Aconical tank has height 3 m and radius 2 m at the top. water flows in at a rate of 2.1 m3/min. how fast is the water level rising when it is 1.3 m from the bottom of the tank? (round your answer to three decimal places.)

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.

The ability to make things happen is also called a. heat b. force c. matter d. energy

Two charged particles, q1 and q2, are located on the x-axis, with q1 at the origin and q2 initially at x1 = 12.2 mm. in this configuration, q1 exerts a repulsive force of 2.62 µn on q2. particle q2 is then moved to x2 = 18.0 mm. what is the force (magnitude and direction) that q2 exerts on q1 at this new location? (give the magnitude in µn.)