Scott travels north 8 m and then goes west 3 m before coming straight back south 4 m. What is his displacement?

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?