2.A3 kg chunk of putty is thrown at 35 m/s at a 7 kg block on a frictionless surface originally at rest. How fast do the block and putty move after the putty has stuck to the block?"
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Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude f due to the other. with time, charge gradually leaks off of both spheres. when each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be

Will a heavier bowling ball hit pins better than a lighter bsll

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