subject
Physics, 20.09.2019 21:10 gizmo50245

You are a member of a geological team in central africa. your team comes upon a wide river that is flowing east. you must determine the width of the river and the current speed (the speed of the water relative to the earth). you have a small boat with an outboard motor. by measuring the time it takes to cross a pond where the water isnt flowing, you have calibrated the throttle settings to the speed of the boat in still water. you set the throttle so that the speed of the boat relative to the river is a constant 6.00 m/s. traveling due north across the river, you reach the opposite bank in 20.1 s. for the return trip, you change the throttle setting so that the speed of the boat relative to the water is 7.40 m/s . you travel due south from one bank to the other and cross the river in 11.2 s. part 1: how wide is the river and what is the current speed? part 2: with the throttle set so that the speed of the boat relative to the water is 6.00m/s, what is the shortest time in which you could cross the river, and where on the far bank would you land?

ansver
Answers: 3

Other questions on the subject: Physics

image
Physics, 21.06.2019 16:10, ians1544
At what point the certain object feels zero garvitational force between earth and the moon. take the required information from the book. required: distance away from earth or moon
Answers: 1
image
Physics, 21.06.2019 19:30, melinasilerox9mjh
Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s
Answers: 1
image
Physics, 22.06.2019 00:20, alyvia05
Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.
Answers: 1
image
Physics, 22.06.2019 09:00, dxpebetty64
When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical
Answers: 2
You know the right answer?
You are a member of a geological team in central africa. your team comes upon a wide river that is f...

Questions in other subjects:

Konu
Social Studies, 03.07.2019 10:30
Konu
Biology, 03.07.2019 10:30
Konu
Biology, 03.07.2019 10:30