A44.0 kg uniform rod 4.90 m long is attached to a wall with a hinge at one end. the rod is held in a horizontal position by a wire attached to its other end. the wire makes an angle of 30.0° with the horizontal, and is bolted to the wall directly above the hinge. if the wire can withstand a maximum tension of 1450n before breaking, how far from the wall can a 69.0kg person sit without breaking the wire?

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

** urgent** the voltage across the primary winding is 350,000 v, and the voltage across the secondary winding is 17,500 v. if the secondary winding has 600 coils, how many coils are in the primary winding? a- 30 coilsb- 583 coilsc- 12,000 coilsd- 332,500 coils