Five marbles roll down a ramp. each marble reaches the bottom of the ramp at a speed of 3 meters/second. which marble has the highest kinetic energy at the bottom of the ramp? the table lists the mass of each marble.
marble 1 10g
marble 2 20g
marble 3 25g
marble 4 40g
marble 5 30g

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.

What does every magnet possess? a. iron metal b.strong magnetic field c.repulsion d.north and south poles

Asquare isothermal chip is of width w=5 mm on a side and is mounted in a substrate such that its side and back surfaces are well insulated; the front surface is exposed to the flow of a coolant at tinf=15 °c. from reliability considerations, the chip temperature must not exceed t=85 °c. if the coolant is air and the corresponding convection coefficient is h=200 w/m2 x k, what is the maximum allowable "power" of the chip? if the coolant is a liquid for which h=3000 w/m2 x k, what is the maximum allowable power of the chip?