Two uniform thin plates of mass m = 2 kg each are welded to a shaft of negligible mass. Each plate is square plate of length b = 0.4 m and width b = 0.4 m. Find the inertia tensor based on the given axes. Then, use MATLAB to find the principal moments of inertia and their directional cosines. Use the data to draw the principal axes. Include a printout of your MATLAB code and output

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?

Could we see a galaxy that is 20 billion light-years away?

Aparticle moves in a circle 1.50 m in radius . through what angle in radians does it rotate if it moves through an arc length of 2.50m? what is the angle in degrees?