heat

When heat is added to boiling water, its temperature? And Why!

Temperature/heat

Place a kilogram block of iron at 40 degrees C into a kilogram of water at 20 degrees C what will the final temperature of the two become, and why?

Relative Physics

If U235 captues a neutron to form U236 in its ground state, the energy released is B(U236) - B(U235). (a) Prove this statement. (b) Use the binding-energy formula to estimate the energy released, and compare with the observed calue of 6.5 MeV. (Note: We have assumed here that U236 is formed in its ground state, and the ...continues

Linear Momentum (Changing Mass)

Please show all work with answer!!! A rocket with initial mass of 8.0 x 10^3 kg is fired vertically. Its exhaust gases have a relative velocity of 2.5 x 10^3 m/s and are ejected at a rate of 40 kg/s. A. What is the initial accerleration of the rocket? B. What is the acceleration after 20 s have elapsed. I paid for these ...continues

Elastic Collision in One Dimension

PLEASE SHOW ALL WORK WITH CORRECT ANSWER!!!!! 8.10 Two air-track gliders of equal mass are initially moving in the same direction alone a straight line. The rearmost glider has an initial speed of 3.0 m/s and the forward glider has a speed of 2.0 m/s. if the collision is elastic, what are the speeds and directions of the gl ...continues

Motion in a Gravitational Potential

PLEASE SHOW ALL WORK WITH CORRECT ANSWER!!! 8. 40 A rocket is projected upward from the earth's surface (r=Re) WITH AN INITIAL SPEED Vo that carries it to a distance r=1.5Re from the center of the earth. What is the launch speed Vo? Assume that air friction can be ignored and give your answer in terms of g and Re. Hint in ...continues

Escape Speed

PLEASE SHOW ALL WORK WITH ANSWER!!!! 8.51 Show that the escape speed from the is square root 2 times a large as the orbital speed of an object in orbit just above the earths' surface.

Conservation of Momentum in Two-and Three Dimension Collision

PLEASE SHOW ALL WORK WITH CORRECT ANSWER!!! 7. 46 Two pendulums are hung adjacent to each other. Bob 1 has a mass m, and bob 2 has a mass 2m. Bob 1 is pulled aside until the support string makes an angle of 45 degrees with the vertical direction and then released. When the bobs bollide, the stick together. What is the maxim ...continues

Linear Momentum

PLEASE SHOW ALL WORK WITH CORRECT ANSWER!!! A 9.72-g bullet is fired from a 30-30 rifle at a speed of 728 m/s into the 1.250 kg block of ballistic pendulum suspended by strings 3.9 m long. A.) through what vertical distance does the block rise? B.) how far does it swing horizontally? THE BOOK KEY IS SHOWING 1.61m ...continues

Conservation of Momentum in 2 & 3 dimensional Collisions

PLEASE SHOW ALL WORK WITH ANSWER!!!! 7.49 A 7.2 kg bowling ball moving at 2.74 m/s strikes an identical ball that is originally at rest. After the collision the path of the intitially moving ball makes an angle of 27 degrees with respect to its original path. The path of the second ball makes an angle of -53 degrees with resp ...continues