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Question: If a particle of mass 5.4 kg is moving east at 10 m/s and a particle of mass 19 kg is moving west at 10 m/s, what is the velocity of the center of mass of the pair? answer in m/s west.
An airplane has a mass of 1.7x10^6kg and the air flows past the lower surface of the wings at 96 m/s. If the wings have a surface area of 1200m^2, how fast must the air flow over the upper surface of the wing if the plane is to stay in the air?
A charge of 18.0?C is held fixed at the origin. If a -6.50?C charge with a mass of 3.00g is released from rest at the position (0.925 m, 1.17 m), what is its speed when it is halfway to the origin
A 2.0-kg piece of marble at 100 degree C is dropped into 1.5 kg of water at 1.0 degree C, What is the specific heat of the marble
At what coordinate on the axis is the net electric field produced by particles equal to zero.
A single current carrying loop has a magnetic dipole moment of 10i - 20j + 15k Am2 and is in a region of space, Find the torque on the current loop
Two small metallic spheres, each of mass m = 0.212 g, are suspended as pendulums by light strings of length L as shown in the figure below. The spheres are given the same electric charge of 7.9 nC, and they come to equilibrium when each string is ..
A jet engine emits sound uniformly in all directions, radiating an acoustic power of 2.17 × 102 kW. Find the intensity of the sound
a proton with an initial speed of 800000 ms is brought to rest by an electric field.a what was the potential difference
A solid steel rod of length 120-cm and mass 450 grams, is rotated about its center with an angular acceleration 23 rad/s2. What is the moment of inertia of the rod, What is the net torque acting on the rod
Consider an RC circuit in which the capacitor is beingcharged by a battery connected in the circuit. what percentage of the final charge is present on the capacitor
At some instant and location the electric field associated with an electromagnetic wave in vacuum has the strength 86.9 V/m. Find the magnetic field strength
Only two horizontal forces act on a 6.3 kg body. One force is 6.0 N, acting due east, and the other is 8.3 N, What is the magnitude of the body's acceleration?
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