In a rutherford scattering experiment a target nucleus has a diameter of 1.34×10-14 m. the incoming α particle has a mass of 6.64×10-27 kg. what is the kinetic energy of an α particle that has a de broglie wavelength equal to the diameter of the target nucleus? ignore relativistic effects.

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

What object a collides with object b and bounces back its final momentum is?

The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g