When 200 joules of work is done on a system by an external force of 15 newtons in 20. seconds, the total energy of that system increases by (1) 1.5 × 102 J (2) 3.0 × 102 J (3) 2.0 × 102 J (4) 2.3 × 103 J W = ΔK

when the use of electricity burdens the fuse and miniarure circuit beakers and there is a possibility of a fuse then they automatically cut off the electricity supply to your homes and after you fix the problem u jzt switch it on and it continues the supply of electricity to ur homes

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

less than one you can't create energy