Physics, 31.03.2020 17:32, payshencec21

A wave has a frequency of 20 Hz and a wave speed of 5.0 m/s. what is the wave length
0.01 m
0.25 m
100 m
4.0 m

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 07:00, marlenemedina247

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s

Answers: 2

continue

Physics, 22.06.2019 07:00, dsperez201938

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Answers: 1

continue

Physics, 22.06.2019 19:10, summer132

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to

Answers: 3

continue

Physics, 22.06.2019 19:50, fili20

The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.

Answers: 3

continue

Do you know the correct answer?

A wave has a frequency of 20 Hz and a wave speed of 5.0 m/s. what is the wave length
0.01 m