2points
you use the lever below to lift a box.
capu
0.19 m 0.25 m
if you apply a force of 130 n to the lever, how much force is applied to lift the
crate?
o
a. 99 n
o
b. 130 n
o
c. 171 n
o d. 342 n

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

Anybody wanna ? (picture included? )

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s