# Yahoo Web Search

related to: SPE

1. ### A 68-kg fisherman in a 126-kg boat throws a package of mass m = 15 kg horizontally toward the right with a spe ?

we are going to work this out by using momentum mass of fisherman = 126kg mass of package=15m speed of boat =0m/s speed of package= 4.6m/s momentum before = momentum after (126 x 0) ( 15 x 4.6) = (126v) ( 15 x 0) [ the package will eventually come to rest afterwards] 69= 126v 69/126= v v=0.55m/s...

2 Answers · Science & Mathematics · 02/05/2017

2. ### A ball falls out of an airplane window. the airplane is 500m above the ground. find the kinetic energy and spe ?

From your problem statement it sounds like you're only interested in the vertical dimension, and you also need to neglect the effect of aerodynamic drag. With these assumptions, right before the ball hits the ground it has converted...

2 Answers · Science & Mathematics · 15/07/2012

3. ### An astronaut traveling forward at 0.87c holds a meterstick in spear -like fashion. The astronaut sees the spe ?

1 meter. .

2 Answers · Science & Mathematics · 18/12/2010

4. ### 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

5. ### 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

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 car traveling east at 45.6 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his spe ?

When you driving at 45,6 m/s and you reduces your speed uniformly to 25.0 m/s you drive on the average 35.3 m/s In 4.20 s that is 148.26 m. So can also use the formal equations: a = (v1 - v0) / t. = (45.6 - 35.3)/4.2 and s = v0.t + (1/2).a.t^2 with s (at t=0) = 0...

1 Answers · Science & Mathematics · 06/10/2010

8. ### A rifle weighs 58.0N and its barrel is 0.850m long. It shoots a 20.0g bullet, which leaves the barrel at a spe ?

average v = (0 + 340) / 2 = 170 m/s Time in the barrel t = 0.85 / average v = 0.85 / 170 = 0.005 a = dv / dt = 340 / 0.005 = 68000 m/s2 force exerted on the rifle by the bullet F = m * a = 20 10^-3 * 68 10^3 = 1360 N Goodbye

1 Answers · Science & Mathematics · 13/02/2013

9. ### the temperature a metal increases by 3k when 1635J is added to a 2kg quantity of the metal what is the the spe ?

Q = m * Cp * dT Heat = mass * Specific Heat * Temperature Change 1635J = 2000g * Cp * 3K Cp = 1635/(2000 * 3) 0.2725 J/(g*K) or 272.5 J/(kg*K)

1 Answers · Science & Mathematics · 28/09/2008

10. ### an olympic runner leaps over a hurdle the acceleration of gravity is 9.81 if the runners initial verticle spe ?

height=initial velocity times time --1/2gravity times time squared h=2t-4.905t^2 you need to find the time when the velocity is zero 0=v-at t=.204 seconds plug it back in to the first equation h=2(.204)-4.905(.204)^2 h=.204 meters

1 Answers · Science & Mathematics · 04/10/2011