · 11/12/2012