3D CAD Modeling Answers

State against each observation below whether it is true or false. Give reasons for your answer.
i. The angular momentum of an artificial satellite rotating about the earth under its gravitation
varies with time
ii. An alpha particle scattered from an atomic nucleus moves in a plane.
iii. An artificial satellite moves at greater speed when it is nearer the earth.

Suppose you are designing a cart for carrying goods downhill. To maximize the cart speed,
should you design the wheels so that their moments of inertia about their rotation axes are large
or small, or it does not matter? Explain assuming that the mechanical energy is conserved.

what is the sum of room modes if the room 15 meters length 7 meters width and 4 meters hight?

Simulate the half wave Controlled Rectifier circuit with RL Load using the given values and obtain the input, output waveforms . Vs= 230v , F=50hz with R=100ῼ , L= 100mH and α= 40 .