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A car of mass 3 x 10^3 kg moving with a velocity of 20 m.s-1 is passing a truck of mass 7.5 x 10^3 traveling at a speed of 16 m.s-1. what is the velocity of the center of mass of the system?
A spaceship of mass 2.20×106 is cruising at a speed of 5.40×106 when the antimatter reactor fails, blowing the ship into three pieces. One section, having a mass of 4.90×105 , is blown straight backward with a speed of 2.40×106 . A second piece, with..
An 8.00-cm-diameter, 330g sphere is released from rest at the top of a 2.00-m-long, 17.0? incline. find the sphere's angular velocity at the bottom of the incline
The current in a coil drops from 3.9 A to 2.7 A in 0.52 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
An artificial satellite circling the Earth completes each orbit in115minutes. (The radius of the Earth is6.38106m. What is the value ofgat the location of this satellite
A 7.7 uf capacitor and a 1250 ohm resistor are connected in series to a generator operating at 50 Hz and producing an rms voltage of 208 V
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
A solenoid has a radius of 1.87 cm and 1080 turns per meter. Over a certain time interval the current varies with time according to the expression I = 2.91e0.2t, Calculate the electric field 4.54 cm from the axis of the solenoid
question1a 1200-kg automobile travels at a speed of 12 ms.nbsp a what is it the kinetic energy? b what is work that
A spring is initially compressed by 17.5 cm. If it takes 7.166 J of work to compress the spring an additional 3.5 cm, what is the spring constant of the spring
The isotope 226 Ra Alpha decays. its measured atomic mass is 226.02541 amu, the daughter nucleus has a mass of 222.01758 amu and helium has atomic mass 4.0026 amu. calculate the kinetic energy of the alpha particle
A weather vane at first at rest has a moment of inertia of 0.111 kg • m2 about its axis of rotation. A 53.0 g piece of clay is thrown at the vane and sticks to it at a point 19.5 cm from the axis. The initial velocity of the clay is 20.0 m/s, directe..
An electron has an initial velocity of 3.50 106 m/s in the x direction. It enters a uniform electric field = (400 N/C) , which is in the y direction. (a) Find the acceleration of the electron.
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