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A 0.037 kg aluminum bullet traveling at 478 m/s strikes an armor plate and comes to a stop. If all its energy is converted to heat that is absorbed by the bullet, what is the bullet's temperature change in degrees Celsius? (This is a multi-step problem.)
A 12 turn generator coil with area 0.160 m2 rotates in a 1.40 T magnetic field. Find at what frequency should the coil rotate to produce a peak emf of 145
A cannonball is shot (from ground level) with an initial horizontal velocity of 40 m/s and an initial vertical velocity of 21 m/s, What is the initial angle of the cannonball with respect to the ground
John and Mary are skating at an ice rink. John skates at a constant speed of 6.8 m/s, with respect to the ice surface, directly south. What are the magnitude and direction of Mary's velocity
a uniform electric field of magnitude 445 nc pointing in the positive x-direction acts on an electron which is
Two identical point charges (q = +6.70 10-6 C) are fixed at diagonally opposite corners of a square with sides of length 0.475 m. Determine the speed of the test charge when it reaches the center of the square
Sound is passing perpendicularly through an open window whose dimensions are 1.1 m x 0.75 m. How much sound energy comes through the window in one hour
determine the force P needed to support the 100-lb weight. Each pulley has a weight of 10 lb. Also, what are the cord reactions at A and B
When one marble hit the end of the line of marbles, how many shot off the other end? Describe the momentum of the set of marbles before and after the collision
two kg of ammonia are compressed adiabatically from a saturated vapor state at 20 c. the dead state is p0 1 bar t0
an elevator is moving upward at a constant speed of 2.50 ms. a bolt in the elevator ceiling 3.00 m above the elevator
Water flows at 0.950 m/s from a hot water heater, through a 450-kPa pressure regulator. What's the flow speed in this pipe
Two students in a physics laboratory each have a concave mirror with the same radius of curvature, 42.0 cm. Each student places an object in front of a mirror. What is the distance of the farther object
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