Suppose there was a star with a parallax angle of 1 arcsecond. How far away would it be?

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

If a simple machine reduces the strength of a force, what must be increased?

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? your