Prove p = hdg
please give answer if you know​

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same