Hanging Spring When a 0.30 kg mass is suspended from a massless spring, the spring stretches a
distance of 2.0 cm.
Let 2.0 cm be the rest position for the mass-spring system.
The mass is then pulled down an additional distance of 1.5 cm and released.

Calculate the total mechanical energy of the system in SI units.

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

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

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