Physics, 17.11.2019 18:31 gleatons429

Which of the following is an example of how a scientist might use a model?

a. marbles placed inside a hollow sphere are used to describe protons in a nucleus
b. a wrench is used to tighten a nut onto a piece of wood
c. stopwatches measure the amount of time it takes for runners to complete a mile
d. microscopes are used to magnify a group of cells on sets of slides

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 09:50, blaqsafire9291

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Answers: 3

continue

Physics, 22.06.2019 15:50, rosepetals2938

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?

Answers: 1

continue

Physics, 22.06.2019 23:00, itscheesycheedar

Astronomers studying the planet of rhombus have detected sedimentary rock on its surface. one astronomer wonders if material in this sedimentary rock used to be in igneous rock deep in rhombus’s interior. can igneous rock become sedimentary rock? explain your answer.

Answers: 1

continue

Physics, 22.06.2019 23:40, Demondevilg

Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.

Answers: 3

continue

You know the right answer?

Which of the following is an example of how a scientist might use a model?

a. marbles p...