Atwood’s machine consisted of two masses connected by a string that passes over a pulley, as shown below. The hanging mass m2 accelerates in the downwards direction. I also apply a small opposing upwards force F = 1⁄4 m2g on the bottom on the mass m2 but the mass m2 continues to accelerate in the downwards direction. (a) Find the Tension of the masses in terms of m1 and m2. (b) Calculate the numerical value of the Tension if m1 = 3.1 kg and m2 = 5.4 kg.

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction

Bonds within one water molecule are examples of

Aperson walks 7 feet east stops and walks 7 feet west