Recent content by shann0nsHERE

Can one swim in petrol? What would happen? Would one float?sink?

Thank you so so so much!

When a 35 gram piece of some metal at 100°C is placed in water, it loses 775 calories of heat while cooling to 30°C. Calculate the specific heat capacity of this metal. Q = mc(DELTA)T T = 70 degrees C m = 35 g Q = 775 cal ?? When i plugged it in i got 0.34 but the program said it...

Yes, I am in the ib program but i was absent for that lesson.. ha thanks for the heads up, i just started this Andd thank you both for the help

This one too pleeasee A thread holds a 1.5-kg and a 4.50-kg cart together. After the thread is burned, a compressed spring pushes the carts apart, giving the 1.5 kg cart a speed of 27 cm/s to the left. What is the velocity of the 4.5-kg cart? I would be so grateful if someone could...

A 35.0-g bullet strikes a 4.7-kg stationary piece of lumber and embeds itself in the wood. The piece of lumber and bullet fly off together at 8.0 m/s. What was the original speed of the bullet? I don't know where to begin...