Recent content by maanneaguila

ok., thanks a lot! :)))

steam and ice?

i got it! :))) first, steam to water ; Q=m*Lv : Q= 160(540) Q=86,400 (dunno the unit) lol. :)))second, ice to water ; Q=m*Lf : Q=1000(79.6) Q= 79,600 the excess heat is; (Qsteam) 86,400 - (Qice) 79,600 = 8, 600then.., the initial temp of both subs.; Qloss(steam) + Qgain (ice) = 0 m*C...

still i didn't get it., :((( it's really hard to understand.., i really don't know what formula will i use.., i tried this formula, but still i get the wrong answer., don't know if what's the right value to substitute.. i don't know where to get or which one will i derive to get the right...

where will i place the specific heat of water? since no masses are given for water. what should be the equation? :(((

"how much heat is generated" you mean the specific heat of a substance?

the ice will melt and the steam will evaporate?

Homework Statement 160g of steam at 100°C is added to 1000 g of ice at 0°C. What is the equilibrium temperature of the mixture? Assume the container has a negligible heat capacity. Homework Equations Qloss+Qgain=0;[m*c(delta T)] + [m*c(delta T)] = 0 The Attempt at a Solution i...

equilibrium temperature anyone who can help? this is the problem. i have the final answer which is 19.3 degree Celsius but i don't know how to get it., i used the formula of Qloss+Qgain=0;[m*c(delta T)] + [m*c(delta T)] = 0. but my final answer is not 19.3.., can you please help me? what...

anyone who can show me the solution on how to get the answer? thanks a lot guys! :D i have here an answer and am not sure if it's correct; for problem a, 2500watts., and for problem b 490watts.., am i correct? :)

hehe., thanks anyway.., :D

Homework Statement 1. A 50-N force is the only force on a 2-kg object that starts from rest. when the force has been acting for 2s the rate at which it is doing work is: 2. A 50-N force is the only force a 2-kg crate that starts from rest. At the instant the object has gone 2m the rate...

thanks for the idea., :D i have here also, but not so sure if it's correct.., the force that cause the horse to move forward is the force exerted by the hoofs/hooves and legs of the horse on the ground., it should be greater than the frictional force on the ground., :)

Homework Statement A horse is pulling a cart (a) what is the force that causes the horse to move forward? (b) what is the force that causes the cart to move? Homework Equations i have no idea. The Attempt at a Solution i have no idea.