A car of mass 1000kg has a velocity of 10ms-1 east collides at a crossroads with a car of mass 800kg which has a velocity of of 5ms-1 north. If the cars lock together after collision, calculate their velocity immediately after the collision. How much kinetic energy is converted to other forms in the collision? Calculate total kinetic energy before and after.​

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.

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap