How much work is accomplished when a force of 250 n pushes a box across the floor for a distance of 50 meters?
a) 5 j
b) 5 n
c) 12,500 n
d) 12,500 j

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)

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.