Recent content by Madeline1844

MODERATOR NOTE: MISPLACED HOMEWORK, SO NO TEMPLATE When filling up the tub for a bath, only the hot water tap was turned on. After realizing the mistake after a minute with half the tub at 60 C, how much cold water (as fraction of the whole tub) at 9 C must be added such that the final...

I tried using W=Eg=mgh. (0.1)(9.8)(0.65) that would give me 0.637 as the p.g.e/work so then i could put it into W=Fd and solve for f 0.637=F(0.65)...

so (.1)(9.8) (.65) should give me energy/work which i can then rearrange to find force?

Homework Statement An elastic powered slingshot can launch a 100 g marble into the air 18 m by using elastics. a) W hat is the average force exerted by the elastic if the elastics stretches 65.0 cm before it launches the marble? b) How fast is the marble going straight up when it is 10 m...