Physics, 20.09.2020 08:01 jljhenkel

A student is measuring the lengths of caterpillars for an experiment. She measures 100 caterpillars using a ruler that measures to the nearest
centimeter. Which statement describes a change that could help improve the results in her experiment?

A. Her measurements will be more precise if she measures an
additional 100 caterpillars.
B. Her measurements will be more precise if she uses a ruler that
measures to the nearest millimeter.
C. Her measurements will be more accurate if she uses a ruler that
measures to the nearest millimeter.
D. Her measurements will be more accurate if she measures an
additional 100 caterpillars

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 06:40

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a.the kinetic energy increases.b.the kinetic energy decreases.c.the kinetic energy remains the same.d.the kinetic energy is always zero.

Answers: 1

Answer

Physics, 22.06.2019 10:00

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Answers: 2

Answer

Physics, 22.06.2019 10:30

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

Answers: 1

Answer

Physics, 22.06.2019 11:30

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.

Answers: 1

Answer

You know the right answer?

A student is measuring the lengths of caterpillars for an experiment. She measures 100 caterpillars...

Questions