You pull a simple pendulum of length 0.225m to the side through an angle of 3.50∘ and release it. part a how much time does it take the pendulum bob to reach its highest speed? take free fall acceleration to be 9.80 m/s^2 . t = part b how much time does it take if the pendulum is released at an angle of 1.75∘ instead of 3.50∘? t =

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87