The 1440 kg car is held in place on the inclined ramp by the horizontal cable from A to B. The car's brakes are not activated, so the tires exert only normal forces on the ramp. Determine the magnitude of the force exerted by the cable on the car

The ph is the a.independent variable b.the dependent variable c.control group

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.

Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. a-if a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b- what is the bearing's impact velocity?