Hey guys, I've been spending a 3 hrs trying to figure this one out...
1) Why does adding sugar to rasberries make them juicy? to rephrase I mean why would the entire raspberry/sugar concoction become more juicer as
a whole (why will there end up being juice in the bowl?)
It has to do...
"Since speed is a constant, then there isn't a change in KE, so then work done has to be zero right?"
Work isn't zero for individual forces just like urban said. On a frictional surface conservative energy isn't conserved thus W(neoconservative)=change(mgh)+0 KE...The force is...
Hey ppl,
If you have a man pushing a box up a slope with a horizontal force at constant speed from distance a to b, can one assume the Work done by friction to be zero all the time since velocity is constant? or can one assume W(neoconservative)=change in U(gravitational PE) only, with...
an object launched vertically upward with an initial speed v. Neglect air resistance
a)At what height h above the ground does the projectile have a speed of 0.5v? Express your answer in terms of v and the magnitude of the acceleration of gravity g.
Using conservation of energy i found the...
On a frictionless horizontal air table, puck A (with mass 0.366 kg) is moving toward puck B (with mass 0.254 kg ), which is initially at rest. After the collision, puck A has velocity 0.119 m/s to the left, and puck B has velocity 0.655 m/s to the right.
a) What was the speed of puck A (Vai)...
yeah that helps thanks
i was looking at it as an inelastic collision
for the energy part i am using the equation
1/2 m1 v1(squared)i = 1/2 m1 v(squared)1f + 1/2 m2 v(squared)2f
question is looking for change in kinetic energy DURING collision
i calculated Final KE - Initial KE...
On a frictionless horizontal air table, puck A (with mass 0.366 kg) is moving toward puck B (with mass 0.254 kg ), which is initially at rest. After the collision, puck A has velocity 0.119 m/s to the left, and puck B has velocity 0.655 m/s to the right.
What was the speed of puck A...
A horizontal force of 12 N pushes a 0.5 Kg block against a vertical wall. The block is initially at rest, If static and kinetic coefficients are 0.6 and 0.8 respectively what is the friction force?
Basically the fbd has Force of 12 N across the x component(+) and the Normal force in the...
Mastering physics
Hey ppl, I am using mastering physics as well, with the book PHYSICS FOR SCIENTISTS AND ENGINEERS. I find the assignments don't help at all or prepare me in any way for the exams, so it becomes a waste of a lot of time that could have been spent doing questions that help...
Hey ppl, just a quick question..
You have a 10 g ping pong ball with a diameter of 3.5 cm...
a)The ball is shot straight up at twice its terminal speed. What is it’s
initial acceleration?
i know D=W at terminal speed but when u double it do you just assume D=4D and if you do how come...
Hey ppl, sorry I was just wondering if anyone knew how to do the question i posted earlier(TWO BLOCKS AND TWO PULLEYS), as I have to submit it and cannot figure it out still!?
Thanks...