We will model the arm of a person curling 20 kg as a bar of…

We will model the arm of a person curling 20 kg as a bar of length 37 cm with a weight on the end. The bicep attaches to the bar 7cm from the axis of rotation of the bar, and the other end of the bicep is attached 26 cm from the axis of rotation to the upper arm, as drawn below. What is the tension in the bicep if the weight is in static equilibrium? question8.png

A solid ball (I = 2/5 m R^2) with mass m = 2 kg rolls down a…

A solid ball (I = 2/5 m R^2) with mass m = 2 kg rolls down an inclined plane. The plane has a length L = 5 m, and an angle with respect to the horizontal of 20 degrees. Taking into account the moment of inertia of the ball, what is the speed of the ball when it gets down to the bottom of the plane if it started up at the top at rest. 

An incompressible fluid flows into a circular cross-sectione…

An incompressible fluid flows into a circular cross-sectioned pipe with a diameter of d = 7 cm. The speed of the fluid is 10 m/s. The pipe changes diameter halfway along its length to a 10 cm diameter pipe. What is the speed of fluid flow in in this wider pipe?

Choose appropriate words to complete sentences with “without…

Choose appropriate words to complete sentences with “without doing____”.  Please type ONLY Hiragana and do NOT use punctuation (。、) 1. 今日はテストがありますが、昨日  ねてしまいました。 (without studying)  2. お金がないので  生活しています。 (without buying expensive stuff)  3.  会社に行ってしまいました。 (without eating breakfast) 

Describe the pictures using causative passive forms with PAS…

Describe the pictures using causative passive forms with PAST TENSE. Do not use informal speech. Please type ONLY Hiragana and do NOT use punctuation (。、).       にもつを持つ                                       ひろしさんはみちこさんに 。     夕食をおごる               みちこさんはひろしさんに 。    買い物につきあう             ひろしはみちこさんに  。   おべんとうを作る    ひろしさんはみちこさんに 。