A filament bulb labelled 240V, 40W. Calculate the heat energy produced in one second, if the efficiency of the bulb is 80%.

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.

Which best represents the law of conservation of mass ?

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