Estimate the kinetic energy of the neptune with respect to the sun as the sum of the terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. [assume the neptune is a uniform sphere with mass = 1.0×1026 kg , radius = 2.5×1010 m , rotation period 16.1 h , orbital period 6.01×104 d and is 4.6×109 km from the sun.]

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

The necleus of an atom is made up of what subatomic particles?

Asolid, uniform disk of radius 0.250 m and mass 59.5 kg rolls down a ramp of length 4.40 m that makes an angle of 16.0° with the horizontal. the disk starts from rest from the top of the ramp. (a) find the speed of the disk's center of mass when it reaches the bottom of the ramp. (b) find the angular speed of the disk at the bottom of the ramp.