Ablock of unknown mass is attached to a spring with a spring constant of 7.00 n/m 2 and undergoes simple harmonic motion with an amplitude of 12.5 cm. when the block is halfway between its equilibrium position and the end point, its speed is measured to be 32.0 cm/s (a )calculate the mass of the block.
( b)calculate the period of the motion.
(c ) calculate the maximum acceleration of the block.

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?