Four students measure the mass of a standard mass that
has an accepted value of 150.0 g. They post their results in
a table
which statements about the data are true? Check all that
apply.
Rosa and Tran have the most accurate data.
Tran's value is more precise than Rahul's.
Student
Rahul
Tran
Lea
Rosa
Mass (g)
152
150
153.8
149.9
Lea's and Rosa's data have the same degree of
precision
Tran has the only accurate result
Rahul's value is more accurate but less precise than
Lea's

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.