A two-point system consists of two masses, m & 2m, separated by a distance d. If the mass m is replaced by a mass 3m and is kept at a distance d/2, what are the ratios of the gravitational potential energy of the two systems

There are weak or strong attractive forces between atoms of liquids with a high viscosity

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

How many times did thomas edison mess up the light bulb