Three objects lie in the x, y plane. each rotates about the z axis with an angular speed of 5.58 rad/s. the mass m of each object and its perpendicular distance r from the z axis are as follows: (1) m1 = 5.46 kg and r1 = 1.98 m, (2) m2 = 3.64 kg and r2 = 16.50 m, (3) m3 = 3.21 kg and r3 = 3.09 m.

(a) find the tangential speed of each object.
(b) determine the total kinetic energy of this system using the expression ke =

Acyclotron is used to produce a beam of high-energy deuterons that then collide with a target to produce radioactive isotopes for a medical procedure. deuterons are nuclei of deuterium, an isotope of hydrogen, consisting of one neutron and one proton, with total mass 3.34×10−27kg. the deuterons exit the cyclotron with a kinetic energy of 6.40 mev .a-what is the speed of the deuterons when they exit? b-if the magnetic field inside the cyclotron is 1.25 t, what is the diameter of the deuterons' largest orbit, just before they exit? c-if the beam current is 350 μa how many deuterons strike the target each second?

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question

If a substance cannot be physically separated into component parts, it is likely to be answers a mixture a pure substance an alloy a heterogeneous mixture