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Two rubber bands undergo an elastic collision. Ball 1 has a mass of 10 kg and an initial velocity of 5m/s in the positive x direction. Ball 2 has a mass of 10 kg and is stationary. What is the final velocity of the two balls V1f and V2f?
a -14 charge is placed on the x-axis at the origin. two 14 charges are placed on the y-axis one at y 0.2 m and one at
A concave mirror has a radius of curvature of 34.0 cm. A ladybug 7.50 mm tall is located 22.0 cm from this mirror along the principal axis.
A 1000- kg car collides with a 1300- kg car that was initially at rest at the origin of an x-y coordinate system. What was the initial speed of the lighter car
A flywheel in a motor is spinning at 580 {rm rpm} when a power failure suddenly occurs. The flywheel has mass 40 {rm kg} and diameter 75 {rm cm}.
What current must be in the solenoid so that the solenoid field just cancels Earth's 4.2 × 10-5-T magnetic field (used occasionally by the pigeons to determine the direction they travel)?
When starting a foot race, a 70.0-kg sprinter exerts an average force of 650 N backward on the ground for 0.800 s. What is his final speed
A basketball player makes a jump shot. The 0.520-kg ball is released at a height of 1.90 m above the floor with a speed of 7.13 m/s, What is the work done on the ball by air resistance, a nonconservative force
two blocks are connected over a pulley. The mass of block A is 7.9 kg and the coefficient of kinetic friction between A and the incline is 0.24. What is the mass of block B
In our electrostatics lab, we charge a metal sphere to 1000 V. What is the electric potential due to the charged sphere at a point 1.00 cm from its surface
q1. dennis driving his 600 kg car makes a 90 degree turn. his speed before the turn is 15.0 ms and after the turn are
An object undergoing parabolic motion travels
A current of 18.0 mA is maintained in a single circular loop of 2.20 m circumference. A magnetic field of 0.690 T is directed parallel to the plane of the loop. Calculate the magnetic moment of the loop.
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