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1. ### A 83-kg fisherman in a 136-kg boat throws a package of mass m = 15 kg horizontally toward the right with a spe?

AN 83.....? (83 + 136) = 219kg. (15 x 4.4)/219 = 0.3m/sec., left.

2 Answers · Science & Mathematics · 05/10/2012

2. ### A gas containing both hydrogen molecules and helium atoms has a temperature of 300 K. How does the average spe?

Helium is monoatomic. While Hydrogen is diatomic. Therefore, Since the molecular weight Helium is 2 and a diatomic Hydrogen is 2. I believe the speeds should be exactly the same. EDIT...

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

3. ### A 10-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a spe?

(a) translational kinetic energy = (1/2)*m*(v^2) =(1/2)*10*(10^2) =500J (b) rotational kinetic energy =(1/2)*I*(w^2) w-angular velocity(omega), I-moment of inertia =(1/2)*(2/5*m*r^2)(w^2...

2 Answers · Science & Mathematics · 24/12/2012

4. ### Tarzan swings on a 30.0 m long vine initially inclined at an angle of 32.0° with the vertical. What is his spe

960mph. lol jk

2 Answers · Science & Mathematics · 10/08/2008

5. ### A motorist travels from A to B at a speed of 40 km/hr and returns back at a speed of 60 km/hr. His average spe?

50km/hr (40+60) divide by 2 = average speed

2 Answers · Science & Mathematics · 31/10/2012

6. ### A friend of yours is loudly singing a single note at 400 while racing toward you at 24.5 on a day when the spe?

Don't forget to supply what units you are working with! (342 + 24.5) = apparent V of 366.5m/sec. a) (366.5/342) x 400 = 428.655Hz. b) 428.655Hz.

2 Answers · Science & Mathematics · 30/01/2013

7. ### (a) What is the momentum of a garbage truck that is 1.20×104 kg and is moving at 10.0 m/s ? (b) At what spe?

(a) p = mv = 1.2e5 kg·m/s (b) v = p / m = 1.2e5kg·m/s / 8kg = 1.5e4 m/s = 15 km/s

1 Answers · Science & Mathematics · 24/06/2016

8. ### A 6.0-kg block is pushed 8.0 m up a rough 37º inclined plane by a horizontal force of 75 N. If the initial spe?

a) 0.5*m*v^2 = 12 J b) F*d = 600 J c) F*d = -200J d) F*d = m*g*(8sin(37)) = -283.38 J e) F*d = 0 J f) W_net = 600 - 200 - 283.38 = 116.62 J

1 Answers · Science & Mathematics · 29/11/2009

9. ### A 3.0 kg block slides along a horizontal surface with a coefficient of friction µk = 0.30. The block has a spe?

Your picture did not open. I am trying to answer your questions as far as possible with the help of your word problem only. 1) Use energy conservation here. Net change in kinetic energy = 0.5 mv^2 [as final speed = 0] = 4.86 J This...

1 Answers · Science & Mathematics · 19/01/2014

10. ### How much work must you do to push a 10 block of steel across a steel table at a steady spe?

that... doesn't seem to be a valid question. First, there's no units, so it's impossible to answer it for that reason alone. Second, if you want units of work, what you need is force and distance, not speed. W = FD And power is Work per unit time so...

1 Answers · Science & Mathematics · 15/01/2009