Recent content by amaryllia

Homework Statement A glass windowpane in a home is 0.62 cm thick and has dimensions of 1.0 m x 2.0 m. On a certain day, the indoor temperature is 25˚C and the outdoor temperature is 0˚C. a) What is the rate at which energy is transferred by heat through the glass? b) How much energy is lost...

Homework Statement A certain light truck can go around a flat curve having a radius of 150 m with a maximum speed of 32.0 m/s. With what maximum speed can it go around a curve having a radius of 75.0 m? Homework Equations Fc = m(v^2/r) Fc = net centripetal force m = mass v = tangenital speed r...

Ah you are so right! Thank you so much for setting me straight on this. :)

This is is the same answer I get for the initial velocity of the block when I use the KE + PE (after collision) = KE + PE (on ground) equation from my first attempt at a solution. This equation ends up being the same as the the equation I end up with after solving this equation from my...

I get the horizontal velocity by first finding the time i takes for the block to fall 1 m, in (delta)y = 1/2ayt^2 and get .452 seconds. Next I find the velocity in the x direction by using (delta)x = v(initial)t and get 4.24 m/s. I then use Vy(final) = vy(initial) + ayt and get vy = -4.43 m/s...

I thought that the final velocity for the conservation of energy equation would be 0 m/s because the block had come to rest? There was another example problem in my book with the same situation except the block was on a pendulum and swung upwards to a certain height, and they set the vf there...

Homework Statement An 8.00 g bullet is fired into a 250 g block that is initially at rest at the edge of a table of height 1 m. The bullet remains in the block, and after the impact the block lands 2 m from the bottom of the table. Determine the initial speed of the bullet. Homework...

Homework Statement A projectile is launched with a speed of 40 m/s at an angle of 60 above the horizontal. Use conservation of energy to find the maximum height reached by the projectile during its flight. Homework Equations KEi + PEi = KEf + PEf (Initial kinetic energy + Initial potential...