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1) a 95-kg car moving north at 20.1m/s collides with a 1865-kgcar moving west at 13.4m/s. the two cars are stuck together. inwhat direction and at what speed do they move after thecollision?
2) a 1383-kg car moving south at 11.2m/s is struck by a 1732-kgcar moving east at 31.3m/s. the cars are stuck together. how fast and in what direction do they move immediately after thecollision?
A 2.0 solid sphere (radius = 0.20 ) is released from rest at the top of a ramp and allowed to roll without slipping. The ramp is 0.50 high and 6.0 long. A. When the sphere reaches the bottom of the ramp, what is its total kinetic energy? B. When the ..
A proton is passing the origin. The magnetic field at the (x,y,z) position ( 2mm , 0 mm, 0 mm) is1.4×10?13?^T. What is the speed of the proton
A block of mass m = 0.2 kg, in simple harmonic motion, has an amplitude of 3.5 cm and a maximum speed of 70 cm/s. What is the potential energy of the system when the block is 2 cm away from the equilibrium position?
A 2.0-kilogram object moving with a velocity of 5.0 m/s in thepositive x direction strikes and sticks to a 3.0-kilogram objectmoving with a speed of 2.0 m/s in the same direction. How much kinetic energy is lost in this collision?
A 12.0-V battery remains connected to a parallel plate capacitor with a plate area of 0.284m2 and a plate separation of 4.14mm, What is the store energy in the capacitor
a gas is confined to a cylinder with a movable piston. a small weight is placed on the piston after which the system
Two objects (39.0 and 23.0 kg) are connected by a massless string that passes over a massless, frictionless pulley, find the acceleration of the objects
A uniform disk is constrained to rotate about an axis passing through its center and perpendicular to the plane of the disk. find the average angular acceleration that the disk experiences
Water is moving with a speed of 23.0 m/s through a pipe with a cross-sectional area of 4.0 cm2. What is the speed of flow at the lower level
Use the force or spring constant from part (a), compute the potential energy stored in the spring when the spring is displaced 2.40 cm
two crewmen pull a raft through a lock . one crewman pulls with a force of 130 at an angle of 34 relative to the
A mass of 150 g of hot coffee at 90.0 oC is poured into an insulated cup containing 220 g of ice initially at 0.0 oC. how much ice will remain
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