Please, show me how you got the answers and give me the answers. Thanks

1. A compass needle in a uniform magnetic field of 0.30 T experiences a torque of 0.050 N * m when it points in a direction 45 degrees away from the direction of the field. What is the magnitude of the needle's magnetic moment? 2. A slender, 150-g bar magnet 15.0 cm long has a magnetic moment of 5.30 x 10^6 A * m^2. It is hel ...continues

Conduction, convection..

A hollow sphere of inside and outside radius... (see attached for rest of question)

Carnot Heat Engine, T-s Diagram

See attached

Power Problem

A block with mass m has a coefficient of kinetic friction Mk with the floor. If the block is obeying Newton's 1st law while being pushed at angle 0 (theta), show that the power needed to push it at velocity v is given by P=Mkv(mg+fsin0)

Car problem need response ASAP PLEASE

For a car traveling at velocity v around a curve of radius r, there is a particular angle 0 (theta) that the curve ought be banked so that the car is least likely to slide sideways. Show that this special angle is given by O=tan-1[(VxV0/(rg)]

Movie Problem need a response ASAP please

A fantastic piece of engineering by General Electric was featured on "Predator", the mini-gun. Suppose Arnold holds the gun one foot (.300 meters) from his axis of rotation, firing perpendicular to said axis. His mini-gun shoots Russian 7.62x39 (8.11 grams, 671m/s) at cyclic rate of 3000 rounds per minute. What is the average fo ...continues

Record Player problem need response ASAP Please

An unskilled DJ is chewing some very dense (to be later thought of as a point mass) Big League Chew while spinning records with his pals. The platten and record combined appear as a "solid cylinder or disk" with a diameter of 30cm and a mass of 700 grams. The DJ is working in some kids theme music (let us suppose Disney), and th ...continues

Ballistic Pendulum problem

A ballistic pendulum is a great device for measuring projectile speeds that are relatively large. You launch a small mass m into a large mass M, and it swings up a height h where the two masses stick together. Show that the velocity of the projectile (mass m) is given by v= (m+M)/m) times the square root of 2gh

Desert Eagle Problem 1 Need response ASAP Please!!!!!!!!!!!1

A desert Eagle chambered for 44 mag in effect launches a bullet from a compressed slide spring (the bullet develops full velocity as the spring develops full compression). If the bullet is 180 grain (11.67 grams), has a muzzle velocity of 1450 fps (442 m/s); assuming kinetic energy is conserved, what is the spring constant of th ...continues

Desert Eagle Poblem 2 need response ASAP PLEASE!!!!!!

A guy fires a desert eagle chambered for 44 mag at ground level on a flat area of the moon. The projectile exits the muzzle at 1450 fps (442m/s) and at an angle 27 degrees above the ground. Supposing the gravitation on the moon is 1/6 that it is on earth, determine both how far the bullet went and how long it took to get there.