Krystal is pulling cart A (mass = 54.0kg) which is tied to cart B (mass = 34.6kg). The carts accelerate at a rate of 1.73m/s^2 west. Assume friction is negligible. Provide a separate FBD for both part a and b. a) What force is Krystal pulling with? [5T] b) What is the magnitude of the force of tension between the boxes?[5T]

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?