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A bullet weighing 50 grams and traveling at 200 m/s is shot into a stationary block of wood weighing 4 kg where it lodges. Determine how much each of the following changes from before the bullet strike to after the bullet stops for the system defined by the exterior surfaces of the block of wood:
a) Potential energy
b) Kinetic energy
c) Internal energy
When 165 V is applied across a wire that is 14 m long and has a 0.31 mm radius, Find the resistivity of the wire
two point charges are on the y-axis. a 6.0 microc charge is located at y 1.35 cm and a -2.22 microc charge is located
Two identical 19.1?kg spheres of radius 12.7cm are 35.7cm apart (center-to-center distance). If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact
the beam shown below has a rectangular cross-section with a width dimension perpendicular to the paper of 0.375 inches
Converting sunlight to electricity with solar cells has an efficiency of 15%. What is the theoretical maximum efficiency
Keilah, in reference frame S, measures two events to be simultaneous. Event A occurs at the point (37.0 m, 0, 0) at the instant 9:00:00 Universal time on January 15, 2010. What time interval elapsed between the events
Imagine a "free" electron and a "free" proton held midway between the plates of a charged equivalent plate capacitor. When released, how do their accelerations and directions travel compare.
a scaffold of mass 56 kg and length 5.5 m is supported in a horizontal position by a vertical cable at each end. a
a container of ideal gas for which the thermal energy is given by eth 2.6 n r t is initially at pressure pi 1.1 x
Suppose you wish to fabricate a uniform wire from 1.80 g of copper. The wire is to have a resistance of R = 0.380 ? and all the copper is to be used.
A boat has a mass of 5220 kg. Its engines generate a drive force of 4480 N due west, What is the boat's acceleration
One mole of helium atoms has a mass of 4 grams. If a helium atom in a balloon has a kinetic energy of 1.224e-21 J, what is the speed of the helium atom
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