Helpp

Suppose the expected value for a mass is exactly one kilogram. A lab group checked the mass and made the following measurements:

2.01 kg, 2.02 kg, 1.99 kg, 1.97 kg

Which answer choice BEST describes these measurements?

A. accurate and precise

B. inaccurate and precise

C. accurate and imprecise

D. inaccurate and imprecise

Which of the following correctly describes the early view of catastrophism?

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.