i need this in 1 and half hours Week 7 – Nuclear Physics Please solve the following problems. You must show all work for full/partial credit. When complete, attach a typed cover sheet and submit to the assignment drop-box. 1) What is the approximate radius of 2) What is the approximate radius of a nucleus? (b) Approximately what is the value of A for a nucleus whose radius is 3.0 x 10-15m? 3) Calculate the binding energy per nucleon for a nucleus. 4) 5) Polonium-214 can decay by alpha decay. a) The product of its decay has how many fewer protons the polonium-214? b) Write the nuclear equation for this decay. 6) Write the nuclear equation for the decay of ? If there are any alpha, beta or gamma particles created what is their maximum kinetic energy created? 7) Francium-223 ( ) has a half-life of 21.8 min. a) How many nuclei are initial present in a 25.0 mg sample? b) How many nuclei are present 1h and 49 min later? 8) What is the activity of a sample of that contains 8.9 x 1022 nuclei?
Can someone solve this projectile motion physics problem? I'd appreciate it if you could include the work. There seems to be a missing link in finding all the components but I need to know how to solve it and why i can solve it that way. Here is the question: An archer shoots an arrow at a 75.0 m distant target; the mull's eye of the target is at the same height as the release height of the arrow. At what angle must the arrow be released to hit the bull's eye if its initial speed is 35.0 m/s? (In this part of the problem explicitly show how you follow the steps involved in solving projectile motion problems.)
1.Using the principle of momentum conservation, explain what happens when a moving billiard ball collides with a stationary ball (cue ball hitting the eight ball). 2.Explain the difference between energy and power and how they are related to work. Give examples of each. 3.1000 kilogram car is lifted 1 meter. a) What is the potential energy with respect to the floor? b) If the car is lifted 2 meters high, what is the new value of potential energy with respect to the floor? c) Explain the following: Potential energy of an object varies linearly with position (height). 4.As you catch a fast-moving fastball, why is it wise to move your hand in the direction of the ball's motion? Explain in terms of work and energy. 5. If a sprinter running at a speed of 10 meters per second could convert his/her kinetic energy into upward motion, how high could he/she jump? 6.What various forms of energy are present as you shoot a bow and arrow? 7. Answer the following questions: a) If you push a lawn mower across a yard in 10 seconds, how does the work done compare with pushing it across the same yard in 20 seconds? Explain why. c) How does the power for 10 seconds compare to the power for 20 seconds??
I have a physics lab i need done. I have 2 pdf files with the instructions and 3 excel files that the lab is done on. its not actually that hard, I'm just outta town for a few weeks. example to part of the first lab: For an object undergoing constant acceleration in one dimension, we developed equations that describe the position and velocity of the object as a function of time. Xf=Xi + Vxi?t + 1/2Ax (?t)^2 and Vxf= Vxi + Ax?t If we assume the object starts at position xi=0 at time ti=0, the equations can be simplified as x= Vit +1/2At^2 and v=Vi +at where ‘x’ is the final position of the object and ‘v’ is the final velocity.
A 30.0g arrow is shot by william tell through an 8.00cm thick apple sitting on top of his son's head. If the arrow enters the apple at 30.0 m/s and emerges at 25. m/s in the same direct, with what force has the apple resisted the arrow?
