A Fidget spinner rotates at 4000 rpm. Its diameter is 6.0 cm. a) Draw a diagram to model the problem.
b) Draw the FBD of a point on the edge of the fidget spinner
c) Calculate the speed of that point
d) Determine the magnitude to the acceleration at the edge of a fidget spinner.

Emagnitude of the electrical force acting between a +2.4 ×  10–8  c charge and a +1.8 ×  10–6  c charge that are separated by 0.008 m is    n, rounded to the tenths place.

Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3

If 130 j of energy were added to 1 kg of each of the samples listed in the answer choices, which would experience the greatest temperature increase