Physics, 27.02.2020 03:28, soevse

A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake. She hears the echo 2.91 s after shouting. Determine the length of the lake. Speed of sound in air is 343 m/s.

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 02:50, antcobra

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

Answers: 3

continue

Physics, 22.06.2019 03:00, mmcdaniels46867

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.

Answers: 1

continue

Physics, 22.06.2019 04:30, Lauraemia43

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Answers: 1

continue

Physics, 22.06.2019 09:30, liyah450

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Answers: 1

continue

Do you know the correct answer?

A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff...