A 45-kg merry-go-round worker stands on the ride's platform 6.3 m from the center, as shown in Figure 11.
If her speed her) as she goes around the circle is
4.1 m/s, who wie force of friction (Ff) necessary to
keep her from falling off the platform?

Positrons are spontaneously emitted from the nuclei of

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?