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A putty of mass 0.06 kg is droppe at height h = 1 m above a horizontal rod. two 2 kg balls are attached to the ends of the thin rod, which has a mass of 1 kg and also is 1 m long. The rod can rotate about a horizontal axis.a) At what speed does teh putty hit the ball on the right end of the thin rod?b) consider the rod, the balls and the wad as one system, what is the system's initial angular momentum before the hit. L initial? the putty is considered a particlec)What is the sytem's angular momentum right after the hit, L initial.d) What is the system's total moment of inertia I final?e) What is the angular velocity of the rod right after the hit, omega final?f) What is the kinetic energy of the sytem , KE rod + KE balls + KE putty, right after the hit?g) IS KE larger or smaller than, or equal to the kinetic energy of the putty wad right before it hits the ball? Prove it.
Two resistors of resistance R are connected in parallel. The combination is connected in series to a resistor of resistance 2R. What is the resistance of this combination of resistors
Illustrate what is the magnitude of the net gravitational force on the mass at the origin due to the other two masses?
A solenoid 300 turns having a length of 25.0 cm and a diameter of 10.0 cm has a current of 0.290 A.
a horizontal force of 50 n is applied for 10 s on a box of mass 20kg placed on a friction-less horizontal table .
Two 0.80g spheres are charged equally and placed 2.0cm apart. When released, they begin to accelerate at 160m/s^2. What is the magnitude of the charge on each sphere?
A 22 gauge NiAg wire is 22.5 km long. The resistivity of the NiAg wire is 33.0*10^-8 Ohm*m. The cross sectional area of the wire is 3.22*10^-7. How much energy is dissipated in a day
A proton and an electron are fixed in space with a separation of 911 nm. Calculate the electric potential at the midpoint between the two particles, Find the potential and the magnitude of the force.
The mass m = 1.02 kg is sliding on a rough horizontal surface. A force F = 8.41 N is applied at an angle of 36.4 degrees. Compute the acceleration a (in m/s2) of the mass on the surface if the coefficient of kinetic friction is 0.112. Use g = 9.8 m/s..
A source has a half life of 30.2 years. It was created 19 years ago with an initial activity of 1 micro curie. Calculate the initial number of atoms in the sample
For no apparent reason, a poodle is running at a constant speed of 4.40 {rm m/s} in a circle with radius 3.0 {rm m}. Let vec v_1 be the velocity vector at time t_1, and let vec v_2 be the velocity vector at time t_2.
What is the propotion of the mass of these excess electrons to the mass of the penny.
The highest barrier that a projectile can clear is 14.6 m, when the projectile is launched at an angle of 17.0° above the horizontal. What is the projectile's launch speed
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