Two masses connected by a rope over a pulley are released, producing the bar graphs below. It took 0.80 seconds for Mass A to reach the top and Mass B to reach the bottom. What was the acceleration of Mass A? Bar graph
A. 5.12 m/s2
B. 3.20 m/s2
C. 2.05 m/s2
D. 1.28 m/s2

Which flexible structure that supports the nerve cord and led to the backbone

Living cells cannot use heat to provide the activation energy for biochemical reactions because which choice(s) complete the sentence correctly? a) answer choice ii. eliminate b) answer choices ii and iv. c) answer choice iii and iv. d) all answers can complete the sentence.

What is any method of measuring the age of an object or event in years, such as using atomic half-life?