Formula sheet question 12 a 5 kg block starting from rest slides down a 5 m long, 3 m high straight ramp. if its speed upon reaching the bottom of the ramp is 4 m/s, how much mechanical energy was lost due to friction as it slid? o a. 210j b. 150 c. 110 j o d. 40j

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

Explain what will happen if decomposers were apsent from a forest ecoysystem.

Review multiple-concept example 7 in this chapter as an aid in solving this problem. in a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. in one instance, the radius of the circle is 0.626 m. at one point on this circle, the ball has an angular acceleration of 66.1 rad/s2 and an angular speed of 12.6 rad/s. (a) find the magnitude of the total acceleration (centripetal plus tangential) of the ball. (b) determine the angle of the total acceleration relative to the radial direction.