Two forces act at a point the magnitude of the two forces 6,8 newton and the meas f the included angle between them \( \theta \in\left[0, \frac{\pi}{2}[\right. \), then the magnitude of their resul ould be equal \( \qquad \) newton. 5 (b) 10 (c) 12 (d) 16

El péndulo, de masa \( m \) y largo \( L \), de la figura oscila de modo que la masa describe un movimiento circunferencial uniforme de radio \( R \), con una velocidad tangencial de magnitud \( v \).

Problem (1) uniform bar \( A B \) of mass 40 kg and 8 m length is fixed in a vertical plane by two strings \( A D \) Id \( B H \), and a body of mass 60 kg is humg at a point \( C \) on \( A B \) so the bar became in an quilibrium state horizontally, and \( m(\angle D A B)=120^{\circ}, m(<H B A)=150^{\circ} \). find the magnitude fine tension in each of the strings and the length \( \overline{A C} \). Answer.

A boat is supposed to travel with a velocity vector of \( \langle 40,30\rangle \), but the current has a velocity vector of \( \langle 0,-5\rangle \). What is the boat's actual velocity vector? \( \langle 45,30\rangle \) \( \langle 40,25\rangle \) \( \langle 40,35\rangle \)

Sebuah mobil bermassa 1200 kg bergerak dengan kecepatan \( 20 \mathrm{~m} / \mathrm{s} \). Mobil tersebut kemudian direm hingga berhenti setelah menempuh jarak 50 meter. Berapakah gaya pengereman yang bekerja pada mobil tersebut?

Question ix. An ideal gas is enclosed in a cylinder which has a movable piston. The gas is heated, resulting in an increase in temperature of the gas, and work is done by the gas on the piston so that the presure remains constant. a) Is the work done by the gas negative, positive or zero? b) From a microscopic view, how is the internal energy of the gas molecules affected? c) Is the heat less than, greater than or equal to the work? Explain you answer.