Applying the Conservation Laws

PLEASE SHOW ALL WORK WITH ANSWERS!!! 8.60 A 2.5 kg block collides with a horizontal spring of negligible mass and spring constant k=320 N/m. The block compress the spring by 8.5 cm from its rest position. How fast was the block going when it hit the spring if the frictional coefficient between the block and the horizont ...continues

Elastic Collision in One Dimension

PLEASE SHOW ALL WORK WITH ANSWERS!!! 8.22 Blocks of mass m and 2 m are positioned on a semicircular frictionless track at a height of R/4 above the lowest point. The blocks are released simultaneously and collide elastically. How high does each block rise after the collision?

Elastic Collision in One Dimension

PLEASE SHOW ALL WORK WITH CORRECT ANSWER!!! PLEASE SHOW ALL WORK WITH CORRECT ANSWER!!!! 8. 19 A ball of mass 2 m is projected upward with speed Vo(or V=0)from the floor. Another ball of mass m is hung from the ceiling by a light string at a height h directly above the first ball, so that the projected ball collides with ...continues

nature of momentum

Imaginne a small car on a frictionless trail. the car has mirrors on its front and rear, facing the trail. Now if we aim a very strong laser beam at either of the mirrors, the laser will exert a momentum on the car, causing it to move at the beam's direction (assuming the car is in neutral gear). My question is: If we aim equ ...continues

periodic motion/SHM

A fisherman's scale stretches 2.8cm when a 3.7kg fish hangs from it. (a)what is the spring constant? (b)what will be the amplitude and frequency of vibration if the fish is pulled down 2.5cm more and released so that it vibrates up and down? *please explain this as simply and clearly as possible, thank you so much :)

periodic motion/SHM

A spring vibrates with a frequency of 3.0 Hz when a weight of 0.50 kg is hung from it. What will its frequency be if only 0.35 kg hangs from it? *please explain this as simply and clearly as possible, thank you so much :)

charged particles

There are two charged particles that repel each other with a force F. If the charge of one of the particles is doubled and the distance between them is also doubled, then what would the force be and why?

force needed for circular motion

20. a spring scale on a rotating platform indicates that the horizontal force on a 0.452 kg mass is 1.34N when the mass is 2.37m from the axis of rotation. How long does it take for the platform to make on revolution? show all work with correct answers (think physics for dummies)

the law of universal gravitation

40. you drive an automobile of mass 2.10*10(3) kg from sea level to the top of a mountain 2.05km high? What is the automobiles' change in weight? You will need the binomial expansion given in Appendix A please show all work with correct answers (think physics for dummies when explaining)

+ - charges

If a positive charge and a negative charge held near each other are released; what happens to the forces on each particle as they move?